Tech Tips
Use the table below to help determine the cause of 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 Suspected Area 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 ECM and replace it if necessary.
*: When the circuit is defective, a DTC may be output.
| Symptom | Suspected Area | Link |
|---|---|---|
| No up-shift (1st to 2nd) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL5) valve circuit* | ||
| ECM | ||
| No up-shift (2nd to 3rd) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL3) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No up-shift (3rd to 4th) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL4) valve circuit* | ||
| ECM | ||
| No up-shift (4th to 5th) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL2) valve circuit* | ||
| ECM | ||
| No up-shift (5th to 6th) | Solenoid (SL2) valve circuit* | |
| Solenoid (SL4) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No up-shift (6th to 7th) | Solenoid (SL2) valve circuit* | |
| Solenoid (SL3) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No up-shift (7th to 8th) | Solenoid (SL2) valve circuit* | |
| Solenoid (SL5) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No down-shift (8th to 7th) | Solenoid (SL2) valve circuit* | |
| Solenoid (SL3) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No down-shift (7th to 6th) | Solenoid (SL2) valve circuit* | |
| Solenoid (SL4) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No down-shift (6th to 5th) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL2) valve circuit* | ||
| ECM | ||
| No down-shift (5th to 4th) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL4) valve circuit* | ||
| ECM | ||
| No down-shift (4th to 3rd) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL3) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| ECM | ||
| No down-shift (3rd to 2nd) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL5) valve circuit* | ||
| ECM | ||
| No down-shift (2nd to 1st) | Solenoid (SL1) valve circuit* | |
| ECM | ||
| No lock-up or no lock-up off | Solenoid (SLU) valve circuit* | |
| Transmission revolution sensor (NT) circuit* | ||
| Stop light switch circuit* | ||
| ECM | ||
| No lock-up | Solenoid (SLU) valve circuit* | |
| Transmission revolution sensor (NT) circuit* | ||
| Stop light switch circuit* | ||
| Engine coolant temperature sensor circuit (w/ Canister Pump Module)* | ||
| Engine coolant temperature sensor circuit (w/o Canister Pump Module)* | ||
| ECM | ||
| No lock-up off | Solenoid (SLU) valve circuit* | |
| ECM | ||
| Shift point too high or too low | Solenoid (SLT) valve circuit* | |
| Transmission revolution sensor (NT) circuit* | ||
| Transmission revolution sensor (NC3) circuit* | ||
| Transmission revolution sensor (SP2) circuit* | ||
| ATF temperature sensor circuit* | ||
| Throttle position sensor circuit (w/ Canister Pump Module)* | ||
| Throttle position sensor circuit (w/o Canister Pump Module)* | ||
| Pattern select switch snow mode circuit (w/ Canister Pump Module) | ||
| Pattern select switch snow mode circuit (w/o Canister Pump Module) | ||
| ECM | ||
| Up-shift to 4th from 3rd occurs while engine is cold | Engine coolant temperature sensor circuit (w/ Canister Pump Module)* | |
| Engine coolant temperature sensor circuit (w/o Canister Pump Module)* | ||
| ECM | ||
| Up-shift to 5th from 4th occurs while engine is cold | Engine coolant temperature sensor circuit (w/ Canister Pump Module)* | |
| Engine coolant temperature sensor circuit (w/o Canister Pump Module)* | ||
| ECM | ||
| Up-shift to 6th from 5th occurs while engine is cold | Engine coolant temperature sensor circuit (w/ Canister Pump Module)* | |
| Engine coolant temperature sensor circuit (w/o Canister Pump Module)* | ||
| ECM | ||
| Up-shift to 8th from 7th occurs while engine is cold | Engine coolant temperature sensor circuit (w/ Canister Pump Module)* | |
| Engine coolant temperature sensor circuit (w/o Canister Pump Module)* | ||
| ECM | ||
| No gear change by moving shift lever to "+" or "-" while in M | Transmission control switch circuit | |
| ECM | ||
| No gear change by operating the "+" or "-" paddle switch | Shift paddle switch circuit | |
| Transmission control switch circuit | ||
| ECM | ||
| Harsh engagement (N to D) | Solenoid (SL1) valve circuit* | |
| Solenoid (SLT) valve circuit* | ||
| Transmission revolution sensor (NT) circuit* | ||
| ECM | ||
| Harsh engagement (N to R) | Solenoid (SL4) valve circuit* | |
| Solenoid (SC2) valve circuit* | ||
| Solenoid (SLT) valve circuit* | ||
| Solenoid (SLU) valve circuit* | ||
| ECM | ||
| Harsh engagement (lock-up) | Solenoid (SLU) valve circuit* | |
| Transmission revolution sensor (NT) circuit* | ||
| Transmission revolution sensor (NC3) circuit* | ||
| Transmission revolution sensor (SP2) circuit* | ||
| ECM | ||
| Harsh engagement (any driving position) | Solenoid (SL1) valve circuit* | |
| Solenoid (SL2) valve circuit* | ||
| Solenoid (SL3) valve circuit* | ||
| Solenoid (SL4) valve circuit* | ||
| Solenoid (SL5) valve circuit* | ||
| Solenoid (SC1) valve circuit* | ||
| Solenoid (SLT) valve circuit* | ||
| Solenoid (SLU) valve circuit* | ||
| Transmission revolution sensor (NT) circuit* | ||
| Throttle position sensor circuit (w/ Canister Pump Module)* | ||
| Throttle position sensor circuit (w/o Canister Pump Module)* | ||
| ECM | ||
| Poor acceleration | Solenoid (SLT) valve circuit* | |
| Pattern select switch snow mode circuit (w/ Canister Pump Module) | ||
| Pattern select switch snow mode circuit (w/o Canister Pump Module) | ||
| ECM | ||
| No engine braking | ECM | |
| No kick-down | Kick down switch circuit | |
| ECM | ||
| Engine stalls when starting off or stopping | Solenoid (SLU) valve circuit* | |
