Problem Symptoms Table

HINT:

If a normal code is displayed during the DTC check but the trouble still occurs, check the circuits for each symptom in the order given in the charts and proceed to troubleshooting.

The Matrix Chart is divided into 3 chapters.

• If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check.
• If the trouble still occurs even though there are no abnormalities in any of the other circuits, then check and replace the ECM.

1. CHAPTER 1: ELECTRONIC CIRCUIT MATRIX CHART 
   ELECTRONIC CIRCUIT MATRIX
   
   

   Symptom	Suspect Area	Go To
   No up-shift (A particular gear, from 1st to 4th gear, is not up-shifted)	ECM	INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No up-shift (4th <--> 5th)	E-shift main switch circuit ECM	DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No down-shift (5th <--> 4th)	E-shift main switch circuit ECM	DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No down-shift (A particular gear, from 1st to 4th gear, is not up-shifted)	ECM	INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No lock-up	ECM	INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No lock-up off	ECM	INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   Shift point too high or too low	Pattern select switch circuit ECM	PATTERN SELECT SWITCH CIRCUIT  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   Up-shift to 5th from 4th while shift lever is M position	E-shift main switch circuit ECM	DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   Up-shift to 5th from 4th while engine is cold	ECM	INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No pattern select	Pattern select switch circuit ECM	PATTERN SELECT SWITCH CIRCUIT  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   Engine stalls when starting off or stopping	ECM	INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No 2nd start	Pattern select switch circuit ECM	PATTERN SELECT SWITCH CIRCUIT  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)
   No E-shift system	E-shift main switch circuit. Transmission shift switch circuit Pattern select switch circuit ECM	DTC P0705: TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT)  TRANSMISSION SHIFT SWITCH CIRCUIT  PATTERN SELECT SWITCH CIRCUIT  INSPECTION, Connectors, Terminal pins, Wiring Harness (Open or Short Circuits)

2. CHAPTER 2: ON-VEHICLE REPAIR 
   CHAPTER 2: ON-VEHICLE REPAIR (DIAGNOSTICS)
   
   

   Symptom	Suspect Area	Go To
   Vehicle does not move in any forward position and reverse positions	Transmission control rod Manual valve Parking lock pawl Off-vehicle repair matrix chart	PRE-CHECK  (1) (1) -
   Vehicle does not move in R position	Reverse control valve Off-vehicle repair matrix chart	(1) -
   Vehicle does not move in particular position or positions (except R position)	Off-vehicle repair matrix chart	-
   No up-shift (1st --> 2nd)	1-2 shift valve Off-vehicle repair matrix chart	(1) -
   No up-shift (2nd --> 3rd)	2-3 shift valve Off-vehicle repair matrix chart	(1) -
   No up-shift (3rd --> 4th)	3-4 shift valve Off-vehicle repair matrix chart	(1) -
   No up-shift (4th --> 5th)	4-5 shift valve Off-vehicle repair matrix chart	(1) -
   No down-shift (5th --> 4th)	4-5 shift valve Off-vehicle repair matrix chart	(1) -
   No down-shift (4th --> 3rd)	3-4 shift valve Off-vehicle repair matrix chart	(1) -
   No down-shift (3rd --> 2nd)	2-3 shift valve Off-vehicle repair matrix chart	(1) -
   No down-shift (2nd --> 1st)	1-2 shift valve Off-vehicle repair matrix chart	(1) -
   No lock-up or No lock-up off	Lock-up control valve Lock-up relay valve Off-vehicle repair matrix chart	(1) (1) -
   Harsh engagement (N --> D)	Accumulator control valve Solenoid modulator valve C1 accumulator Orifice control valve Off-vehicle repair matrix chart	(1) (1) (1) (1) -
   Harsh engagement (Lock-up)	Lock-up control valve Lock-up relay valve Solenoid relay valve Off-vehicle repair matrix chart	(1) (1) (1) -
   Harsh engagement (N --> R)	Accumulator control valve C2 accumulator Solenoid modulator valve Off-vehicle repair matrix chart	(1) (1) (1) -
   Harsh engagement (2 --> L)	Coast brake control valve	(1)
   Harsh engagement (2nd --> 3rd --> 4th --> 5th)	Accumulator control valve Solenoid modulator valve	(1) (1)
   Harsh engagement (1st --> 2nd)	Solenoid modulator valve B3 A control valve B2 release control valve Solenoid relay valve Off-vehicle repair matrix chart	(1) (1) (1) (1) -
   Harsh engagement (2nd --> 3rd)	Accumulator control valve Solenoid modulator valve B2 accumulator B3 control valve B2 release control valve Solenoid relay valve Off-vehicle repair matrix chart	(1) (1) (1) (1) (1) (1) -
   Harsh engagement (3rd --> 4th)	Accumulator control valve Solenoid modulator valve C2 accumulator Off-vehicle repair matrix chart	(1) (1) (1) -
   Harsh engagement (4th --> 5th)	Accumulator control valve Solenoid modulator valve Bo accumulator Off-vehicle repair matrix chart	(1) (1) (1) -
   Harsh engagement (5th --> 4th)	Accumulator control valve Solenoid modulator valve Co accumulator Off-vehicle repair matrix chart	(1) (1) (1) -
   Slip or shudder (Forward and reverse)	Transmission control rod Oil strainer Pressure relief valve Off-vehicle repair matrix chart	PRE-CHECK  (1) (1) -
   Slip or shudder (Particular position)	Transmission control rod Off-vehicle repair matrix chart	PRE-CHECK  -
   No engine braking (1st: L position)	Coast brake control valve Off-vehicle repair matrix chart	(1) -
   No engine braking (2nd: 2 position)	Coast brake control valve Off-vehicle repair matrix chart	(1) -
   (1) See OVERHAUL - A-650E

