SYMPTOM TROUBLESHOOTING [WL-C, WE-C (MT)]

id0303c2800300

•  Verify the symptoms, and perform troubleshooting according to the appropriate number.

No.

Symptom

Description
1
No RFW operation from free to lock (RFW indicator light does not illuminate.)
•  Free solenoid valve malfunction
•  RFW indicator light bulb malfunction
•  RFW actuator malfunction
•  RFW switch malfunction
•  Print plate in instrument cluster malfunction
•  Main fuse malfunction
•  Transfer neutral switch malfunction
•  4x4 indicator switch malfunction
•  PCM malfunction
•  Lock solenoid valve malfunction
•  RFW control box malfunction
•  Air leakage from vacuum hose
•  One-way check valve malfunction
•  Related fusses and/or harness malfunction
2
No RFW operation from lock to free (RFW indicator light does not go off.)
•  Lock solenoid valve malfunction
•  RFW switch malfunction
•  RFW actuator malfunction
•  Print plate in instrument cluster malfunction
•  Main fuse malfunction
•  RFW main switch malfunction
•  Transfer neutral switch malfunction
•  4x4 indicator switch malfunction
•  Free solenoid valve malfunction
•  PCM malfunction
•  RFW control box malfunction
•  Air leakage from vacuum hose
•  One-way check valve malfunction
•  Related fuses and/or harness malfunction
3
Noise
•  Joint shaft bearing abrasion or damage
•  RFW hub abrasion
•  Joint shaft abrasion
4
Oil leakage
•  RFW control box is poorly installed