| ECM | ||
| SNOW mode does not change | Pattern select switch snow mode circuit (w/ Canister Pump Module) | |
| Pattern select switch snow mode circuit (w/o Canister Pump Module) | ||
| ECM | ||
| Shifting malfunction | Park/neutral position switch assembly circuit* | |
| Transmission control switch circuit | ||
| ECM |
| Symptom | Suspected Area | Link |
|---|---|---|
| Vehicle does not move with shift lever in any forward position or reverse position | Transmission control rod | |
| Manual valve | ||
| Parking lock pawl | ||
| Rear planetary ring gear assembly | ||
| Torque converter assembly | ||
| Vehicle does not move with shift lever in R | Transmission valve body assembly | |
| Reverse clutch (C4) | ||
| No. 2 brake (B2) | ||
| No up-shift (1st to 2nd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 1 brake (B1) | ||
| No up-shift (2nd to 3rd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 3 clutch (C3) | ||
| No up-shift (3rd to 4th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| Reverse clutch (C4) | ||
| No up-shift (4th to 5th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 2 clutch (C2) | ||
| No up-shift (5th to 6th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| Reverse clutch (C4) | ||
| No up-shift (6th to 7th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| No. 3 clutch (C3) | ||
| No up-shift (7th to 8th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| No. 1 brake (B1) | ||
| No down-shift (8th to 7th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| No. 3 clutch (C3) | ||
| No down-shift (7th to 6th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| Reverse clutch (C4) | ||
| No down-shift (6th to 5th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 2 clutch (C2) | ||
| No down-shift (5th to 4th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| Reverse clutch (C4) | ||
| No down-shift (4th to 3rd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 3 clutch (C3) | ||
| No down-shift (3rd to 2nd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 1 brake (B1) | ||
| No down-shift (2nd to 1st) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 1 one-way clutch (F1) | ||
| No lock-up or no lock-up off | Transmission valve body assembly | |
| Torque converter assembly | ||
| Harsh engagement (N to D) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (N to R) | Transmission valve body assembly | |
| Reverse clutch (C4) | ||
| No. 2 brake (B2) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (lock-up) | Transmission valve body assembly | |
| Torque converter assembly | ||
| Harsh engagement (1st to 2nd to 3rd to 4th to 5th to 6th to 7th to 8th) | Transmission valve body assembly | |
| Harsh engagement (1st to 2nd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 1 brake (B1) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (2nd to 3rd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 3 clutch (C3) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (3rd to 4th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| Reverse clutch (C4) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (4th to 5th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 2 clutch (C2) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (5th to 6th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| Reverse clutch (C4) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (6th to 7th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| No. 3 clutch (C3) | ||
| No. 1 one-way clutch (F1) | ||
| Harsh engagement (7th to 8th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| No. 1 brake (B1) | ||
| No. 1 one-way clutch (F1) | ||
| Slip or shudder (shift lever in R) | Reverse clutch (C4) | |
| No. 2 brake (B2) | ||
| Torque converter assembly | ||
| Slip or shudder (1st) | Forward multiple clutch (C1) | |
| No. 1 one-way clutch (F1) | ||
| Torque converter assembly | ||
| Slip or shudder (2nd) | Forward multiple clutch (C1) | |
| No. 1 brake (B1) | ||
| Torque converter assembly | ||
| Slip or shudder (3rd) | Forward multiple clutch (C1) | |
| No. 3 clutch (C3) | ||
| Torque converter assembly | ||
| Slip or shudder (4th) | Forward multiple clutch (C1) | |
| Reverse clutch (C4) | ||
| Torque converter assembly | ||
| Slip or shudder (5th) | Forward multiple clutch (C1) | |
| No. 2 clutch (C2) | ||
| Torque converter assembly | ||
| Slip or shudder (6th) | No. 2 clutch (C2) | |
| Reverse clutch (C4) | ||
| Torque converter assembly | ||
| Slip or shudder (7th) | No. 2 clutch (C2) | |
| No. 3 clutch (C3) | ||
| Torque converter assembly | ||
| Slip or shudder (8th) | No. 2 clutch (C2) | |
| No. 1 brake (B1) | ||
| Torque converter assembly | ||
| No engine braking (1st) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 2 brake (B2) | ||
| No engine braking (2nd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 1 brake (B1) | ||
| No engine braking (3rd) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 3 clutch (C3) | ||
| No engine braking (4th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| Reverse clutch (C4) | ||
| No engine braking (5th) | Transmission valve body assembly | |
| Forward multiple clutch (C1) | ||
| No. 2 clutch (C2) | ||
| No engine braking (6th) | Transmission valve body assembly | |
| No. 2 clutch (C2) | ||
| Reverse clutch (C4) | ||
| No kick-down | Transmission valve body assembly | |
| Shift point too high or too low | Transmission valve body assembly | |
| Poor acceleration (all positions) | Transmission valve body assembly | |
| Torque converter assembly | ||
| Engine stalls when starting off or stopping. | Transmission valve body assembly | |
| Torque converter assembly |