3C
4WD control system does not operate (4WD indicator or 4WD low indicator does not flash and warning buzzer does not sound)
Diagnose transfer assembly after performing 4WD control system check described in 4WD Control System Check .
Condition Possible Cause Action
4WD control system does not operate (4WD indicator or 4WD low indicator does not flash and warning buzzer does not sound)
“2WD” switch, “4WD” switch and/or “4WD-L” switch faulty
Check switch(es) referring to 2WD/4WD Switch Inspection .
Transfer shift actuator motor and/or transfer shift actuator limit switch faulty
Check transfer shift actuator referring to Transfer Shift Actuator Inspection .
4WD switch and/or 4WD low switch faulty
Check switch(es) referring to 4WD Switch and 4WD Low Switch Inspection .
Wiring or grounding faulty
Repair as necessary.
4WD control module faulty
Check 4WD control module referring to Inspection of 4WD Control Module and Its Circuits .