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 PROBLEM SYMPTOMS TABLE and proceed to the relevant troubleshooting reference.

FOUR WHEEL DRIVE CONTROL SYSTEM

PROBLEM SYMPTOMS TABLE

Symptom

Suspected area

Reference

Phenomenon of tight-corner braking⁽¹⁾

Steering angle sensor circuit
Transfer control solenoid circuit
4WD control ECU
Transfer assembly

4WD warning remains on (Multi-information display)

CAN communication system
Multiplex communication system
4WD control system
4WD control system power source circuit
Brake control system
Combination meter system
4WD control ECU
Combination meter

4WD warning does not come on (Multi-information display)

CAN communication system
Multiplex communication system
Combination meter
4WD control ECU

The system is in the DTC output mode although terminals TC and CG of the DLC3 are not shorted

TC and CG terminal circuit
4WD control ECU

The system is not in the DTC output mode although terminals TC and CG of the DLC3 are shorted

TC and CG terminal circuit
4WD control ECU

HINT:

⁽¹⁾	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.