2009 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Problem Symptoms Table

HINT: 

  • Use the table below to help determine the cause of the problem symptoms. If multiple suspected areas are listed, 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.
PROBLEM SYMPTOMS (1 OF 2)

Symptom Suspected Area See
No up-shift (1st -> 2nd) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL5 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (2nd -> 3rd) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL3 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (3rd -> 4th) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL4 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (4th -> 5th) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (5th -> 6th) Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL4 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (6th -> 7th) Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL3 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No up-shift (7th -> 8th) Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL5 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (8th -> 7th) Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL3 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (7th -> 6th) Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL4 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (6th -> 5th) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (5th -> 4th) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL4 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (4th -> 3rd) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL3 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (3rd -> 2nd) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL5 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No down-shift (2nd -> 1st) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up or no lock-up off Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
Shift solenoid valve SL circuit* Refer to DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
Stop light switch circuit* Refer to DTC P0724: Brake Switch "B" Circuit High
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
Shift solenoid valve SL circuit* Refer to DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
Speed sensor NT circuit* Refer to DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal
Stop light switch circuit* Refer to DTC P0724: Brake Switch "B" Circuit High
Engine coolant temperature sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No lock-up off Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
Shift solenoid valve SL circuit* Refer to DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Shift point too high or too low Shift solenoid valve SLT circuit* Refer to DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
Speed sensor NT circuit* Refer to DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal
Speed sensor NC3 circuit* Refer to DTC P2765: Input / Turbine Speed Sensor "B" Circuit; DTC P2767: Input / Turbine Speed Sensor "B" Circuit No Signal
Speed sensor SP2 circuit* Refer to DTC P0500: Vehicle Speed Sensor "A"; DTC P0502: Vehicle Speed Sensor "A" Circuit Low; DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High
ATF temperature sensor circuit* Refer to DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input
Pattern select (SPORT) switch circuit Refer to Pattern Select Switch Circuit
Throttle position sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 4th from 3rd occurs while engine is cold Engine coolant temperature sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 5th from 4th occurs while engine is cold Engine coolant temperature sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 6th from 5th occurs while engine is cold Engine coolant temperature sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Up-shift to 8th from 7th occurs while engine is cold Engine coolant temperature sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No gear change by moving shift lever to "+" or "-" while in M Transmission control switch circuit Refer to Transmission Control Switch Circuit
Shift paddle switch circuit Refer to Shift Paddle Switch Circuit
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No gear change by operating the "+" or "-" paddle switch Shift paddle switch circuit Refer to Shift Paddle Switch Circuit
Transmission control switch circuit Refer to Transmission Control Switch Circuit
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (N -> D) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SLT circuit* Refer to DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
Speed sensor NT circuit* Refer to DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (N -> R) Shift solenoid valve SL4 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SLT circuit* Refer to DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (lock-up) Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
Shift solenoid valve SL circuit* Refer to DTC P2769: Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL); DTC P2770: Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
Speed sensor NT circuit* Refer to DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal
Speed sensor NC3 circuit* Refer to DTC P2765: Input / Turbine Speed Sensor "B" Circuit; DTC P2767: Input / Turbine Speed Sensor "B" Circuit No Signal
Speed sensor SP2 circuit* Refer to DTC P0500: Vehicle Speed Sensor "A"; DTC P0502: Vehicle Speed Sensor "A" Circuit Low; DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Harsh engagement (any driving position) Shift solenoid valve SL1 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL2 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL3 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL4 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SL5 circuit* Refer to DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2); DTC P0798: Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3); DTC P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4); DTC P2819: Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
Shift solenoid valve SLT circuit* Refer to DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
Speed sensor NT circuit* Refer to DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal
Throttle position sensor circuit* Refer to DIAGNOSTIC TROUBLE CODE CHART
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Poor acceleration Shift solenoid valve SLT circuit* Refer to DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
Pattern select (SNOW) switch circuit Refer to Pattern Select Switch Circuit
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No engine braking TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
No kick-down Kick down switch circuit Refer to Kick Down Switch Circuit
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Engine stalls when starting off or stopping Shift solenoid valve SLU circuit* Refer to DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
SNOW does not operate Shift solenoid valve SLT circuit* Refer to DTC P2716: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
Pattern select (SNOW) switch circuit Refer to Pattern Select Switch Circuit
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
Shifting malfunction Park/neutral position switch circuit* Refer to DTC P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
Transmission control switch circuit Refer to Transmission Control Switch Circuit
ECM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
TCM Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
PROBLEM SYMPTOMS (2 OF 2)

