Transfer Case ETX13C

AWD WARNING LAMP





Description
- Turns ON when there is a malfunction in AWD system. AWD warning lamp indicates the vehicle is in fail-safe mode and shifting to rear-wheel drive or 4-wheel drive (front-wheels still have some driving torque).
- Also turns ON when ignition switch is turned ON, for the purpose of lamp check. Turns OFF approximately for 1 second after the engine starts if system is normal.

AWD WARNING LAMP INDICATION






CAUTION:
- AWD warning lamp also turns ON due to data reception error, CAN communication error etc.




Component Function Check
1.CHECK AWD WARNING LAMP FUNCTION
1. Turn the ignition switch ON.
2. Make sure that AWD warning lamp lights up.
Is the inspection result normal?
YES - INSPECTION END
NO - Proceed to diagnosis procedure. SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK POWER SUPPLY AND GROUND CIRCUIT
Perform the trouble diagnosis for power supply and ground circuit. Power Supply And Ground Circuit.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace the error-detected parts.
2.PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform self-diagnosis for "ALL MODE AWD/4WD".
Is any DTC detected?
YES - Check the DTC.
NO - GO TO 3.
3.CHECK AWD WARNING LAMP SIGNAL
With CONSULT-III
1. Turn the ignition switch ON.

CAUTION:
Never start the engine.
2. Check "4WD WARN LAMP" of CONSULT-III "DATA MONITOR" for "ALL MODE AWD/4WD".
Does the item on "DATA MONITOR" indicate "On"?
YES - GO TO 4.
NO - Replace AWD control unit. Exploded View.
4.CHECK COMBINATION METER POWER SUPPLY CIRCUIT
Perform the trouble diagnosis for combination meter power supply circuit. Combination Meter Unified Meter And A/C Amp, "COMBINATION
METER : Diagnosis Procedure".
Is the inspection result normal?
YES - INSPECTION END
NO - Repair or replace the error-detected parts.