| When you turn the ignition switch to ON (II), the D indicator comes on and stays on in all shift lever positions, or it never comes on at all |
- F-CAN communication line error
- Gauge control module defective
- PCM defective
|
|
| A/T gear position indicator does not come on while the shift lever is in that position |
- F-CAN communication line error
- Gauge control module defective
- PCM defective
- Transmission range switch defective
- Shift cable broken or out of adjustment
- Connection between the shift cable and transmission or shift lever is worn
|
|
| Transmission still shifts into 4th or 5th gear in D even though the D3 switch is pushed |
A problem in the D3 switch circuit |
|
| When you turn the ignition switch to ON (II), the D3 indicator comes on and stays on in all shift lever positions, or it never comes on at all |
- F-CAN communication line error
- Gauge control module defective
- PCM defective
|
|
| D3 indicator does not come on in D3 driving mode |
- F-CAN communication line error
- Gauge control module defective
- PCM defective
- D3 switch defective
- D3 switch circuit defective
|
|
| Shift indicator does not work |
- F-CAN communication line error
- Gauge control module defective
- PCM defective
- Transmission range switch defective
- Shift cable broken or out of adjustment
- Connection between the shift cable and transmission or shift/lever is worn
|
|
| Shift lever cannot be moved from P while pressing on the brake pedal |
- Accelerator pedal position sensor circuit
- Accelerator pedal position sensor defective
- Brake pedal position switch circuit
- Brake pedal position switch defective
- Shift lock solenoid defective
- Shift lock solenoid control circuit
- Shift lock mechanism defective
- Throttle body defective
- Transmission range switch ATP P switch stuck OFF
- Transmission range switch ATP P switch line opened
- Relative throttle position sensor value too high
- PCM defective
|
|
| Ignition switch cannot be moved from ACCESSORY (I) to LOCK (0) (key is pushed in, the shift lever in P) |
- Interlock control system circuit
- Key interlock solenoid stuck ON
- Park pin switch stuck ON
- Transmission range switch ATP P line opened
|
|
| When you turn the ignition switch ON (II), the A/T TEMP indicator comes on and stays on or never comes on at all |
- F-CAN communication line error
- Gauge control module defective
- PCM defective
|
|
| HDS does not communicate with the PCM |
- DLC circuit
- PCM defective
|
Troubleshoot the DLC circuit (see
DLC CIRCUIT TROUBLESHOOTING
). |
| Engine runs, but vehicle does not move in any gear |
- Low ATF level
- Shift cable broken or out of adjustment
- Connection between the shift cable and transmission or shift lever is worn
- ATF pump worn or binding
- Regulator valve stuck or spring worn
- ATF strainer clogged
- Foreign material in separator plate orifice
- Mainshaft worn or damaged
- Countershaft worn or damaged
- Final gears worn or damaged
- Park mechanism defective
- Selector control shaft worn or damaged
- Drive plate defective
- Torque converter defective
- Transmission-to-engine assembly error
|
- Check the ATF level and check the ATF cooler lines for leaks and loose connections. If necessary, clean the ATF cooler lines.
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check the stall speed (see STALL SPEED TEST
).
- Check the line pressure (see PRESSURE TEST
).
- Improper alignment of the ATF pump and the torque converter housing may cause ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
- Check the regulator valve in the regulator valve body for free movement, and check the valve springs for wear and damage.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the cooler and lines.
- Replace the torque converter.
- Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will cause ATF pump seizure. Use the proper tools.
- Install the main seal flush with the torque converter housing. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage.
- Inspect the countershaft and secondary shaft for wear and damage.
- Inspect the park mechanism at the park lever link, park gear, and 2nd gears.
- Check the drive plate for wear and damage, replace the drive plate if it is worn or damaged.
- Check for a misinstalled transmission.
|
| Vehicle moves in R, but not in D, 2, or 1 |
- 1st accumulator defective
- Idler gears worn or damaged
- 1st clutch defective
- 5th clutch defective
|
- Check the 1st and 5th clutch pressure (see PRESSURE TEST
).
- Inspect the mainshaft, the countershaft, the secondary shaft, the intermediary shaft, and the idler gears for wear and damage.
- Inspect the 1st clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 1st accumulator piston, the O-ring, and the spring in the accumulator body for wear and damage.
|
| Vehicle moves in 2 and R, but not in D or 1 |
- 1st gear one-way clutch defective
- 1st gears worn or damaged
- 1st clutch defective
|
- Check the 1st clutch pressure (see PRESSURE TEST
).