Symptom Suspected Area See
Vehicle does not move with shift lever in any forward position or reverse position Transmission control rod Refer to ADJUSTMENT
Manual valve Refer to COMPONENTS
Parking lock pawl Refer to COMPONENTS
Rear planetary ring gear assembly Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Vehicle does not move with shift lever in R Valve body assembly Refer to REMOVAL
Reverse clutch (C4) Refer to COMPONENTS
No. 2 brake (B2) Refer to COMPONENTS
No up-shift (1st -> 2nd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
No up-shift (2nd -> 3rd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No up-shift (3rd -> 4th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No up-shift (4th -> 5th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 2 clutch (C2) Refer to COMPONENTS
No up-shift (5th -> 6th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No up-shift (6th -> 7th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No up-shift (7th -> 8th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
No down-shift (8th -> 7th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No down-shift (7th -> 6th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No down-shift (6th -> 5th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 2 clutch (C2) Refer to COMPONENTS
No down-shift (5th -> 4th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No down-shift (4th -> 3rd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No down-shift (3rd -> 2nd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
No down-shift (2nd -> 1st) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
No lock-up or no lock-up off Valve body assembly Refer to REMOVAL
Torque converter clutch Refer to INSPECTION
Harsh engagement (N -> D) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (N -> R) Valve body assembly Refer to REMOVAL
Reverse clutch (C4) Refer to COMPONENTS
No. 2 brake (B2) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (lock-up) Valve body assembly Refer to REMOVAL
Torque converter clutch Refer to INSPECTION
Harsh engagement (1st -> 2nd -> 3rd -> 4th -> 5th -> 6th -> 7th -> 8th) Valve body assembly Refer to REMOVAL
Harsh engagement (1st -> 2nd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (2nd -> 3rd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (3rd -> 4th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (4th -> 5th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 2 clutch (C2) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (5th -> 6th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (6th -> 7th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Harsh engagement (7th -> 8th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Slip or shudder (shift lever in R) Reverse clutch (C4) Refer to COMPONENTS
No. 2 brake (B2) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (1st) Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 one-way clutch (F1) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (2nd) Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (3rd) Forward multiple clutch (C1) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (4th) Forward multiple clutch (C1) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (5th) Forward multiple clutch (C1) Refer to COMPONENTS
No. 2 clutch (C2) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (6th) No. 2 clutch (C2) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (7th) No. 2 clutch (C2) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
Slip or shudder (8th) No. 2 clutch (C2) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
Torque converter clutch Refer to INSPECTION
No engine braking (1st) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 2 brake (B2) Refer to COMPONENTS
No engine braking (2nd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 1 brake (B1) Refer to COMPONENTS
No engine braking (3rd) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 3 clutch (C3) Refer to COMPONENTS
No engine braking (4th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No engine braking (5th) Valve body assembly Refer to REMOVAL
Forward multiple clutch (C1) Refer to COMPONENTS
No. 2 clutch (C2) Refer to COMPONENTS
No engine braking (6th) Valve body assembly Refer to REMOVAL
No. 2 clutch (C2) Refer to COMPONENTS
Reverse clutch (C4) Refer to COMPONENTS
No kick-down Valve body assembly Refer to REMOVAL
Shift point too high or too low Valve body assembly Refer to REMOVAL
Poor acceleration (all positions) Valve body assembly Refer to REMOVAL
Torque converter clutch Refer to INSPECTION
Engine stalls when starting off or stopping Valve body assembly Refer to REMOVAL
Torque converter clutch Refer to INSPECTION
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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