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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Noise | Oil (Level low) | |
| Oil (Wrong) | ||
| Transfer faulty | ||
| Oil leakage | Oil (Level too high) | |
| Gasket (Damaged) | ||
| Oil seal (Worn or damaged) | ||
| O-ring (Worn or damaged) | ||
| Switch from high to low impossible | Harness or connector | |
| Transfer shift actuator | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Transfer position switch | ||
| Four wheel drive control ECU | ||
| Transfer faulty | ||
| Switch from free to lock impossible | Harness or connector | |
| Transfer shift actuator | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Center differential lock switch | ||
| Four wheel drive control ECU | ||
| Transfer faulty | ||
| Rear differential does not lock* | Harness or connector | |
| Transfer shift actuator | ||
| Transfer position switch | ||
| Differential lock switch | ||
| Differential lock shift actuator | ||
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Four wheel drive control ECU | ||
| Rear differential |
Tech Tips
*: w/ Rear Differential Lock