- Inspect the mainshaft, the countershaft, the 1st gears, and the one-way clutch for wear and damage.
- Inspect the 1st clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer and the retainer seal for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
|
| Vehicle moves in D, 2, and R, but not in 1 |
1st-hold clutch defective |
- Check the 1st-hold clutch pressure (see PRESSURE TEST
).
- Inspect the 1st-hold clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between clutch plate B and the top disc. If the clearance is out of tolerance, inspect, the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate.
|
| Vehicle moves in D, 1, and R, but not in 2 |
- 2nd accumulator defective
- 2nd clutch defective
|
- Check the 2nd clutch pressure (see PRESSURE TEST
).
- Inspect the 2nd clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 2nd accumulator piston, the O-ring, and spring in the accumulator body for wear and damage.
|
| Vehicle moves in D, 2, and 1, but not in R (or moves forward in R) |
- Shift fork shaft stuck
- 5th accumulator defective
- 5th clutch defective
- Reverse gears worn or damaged
- Reverse idler gear shaft/holder worn or damaged
- Reverse selector or reverse selector hub worn or damaged
|
- Check for a missing shift fork bolt on the shift fork shaft.
- Check the shift fork shaft detent for wear and damage.
- Check for a stuck servo valve in the regulator valve body, and check the O-ring for wear and damage.
- Check the stall speed in R (see STALL SPEED TEST
).
- Check the 5th clutch pressure (see PRESSURE TEST
).
- Inspect the 5th clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 5th accumulator piston, the O-ring, and spring in the accumulator body for wear and damage.
- Inspect the reverse idler gear shaft/holder for wear and damage.
- Inspect the reverse selector teeth chamfers, and inspect the engagement teeth chamfers of the countershaft 5th gear and the reverse gear. Replace the reverse gears and the reverse selector if they are worn or damaged. If the transmission makes clicking, grinding, or whirring noises, also replace the mainshaft 5th gear, the reverse idler gear, and the countershaft 5th gear.
|
| Poor acceleration; engine revs up abnormally high when starting off in D and R |
- Low ATF level
- Shift cable broken or out of adjustment
- ATF pump worn or binding
- Regulator valve stuck or spring worn
- Stator shaft worn or damaged
- ATF strainer clogged
- Torque converter one-way clutch defective
- Torque converter check valve defective
- Shift valve E defective
|
- Check the ATF level, and check the ATF cooler line for leaks and loose connections. If necessary, clean the ATF cooler lines.
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check the stall speed (see STALL SPEED TEST
).
- Check the line pressure (see PRESSURE TEST
).
- Improper alignment of the ATF pump and the torque converter housing may cause the ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
- Check the regulator valve in the regulator valve body for free movement, and check the valve springs for wear and damage.
- Check the stator shaft splines for wear and damage.
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.
- Check the torque converter check valve in the main valve body for free movement, and check the valve spring for wear and damage.
- Check the shift valve E in the main valve body for free movement, and check the valve spring for wear and damage.
- Replace the torque converter.
|
| Poor acceleration; engine revs up abnormally high when starting off in D and R; stall speed high in D and 2, and 1 |
- 1st accumulator defective
- 1st clutch defective
|
- Check the 1st clutch pressure (see PRESSURE TEST
).
- Inspect the 1st clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 1st accumulator piston, the O-ring, and spring in the accumulator body for wear and damage.
|
| Poor acceleration; engine revs up abnormally high when starting off in D and R; stall speed high in 1 |
1st-hold clutch defective |
- Check the 1st-hold clutch pressure (see PRESSURE TEST
).
- Inspect the 1st-hold clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between clutch plate B and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate.
|
| Poor acceleration; engine revs up abnormally high when starting off in D and R; stall speed high in 2 |
- 2nd accumulator defective
- 2nd clutch defective
|
- Check the 2nd clutch pressure (see PRESSURE TEST
).
- Inspect the 2nd clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 2nd accumulator piston, the O-ring, and spring in the accumulator body for wear and damage.
|
| Poor acceleration; engine revs up abnormally high when starting off in D and R; stall speed high in R |
- Shift cable broken or out of adjustment
- 5th accumulator defective
- 5th clutch defective
|
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check the 5th clutch pressure (see PRESSURE TEST
).
- Inspect the 5th clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 5th accumulator piston, the O-ring, and spring in the accumulator body for wear and damage.
|
| Poor acceleration; engine revs up abnormally high when starting off in D and R; stall speed low |
- Engine output low
- Torque converter clutch piston defective
|
- Check the stall speed (see STALL SPEED TEST
).
