Problem Symptoms Table
HINT:
If a normal system code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting information.
FOUR WHEEL DRIVE CONTROL SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Phenomenon of tight-corner braking* | 1. Steering angle sensor circuit | Refer to DTC C1297/97: Steering Angle Sensor |
| 2. Transfer control solenoid circuit | Refer to DTC C1298/98: Linear Solenoid Circuit | |
| 3. 4WD control ECU | Refer to REMOVAL | |
| 4. Transfer assembly | Refer to REMOVAL | |
| 4WD warning remains on (Multi-information display) | 1. CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| 2. Multiplex communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| 3. 4WD control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| 4. 4WD control system power source circuit | Refer to DTC C1241/94: Low Power Supply Voltage | |
| 5. Brake control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| 6. Combination meter system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| 7. 4WD control ECU | Refer to REMOVAL | |
| 8. Combination meter | Refer to REMOVAL | |
| 4WD warning does not come on (Multi-information display) | 1. CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| 2. Multiplex communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| 3. Combination meter | Refer to REMOVAL | |
| 4. 4WD control ECU | Refer to REMOVAL | |
| The system is in the DTC output mode although terminals TC and CG of the DLC3 are not shorted | 1. TC and CG terminal circuit | Refer to TC and CG Terminal Circuit |
| 2. 4WD control ECU | Refer to REMOVAL | |
| The system is not in the DTC output mode although terminals TC and CG of the DLC3 are shorted | 1. TC and CG terminal circuit | Refer to TC and CG Terminal Circuit |
| 2. 4WD control ECU | Refer to REMOVAL |
HINT:
* Phenomenon of tight-corner braking
When driving in 4-wheel drive mode, the vehicle is hard to turn, as if the brakes were applied, due to the rotational difference between the front and rear tires while turning.