3. CHAPTER 3: OFF-VEHICLE REPAIR 
   CHAPTER 3: OFF-VEHICLE REPAIR
   
   

   Symptom	Suspect Area	Go To
   Vehicle does not move in any forward position and reverse positions	O/D one-way clutch (F0 ) O/D direct clutch (C0 ) O/D planetary gear unit Torque converter clutch	(1) (1) (1) (2)
   Vehicle does not move in R position	Center and rear planetary gear unit Direct clutch (C2 ) 1st & reverse brake (B4 ) O/D brake (B0 )	(1) (1) (1) (1)
   No up-shift (1st --> 2nd)	2nd brake (B3 )	(1)
   No up-shift (2nd --> 3rd)	3rd brake (B2 ) One-way clutch No.1 (F1 )	(1) (1)
   No up-shift (3rd --> 4th)	Direct clutch	(1)
   No up-shift (4th --> 5th)	O/D brake (B0	(1)
   No lock-up or No lock-up off	Torque converter clutch	(2)
   Harsh engagement (N --> D)	Forward clutch (C1 ) O/D one-way clutch (F0 ) One-way clutch No.2 (F2 )	(1) (1) (1)
   Harsh engagement (N --> R)	Direct clutch (C2 ) O/D brake (B0 ) 1st & reverse brake (B4 )	(1) (1) (1)
   Harsh engagement (1 --> 2)	2nd brake (B3 )	*
   Harsh engagement (2 --> 3)	3rd brake (B2 ) 2nd brake (B3 ) One-way clutch No.1 (F1 )	(1) (1) (1)
   Harsh engagement (3 --> 4)	Direct clutch (C2 )	(1)
   Harsh engagement (4 --> 5th)	O/D brake (B0 ) O/D direct clutch (C0 )	(1) (1)
   Harsh engagement (Lock-up)	Torque converter clutch	(2)
   Slip or shudder (Forward and reverse: After warm-up)	O/D one-way clutch (F0 ) O/D direct clutch (C0 ) Torque converter clutch	(1) (1) (2)
   Slip or shudder (Particular position: Just after engine starts)	Torque converter clutch	(2)
   Slip or shudder (R position)	Direct clutch (C2 ) O/D brake (B0 ) 1st & reverse brake (B4 )	(1) (1) (1)
   Slip or shudder (1st)	Forward clutch (C1 ) No. 2 one-way clutch (F2 )	(1) (1)
   Slip or shudder (2nd)	2nd brake (B3 )	*
   Slip or shudder (3rd)	3rd coast brake (B1 ) 3rd brake (B2 ) One-way clutch No.1 (F1 )	(1) (1) (1)
   Slip or shudder (4th)	Direct clutch	(1)
   Slip or shudder (5th)	O/D brake (Bo)	(1)
   No engine braking (1st ~ 4th: D position)	O/D direct clutch (C0 )	(1)
   No engine braking (1st: L position)	1st & reverse brake (B4 )	(1)
   No engine braking (2nd: 2 position)	2nd brake (B3 )	(1)
   No engine braking (3rd: 3 position)	3rd coast brake (B1 )	(1)
   Poor acceleration (All positions)	Torque converter clutch	(2)
   Poor acceleration (5th)	O/D brake (B0 ) O/D planetary gear unit	(1) (1)
   Engine stalls when starting off or stopping	Torque converter clutch	(2)
   (1) See OVERHAUL - A-650E (2) See TORQUE CONVERTER