Road Test

NOTE: If shift lever cannot be moved from "P" position with brake pedal depressed and accelerator pedal at idle position, check shift interlock system. See M5DA ELECTRONIC CONTROLS article.

Warm engine to normal operating temperature. Apply parking brake and block wheels. Start engine. Move shift lever to "D4" position while depressing brake pedal. Depress accelerator pedal and release it suddenly. Engine should not stall.
Repeat step 1) with shift lever in "D" position. Ensure engine does not stall. Manufacturer recommends monitoring of Throttle Position (TP) sensor voltage when performing road test to ensure proper throttle opening for verifying shift points and lock-up of torque converter.
Remove door sill molding and lower dash panel on passenger's side and remove small cover on passenger's side kick panel. Pull carpet back for access to the Powertrain Control Module (PCM), located on passenger's side, below carpet. See Fig 1 .
Remove PCM cover located above PCM. Ensure ignition is off.

Fig 1: Measuring TP Sensor Voltage
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install Backprobe Test Set (07SAZ-001000A) or equivalent between PCM and DVOM leads. See Fig 1 . Using DVOM, with positive lead at terminal D6 and negative lead at terminal A26. See Fig 1 . Ensure digital volt-ohmmeter is set for measuring voltage.
Road test vehicle and check for abnormal noise and clutch slippage. See CLUTCH APPLICATION table for clutch engagement.
Ensure upshift and downshift points and torque converter lock-up are correct in relation to throttle position sensor voltage or throttle opening and vehicle speed with shift lever in "D4" position. See TRANSAXLE UPSHIFT SPECIFICATIONS and TRANSAXLE DOWNSHIFT SPECIFICATIONS tables.
With shift lever in "D4" position, accelerate to about 35 MPH so transaxle is in 4th gear. Move shift lever to "2" position. Ensure engine braking occurs.
CAUTION: DO NOT shift from "D4" to "2" at speeds over 62 MPH or transaxle may be damaged.
Place shift lever in "1" position. Accelerate from a stop at full throttle. Check for abnormal noise or clutch slippage. Upshifts and downshifts should not occur in this shift lever position.
Place shift lever in "2" position. Accelerate from a stop at full throttle. Check for abnormal noise or clutch slippage. Upshifts and downshifts should not occur in this shift lever position.
Place shift lever in "R" position. Accelerate from a stop at full throttle. Check for abnormal noise or clutch slippage.
Park vehicle on a slope. Apply parking brake. Place shift lever in "P" position. Release parking brake. Ensure vehicle does not move. If vehicle moves, check for defective shift cable or parking components.
Ensure ignition is off. Remove test harness and reinstall electrical connectors, PCM cover, carpet and door sill molding.

CLUTCH APPLICATION

Shift Lever Position

Elements In Use

"P" & "N"

No Clutches Applied

"R"

Reverse Clutch

"D4"

1st Gear

1st Clutch

2nd Gear

⁽¹⁾ 2nd Clutch

3rd Gear

⁽²⁾ 3rd Clutch

4th Gear

⁽²⁾ 4th Clutch

"D"

1st Gear

1st Clutch

2nd Gear

⁽¹⁾ 2nd Clutch

3rd Gear

⁽²⁾ 3rd Clutch

"2"

1st-Hold Clutch, 2nd Clutch

"1"

1st-Hold Clutch, 1st Clutch

⁽¹⁾	The 1st clutch engages, but driving power is not transmitted, as 1st gear one-way clutch slips.

⁽²⁾	The 1st and 2nd clutches engage, but driving power is not transmitted, as 2nd gear one-way clutch slips.

TRANSAXLE UPSHIFT SPECIFICATIONS

"D4" Position & Condition	1st-2nd Gear	2nd-3rd Gear	3rd-4th Gear	Lock-Up Clutch On
Throttle Position Sensor Voltage Is .822-.878 Volt & Coasting Downhill From Stop	10-13 MPH	21-24 MPH	32-37 MPH	21-25 MPH
Throttle Position Sensor Voltage Is 2.175-2.325 Volts & Accelerating From Stop	25-29 MPH	48-53 MPH	73-79 MPH	91-97 MPH
Full Throttle & Accelerating From Stop	38-44 MPH	70-78 MPH	103-114 MPH	95-106 MPH

TRANSAXLE DOWNSHIFT SPECIFICATIONS

"D4" Position & Condition

Lock-Up Clutch Off

4th-3rd Gear

3rd-2nd Gear

2nd-1st Gear

TPS Voltage Is .822-.878v & Coasting Or Braking To A Stop ⁽¹⁾

21-25 MPH

N/A

16-19 MPH

6-9 MPH

TPS Volts: 2.175-2.325v & Vehicle Slowed By Grade Or Load

72-78 MPH

N/A

Full Throttle & Vehicle Slowed By Grade/Load

93-104 MPH

92-103 MPH

59-66 MPH

28-33 MPH

⁽¹⁾	Throttle Position Sensor Voltage is .725-.775 for lock-up.