Problem Symptoms Table
HINT:
- Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- The Matrix Chart is divided into 2 chapters. When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to 2, proceed as instructed.
- If the instruction "Proceed to next circuit inspection shown in problem symptoms table" is given in the flowchart for each circuit, proceed to the next suspected area in the table.
- If the problem still occurs even though there are no malfunctions in any of the circuits, check the TCM and replace it if necessary.
- *: When the circuit is defective, a DTC may be output.
- CHAPTER 1: ELECTRONIC CIRCUIT MATRIX CHART ELECTRONIC CIRCUIT MATRIX CHART
Symptom Suspected Area Refer To No up-shift(1st -> 2nd) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL5 circuit P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (2nd -> 3rd) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL3 circuit P0748, P0778, P0798,P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (3rd -> 4th) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL4 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (4th -> 5th) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (5th -> 6th) Shift solenoid valve SL2 circuit* P0748, P0778, P2810, P2819 Shift solenoid valve SL4 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (6th -> 7th) Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL3 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No up-shift (7th -> 8th) Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL5 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (8th -> 7th) Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL3 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (7th -> 6th) Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL4 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (6th -> 5th) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (5th -> 4th) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL4 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (4th -> 3rd) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL3 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (3rd -> 2nd) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL5 circuit* P0748, P0778, P0798, P2810 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No down-shift (2nd -> 1st) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No lock-up or no lock-up off Shift solenoid valve SLU circuit* P2759 Shift solenoid valve SL circuit* P2769, P2770 Stop light switch circuit* P0724 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No lock-up Shift solenoid valve SLU circuit* P2759 Shift solenoid valve SL circuit* P2769, P2770 Speed sensor NT circuit* P0715 Stop light switch circuit* P0724 Engine coolant temperature sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No lock-up off Shift solenoid valve SLU circuit* P2759 Shift solenoid valve SL circuit* P2769, P2770 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Shift point too high or too low Shift solenoid valve SLT circuit* P2716 Speed sensor NT circuit* P0715 Speed sensor NC3 circuit* P2765 Speed sensor SP2 circuit* P0500, P0502, P0503 ATF temperature sensor circuit* P0710, P0712, P0713 Pattern select (PWR) switch circuit PATTERN SELECT SWITCH CIRCUIT Throttle position sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 4th from 3rd while engine is cold Engine coolant temperature sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 5th from 4th while engine is cold Engine coolant temperature sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 6th from 5th while engine is cold Engine coolant temperature sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Up-shift to 8th from 7th while engine Is cold Engine coolant temperature sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No gear change by shifting into "+" or "-" while shift lever on S Transmission control switch circuit TRANSMISSION CONTROL SWITCH CIRCUIT TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (N -> D) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SLT circuit* DTC P2716 Speed sensor NT circuit* P0715, P0717 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (N -> R) Shift solenoid valve SL4 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SLT circuit* P2716 Shift solenoid valve SLU circuit* P2759 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (lock-up) Shift solenoid valve SLU circuit* P2759 Shift solenoid valve SL circuit* P2769, P2770 Speed sensor NT circuit* P0715, P0717 Speed sensor NC3 circuit* P0715, P0717 Speed sensor SP2 circuit* P0500, P0502, P0503 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (any driving position) Shift solenoid valve SL1 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL2 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL3 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL4 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SL5 circuit* P0748, P0778, P0798, P2810, P2819 Shift solenoid valve SLT circuit* P2716 Shift solenoid valve SLU circuit* P2759 Speed sensor NT circuit* P0715, P0717 Throttle position sensor circuit* DIAGNOSTIC TROUBLE CODE CHART TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Poor acceleration Shift solenoid valve SLT circuit* P2716 Pattern select (SNOW) switch circuit PATTERN SELECT SWITCH CIRCUIT TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No engine brake TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE No kick-down TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Engine