- Replace the torque converter.
- Check the engine control system.
|
| Engine idle vibration |
- Low ATF level
- Engine output low
- Torque converter clutch piston defective
|
- Adjust the engine and transmission mounts. e Check the ATF level, and check the ATF cooler line for leaks and loose connections. If necessary, clean the ATF cooler lines.
- Check the stall speed (see STALL SPEED TEST
).
- Check the engine control system.
- Check the line pressure (see PRESSURE TEST
).
- Improper alignment of the ATF pump and the torque converter housing may cause the ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
|
| Vehicle moves in N |
- Excessive ATF
- Low ATF level
- ATF temperature sensor defective
- Foreign material in separator plate orifice
- Relief valve defective
- Reverse control valve defective
- Lubrication control valve defective
- 1st-hold clutch defective
- 1st clutch defective
- 2nd clutch defective
- 3rd clutch defective
- 4th clutch defective
- 5th clutch defective
- Clutch end-plate clearance incorrect
- Needle bearing seized up, worn, or damaged
- Thrust washer seized, worn or damaged
|
- Check the ATF level, and drain the ATF if it is over-filled.
- Check the ATF level, and check the ATF cooler line for leaks and loose connections. If necessary, clean the ATF cooler lines.
- Inspect the ATF temperature sensor connections.
- Check the ATF temperature sensor O-ring for wear and damage.
- Check all clutch pressures (see PRESSURE TEST
).
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check the relief valve and lubrication control valve in the main valve body for free movement, and check the valve springs for wear and damage.
- Check the reverse control valve in the secondary valve body for free movement, and check the valve spring for wear and damage.
- Check the stall speed (see STALL SPEED TEST
).
- Inspect all clutches for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the needle bearings and thrust washers on all shafts for seizure, wear, and damage.
|
| Late shift after shifting from N to D, or excessive shock when shifting |
- Shift solenoid valve A defective
- Shift solenoid valve B defective
- Shift solenoid valve C defective
- A/T clutch pressure control solenoid valve C defective
- Shift cable broken or out of adjustment
- Connection between shift cable and transmission or shift lever is worn
- Low ATF level
- ATF temperature sensor defective
- CPC valve C stuck
- ATF strainer clogged
- Foreign material in separator plate orifice
- Shift valve A defective
- Shift valve D defective
- Servo control valve defective
- 1st accumulator defective
- 2nd accumulator defective
- 1st check ball stuck
- 1st clutch defective
- Clearance between clutch end-plate and top disc incorrect
|
- Inspect the shift solenoid valve function with the HDS (see SHIFT SOLENOID VALVE TEST, REPLACEMENT, AND SHIFT SOLENOID WIRE HARNESS REPLACEMENT
).
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check the ATF level, and check the ATF cooler line for leaks and loose connections. If necessary, clean the ATF cooler lines.
- Inspect the ATF temperature sensor connections.
- Inspect the ATF temperature sensor O-ring for wear and damage.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check the stall speed (see STALL SPEED TEST
).
- Check the line pressure (see PRESSURE TEST
).
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.
- Check CPC valve C in the secondary valve body for free movement, and check the valve spring for wear and damage.
- Check shift valve A in the main valve body for free movement, and check the valve spring for wear and damage.
- Check shift valve D in the secondary valve body for free movement, and check the valve spring for wear and damage.
- Check the 1st clutch pressure (see PRESSURE TEST
).
- Inspect the 1st clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 1st and 2nd accumulator pistons, the O-rings, and the springs in the accumulator body for wear and damage.
- Check for a stuck 1st check ball in the secondary valve body.
|
| Late shift after shifting from N to R, or excessive shock when shifting |
- A/T clutch pressure control solenoid valve C defective
- Shift cable broken or out of adjustment
- Connection between shift cable and transmission or shift lever is worn
- ATF temperature sensor defective
- Reverse CPC valve defective
- ATF strainer clogged
- Foreign material in separator plate orifice
- 5th clutch defective
|
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, ATF feed pipes, and the O-rings for wear and damage.
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check the stall speed (see STALL SPEED TEST
).
- Check the line pressure (see PRESSURE TEST
).
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.
- Inspect the ATF temperature sensor connections.
- Inspect the ATF temperature sensor and O-ring for wear and damage.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check the stall speed in R (see STALL SPEED TEST
).
