Transfer Case TY21B

AWD WARNING LAMP





Component Function Check
1.CHECK AWD WARNING LAMP FUNCTION
Check that AWD warning lamp turns ON when turn the ignition switch ON. Then, AWD warning lamp turns
OFF approx. 1 second after the engine start.
Is the inspection result normal?
YES - INSPECTION END
NO - Proceed to 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 - Perform trouble diagnosis for detected DTC. Testing and Inspection.
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 "WARNING LAMP" in "DATA MONITOR" for "ALL MODE AWD/4WD".
Does the item on "DATA MONITOR" indicate "On"?
YES - Perform the trouble diagnosis for combination meter power supply circuit. Power Supply And Ground Circuit, "COMBINATION METER : Diagnosis Procedure".
NO - Replace AWD control module. Removal And Installation.