stalls when starting off or stopping Shift solenoid valve SLU circuit* P2759 TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE ECT SNOW does not operate Shift solenoid valve SLT circuit* P2716 Pattern select (SNOW) switch circuit PATTERN SELECT SWITCH CIRCUIT TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Malfunction in shifting Park/neutral position switch circuit* P0705 Transmission control switch circuit TRANSMISSION CONTROL SWITCH CIRCUIT TCM ELECTRONIC CIRCUIT INSPECTION PROCEDURE Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th -> 6th -> 7th -> 8th) Shift solenoid valve SR circuit* P098, P0986 Slip or shudder (5th -> 6th and 6th -> 5th) Shift solenoid valve SR circuit* P0985, P0986 - CHAPTER 2: ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIR ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIR SYMPTOM CHART
Symptom Suspected Area Refer To Vehicle does not move with shift lever in any forward position and reverse position Transmission control rod FLOOR SHIFT ASSEMBLY Manual valve AUTOMATIC TRANSMISSION UNIT Parking lock pawl AUTOMATIC TRANSMISSION UNIT Rear planetary ring gear assembly AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Vehicle does not move with shift lever on R Valve body assembly VALVE BODY ASSEMBLY Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No. 2 brake (B2) AUTOMATIC TRANSMISSION UNIT No up-shift(1st -> 2nd) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT No up-shift (2nd -> 3rd) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No up-shift (3rd -> 4th) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No up-shift (4th -> 5th) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No up-shift (5th -> 6th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No up-shift (6th -> 7th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No up-shift (7th -> 8th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT No down-shift (8th -> 7th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No down-shift (7th -> 6th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No down-shift (6th -> 5th) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No down-shift (5th -> 4th) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No down-shift (4th -> 3rd) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No down-shift (3rd -> 2nd) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT No down-shift (2nd -> 1st) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT No lock-up or no lock-up off Valve body assembly VALVE BODY ASSEMBLY Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Harsh engagement (N -> D) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (N -> R) Valve body assembly VALVE BODY ASSEMBLY Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No. 2 brake (B2) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (lock-up) Valve body assembly VALVE BODY ASSEMBLY Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th -> 6th -> 7th -> 8th) Valve body assembly VALVE BODY ASSEMBLY Harsh engagement (1st -> 2nd) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (2nd -> 3rd) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (3rd -> 4th) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (4th -> 5th) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (5th -> 6th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (6th -> 7th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Harsh engagement (7th -> 8th) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Slip or shudder (shift lever on R) Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No. 2 brake (B2) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (1st) Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 one-way clutch (F1) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (2nd) Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (3rd) Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (4th) Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (5th) Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (6th) No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (7th) No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Slip or shudder (8th) No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE No engine braking (1st: shift lever on 1) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 2 brake (B2) AUTOMATIC TRANSMISSION UNIT No engine braking (2nd: shift lever on 2) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 1 brake (B1) AUTOMATIC TRANSMISSION UNIT No engine braking (3rd: shift lever on 3) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 3 clutch (C3) AUTOMATIC TRANSMISSION UNIT No engine braking (4th: shift lever on 4) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No engine braking (5th: shift lever on 5) Valve body assembly VALVE BODY ASSEMBLY Forward multiple clutch (C1) AUTOMATIC TRANSMISSION UNIT No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT No engine braking (6th: shift lever on 6) Valve body assembly VALVE BODY ASSEMBLY No. 2 clutch (C2) AUTOMATIC TRANSMISSION UNIT Reverse clutch (C4) AUTOMATIC TRANSMISSION UNIT No kick-down Valve body assembly VALVE BODY ASSEMBLY Shift point too high or too low Valve body assembly VALVE BODY ASSEMBLY Poor acceleration (all positions) Valve body assembly VALVE BODY ASSEMBLY Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE Engine stalls when starting off or stopping Valve body assembly VALVE BODY ASSEMBLY Torque converter clutch TORQUE CONVERTER AND DRIVE PLATE