- Check the 5th clutch pressure (see PRESSURE TEST
).
- Inspect the 5th clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
|
| Transmission does not shift |
- Input shaft (mainshaft) speed sensor defective
- Output shaft (countershaft) speed sensor defective
|
- Check the speed sensor installation.
- Inspect the input shaft (mainshaft) speed sensor corrosion or the output shaft (countershaft) speed sensor corrosion.
- Inspect the input or output shaft speed sensor O-ring for wear and damage.
|
| Excessive shock or engine revs up abnormally high on all upshifts and downshifts |
- Input shaft (mainshaft) speed sensor defective
- Output shaft (countershaft) speed sensor defective
- ATF temperature sensor defective
- Foreign material in separator plate orifice
|
- Check the speed sensor installation.
- Inspect the input shaft (mainshaft) speed sensor corrosion or the output shaft (countershaft) speed sensor corrosion.
- Inspect the ATF temperature sensor connections.
- Inspect the ATF temperature sensor O-ring for wear and damage.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice.
|
| Excessive shock or engine revs up abnormally high on 1-2 upshift or 2-1 downshift |
- Shift solenoid valve A defective
- Shift solenoid valve B defective
- Shift solenoid valve C defective
- A/T clutch pressure control solenoid valve A defective
- A/T clutch pressure control solenoid valve B defective
- A/T clutch pressure control solenoid valve C defective
- Transmission fluid pressure switch A (2nd clutch) defective
- CPC valve A defective
- CPC valve B defective
- CPC valve C defective
- Shift valve C defective
- Shift valve D defective
- Foreign material in separator plate orifice
- 2nd accumulator defective
- 2nd clutch defective
|
- Inspect the shift solenoid valve function with the HDS (see SHIFT SOLENOID VALVE TEST, REPLACEMENT, AND SHIFT SOLENOID WIRE HARNESS REPLACEMENT
).
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve A or B with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A AND B TEST
).
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check for a clogged orifice in the transmission fluid pressure switch connector. If the orifice is clogged, remove it, and clean the connector.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check CPC valve A in the main valve body for free movement, and check the valve spring for wear and damage.
- Check CPC valves B and C in the secondary valve body for free movement, and check the valve springs for wear and damage.
- Check shift valves C and D in the secondary valve body for free movement, and check the valve springs for wear and damage.
- Check the 2nd clutch pressure (see PRESSURE TEST
).
- Inspect the 2nd clutch for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage, inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 2nd accumulator piston, the O-ring, and the spring in the accumulator body for wear and damage.
|
| Excessive shock or engine revs up abnormally high on 2-3 upshift or 3-2 downshift |
- Shift solenoid valve D defective
- A/T clutch pressure control solenoid valve A defective
- A/T clutch pressure control solenoid valve B defective
- A/T clutch pressure control solenoid valve C defective
- Transmission fluid pressure switch B (3rd clutch) defective
- Shift fork shaft stuck
- Servo control valve defective
- CPC valve A defective
- CPC valve B defective
- Lock-up shift valve defective
- Foreign material in separator plate orifice
- 2nd accumulator defective
- 3rd accumulator defective
- 2nd check ball stuck
- 2nd clutch defective
- 3rd clutch defective
- Clearance between the clutch end-plate and the top disc incorrect
|
- Inspect the shift solenoid valve function with the HDS (see SHIFT SOLENOID VALVE TEST, REPLACEMENT, AND SHIFT SOLENOID WIRE HARNESS REPLACEMENT
).
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve A or B with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A AND B TEST
).
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check for a clogged orifice in the transmission fluid pressure switch connector. If the orifice is clogged, remove it, and clean the connector.
- Check for a missing shift fork bolt on the shift fork shaft.
- Check the shift fork shaft detent for wear and damage.
- Check for a stuck servo valve in the regulator valve body, and check the O-ring for wear and damage.
- Check the servo control valve, CPC valve A, and lock-up shift valve in the main valve body for free movement, and check the valve springs for wear and damage.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check CPC valve B in the secondary valve body for free movement, and check the valve spring for wear and damage.
- Check the 2nd and 3rd clutch pressures (see PRESSURE TEST
).
- Inspect the 2nd and 3rd clutches for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 2nd and 3rd accumulator pistons, the O-rings, and the springs in the accumulator body for wear and damage.
