Automatic transmission cannot shift (AWR6B45)
1. Automatic transmission cannot shift diagnostics
1. Cannot shift between 1st gear and 6th gear.
1) Engine
2) Electronic system
- Battery voltage malfunction
- Turbine speed sensor malfunction
- Shift solenoid (SL) malfunction
- Clutch control solenoid (SL1), (SL2), (SL3), and (SL4) malfunction
- Line pressure control solenoid (SLT) malfunction
- Lock-up control solenoid (SLU) malfunction
- TCM self-diagnosis failure or internal malfunction
3) CAN communication
- Engine torque malfunction
- Engine speed signal malfunction
- Accelerator opening position signal malfunction
4) Transmission assembly
- Valve body malfunction
- Transmission assembly internal malfunction
2. Does not lock-up, or lock-up remains ON.
1) Electronic system
- Battery voltage malfunction
- Turbine speed sensor malfunction
- Inhibitor switch malfunction
- Shift solenoid (SL) malfunction
- Clutch control solenoid (SL1), (SL2), (SL3), and (SL4) malfunction
- Line pressure control solenoid (SLT) malfunction
- Lock-up control solenoid (SLU) malfunction
- TCM self-diagnosis failure or internal malfunction
2) CAN communication
- Engine torque malfunction
- Engine speed signal malfunction
- Accelerator opening position signal malfunction
- Engine coolant temperature signal malfunction
3) Transmission assembly
- Torque converter malfunction
- Valve body malfunction
- Transmission assembly internal malfunction
3. Engine brakes are ineffective.
1) Electronic system
- Shift solenoid (SL) malfunction
- Clutch control solenoid (SL1) malfunction
- Lock-up control solenoid (SLU) malfunction
- TCM self-diagnosis failure or internal malfunction
2) Transmission assembly
- Valve body malfunction
- Transmission assembly internal malfunction
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