- Check for a stuck 2nd check ball in the secondary valve body.
|
| Excessive shock or engine revs up abnormally high on 3-4 upshift or 4-3 downshift |
- A/T clutch pressure control solenoid valve A defective
- A/T clutch pressure control solenoid valve B defective
- A/T clutch pressure control solenoid valve C defective
- Transmission fluid pressure switch C (4th clutch) defective
- Shift fork shaft stuck
- Servo control valve defective
- Foreign material in separator plate orifice
- 3rd accumulator defective
- 4th accumulator defective
- 3rd clutch defective 4th clutch defective
- Clearance between the clutch end-plate and the top disc incorrect
|
- Inspect the A/T clutch pressure control solenoid valve A or B with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A AND B TEST
).
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check for a missing shift fork bolt on the shift fork shaft.
- Check the shift fork shaft detent for wear and damage.
- Check for a stuck servo valve in the regulator valve body, and check the O-ring for wear and damage.
- Check the servo control valve in the main valve body for free movement, and check the valve spring for wear and damage.
- Check for a clogged orifice in the transmission fluid pressure switch connector. If the orifice is clogged, remove it, and clean the connector.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check the 3rd and 4th clutch pressures (see PRESSURE TEST
).
- Inspect the 3rd and 4th clutches for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 3rd and 4th accumulator pistons, the O-rings, and the springs in the accumulator body for wear and damage.
|
| Excessive shock or engine revs up abnormally high on 4-5 upshift or 5-4 downshift |
- A/T clutch pressure control solenoid valve A defective
- A/T clutch pressure control solenoid valve B defective
- A/T clutch pressure control solenoid valve C defective
- Foreign material in separator plate orifice
- 4th accumulator defective
- 5th accumulator defective
- 4th clutch defective
- 5th clutch defective
- Clearance between clutch end-plate and top disc incorrect
|
- Inspect the A/T clutch pressure control solenoid valve A or B with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A AND B TEST
).
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check the stall speed in R (see STALL SPEED TEST
).
- Check the 4th and 5th clutch pressures (see PRESSURE TEST
).
- Inspect the 4th and 5th clutches for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the 4th and 5th accumulator pistons, the O-rings, and the springs in the accumulator body for wear and damage.
|
| Noise from transmission in all shift lever positions |
- ATF pump worn or binding
- ATF strainer clogged
- Mainshaft, countershaft, secondary shaft, and intermediary shaft bearings worn or damaged
- Idler gears worn or damaged
- Thrust washer seized, worn, or damaged
|
- Check the line pressure (see PRESSURE TEST
).
- Improper alignment of the ATF pump and the torque converter housing may cause the ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris. If no cause for contamination is found, replace the torque converter.
- Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the cooler and lines.
- Replace the torque converter.
- Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will cause the ATF pump seizure. Use the proper tools.
- Install the main seal flush with the torque converter housing. If you push it into the torque converter housing until it bottoms out, it will block the fluid return passage and result in damage.
- Inspect the countershaft and secondary shaft for wear and damage.
- Inspect the park mechanism at the park lever link, park gear, and 2nd gears.
- Inspect the mainshaft, the countershaft, the secondary shaft, the intermediary shaft, and the idler gears for wear and damage.
- Check the thrust washers on all shafts for seizure, wear, and damage.
|
| Vehicle does not accelerate above 31 mph (50 km/h) |
Torque converter one-way clutch defective |
|
| Vibration in all shift lever positions |
- Drive plate defective or transmission misassembled
- Torque converter defective
- ATF pump worn or binding
|
- Check for a misassembled transmission, and check the drive plate for wear and damage. Replace the drive plate if it is worn or damaged.
- Check the stall speed (see STALL SPEED TEST
).
- Check the line pressure (see PRESSURE TEST
).
- Improper alignment of the ATF pump and the torque converter housing may cause the ATF pump seizure. The symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
- Inspect the differential pinion gears for wear. If the differential pinion gears are worn, replace the differential assembly, replace the ATF strainer, thoroughly clean the transmission, and clean the cooler and lines.
- Replace the torque converter.
- Be careful not to damage the torque converter housing when replacing the main ball bearing. You may also damage the ATF pump when you torque down the main valve body. This will cause the ATF pump seizure. Use the proper tools.
|
| Shift lever does not operate smoothly |
- Transmission range switch defective or out of adjustment
- Shift cable broken, binding, or out of adjustment
- Connection between shift cable and transmission or shift lever is worn
- Manual valve defective
- Selector control shaft worn or damaged
|
- Inspect the transmission range switch. If the transmission range switch fails the inspection, replace the switch. If the inspection is OK, check for proper transmission range switch installation, and adjust the shift cable.
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check the manual valve in the main valve body for wear and damage, and check the manual lever guide pin for wear and damage.
|
| Transmission does not shift into P |
- Shift cable broken, binding, or out of adjustment
- Connection between shift cable and transmission or shift lever is worn
- Park mechanism defective
- Secondary shaft 2nd gear worn or damaged
|
- Check for a loose shift cable at the shift lever and the selector control lever.
- Inspect the countershaft and secondary shaft for wear and damage.
- Inspect the park mechanism at the park lever link, park gear, and 2nd gears.
|
| Torque converter clutch does not disengage |
- Shift solenoid valve D defective
- A/T clutch pressure control solenoid valve C defective
- Torque converter clutch piston defective
- Lock-up shift valve defective
- Lock-up control valve defective
- Lock-up timing valve defective
|
- Inspect the shift solenoid valve function with the HDS (see SHIFT SOLENOID VALVE TEST, REPLACEMENT, AND SHIFT SOLENOID WIRE HARNESS REPLACEMENT
).
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, ATF feed pipes, and the O-rings for wear and damage.
- Replace the torque converter.
- Check the lock-up shift valve and the lock-up timing valve in the main valve body for free movement, and check the valve springs for wear and damage.
- Check the lock-up control valve in the regulator valve body for free movement, and check the valve spring for wear and damage.
|
| Torque converter clutch does not operate smoothly |
- Shift solenoid valve D defective
- A/T clutch pressure control solenoid valve C defective
- Torque converter clutch piston defective
- Torque converter check valve defective
- Lock-up shift valve defective
- Lock-up control valve defective
- Lock-up timing valve defective
|
- Inspect the shift solenoid valve function with the HDS (see SHIFT SOLENOID VALVE TEST, REPLACEMENT, AND SHIFT SOLENOID WIRE HARNESS REPLACEMENT
).
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check the line pressure (see PRESSURE TEST
).
- Replace the torque converter.
- Check the torque converter check valve, the lock-up shift valve, and the lock-up timing valve in the main valve body for free movement, and check the valve springs for wear and damage.
- Check the lock-up control valve in the regulator valve body for free movement, and check the valve spring for wear and damage.
|
| Torque converter clutch does not engage |
- Shift solenoid valve D defective
- A/T clutch pressure control solenoid valve C defective
- Input shaft (mainshaft) speed sensor defective
- Output shaft (countershaft) speed sensor defective
- Shift cable broken or out of adjustment
- Connection between the shift cable and the transmission or shift lever is worn
- Foreign material in separator plate orifice
- Torque converter clutch piston defective
- Torque converter check valve defective
- Lock-up shift valve defective
- Lock-up control valve defective
- Lock-up timing valve defective
|
- Inspect the shift solenoid valve function with the HDS (see SHIFT SOLENOID VALVE TEST, REPLACEMENT, AND SHIFT SOLENOID WIRE HARNESS REPLACEMENT
).
- Check for a seized shift solenoid valve, and inspect the O-rings.
- Inspect the A/T clutch pressure control solenoid valve C with the HDS (see A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C TEST
).
- Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, and the O-rings for wear and damage.
- Check for a loose shift cable at the shift lever and the selector control lever.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it, and clean the separator plate orifice.
- Check the speed sensor installation.
- Inspect the sensor and O-ring for wear and damage.
- Check the line pressure (see PRESSURE TEST
).
- Replace the torque converter.
- Check the torque converter check valve and the lock-up shift valve in the main valve body for free movement, and check the valve springs for wear and damage.
- Check the lock-up control valve in the regulator valve body for free movement, and check the valve spring for wear and damage.
|
| A/T gear position indicator does not indicate shift lever positions |
- Transmission range switch defective or out of adjustment
- Shift cable broken or out of adjustment
- Connection between the shift cable and the transmission or shift lever is worn
|
- Inspect the transmission range switch. If the transmission range switch fails the inspection, replace the switch. If the inspection is OK, check for proper transmission range switch installation, and adjust the shift cable.
- Check for a loose shift cable at the shift lever and the selector control lever.
|
| Speedometer and odometer do not work |
Output shaft (countershaft) speed sensor defective |
- Check the speed sensor installation.
- Inspect the sensor O-ring for wear and damage.
|
| Engine does not rev to high rpm, and the transmission upshifts at low rpm (engine at normal operating temperature) |
VTEC rocker arms defective |
- Check the engine rocker arms.
|