With Intelligent Key System

KEY SWITCH





Description
Key switch detects that mechanical key is inserted into the key cylinder, and then transmits the signal to BCM .




Component Function Check
1.CHECK KEY SWITCH INPUT SIGNAL
Check key switch ("KEY ON SW") in "Data Monitor" mode with CONSULT-III. With Intelligent Key System.





Is the inspection result normal?
YES - Key switch is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Remove mechanical key from key cylinder.
2. Disconnect key switch connector.
3. Check voltage between ignition knob switch, key switch and key lock solenoid harness connector and ground.





Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace harness.
2.CHECK KEY SWITCH SIGNAL CIRCUIT
1. Check continuity between BCM harness connector and ignition knob switch, key switch and key lock solenoid connector.





2. Check continuity between key switch and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK KEY SWITCH
Check key switch function. SEE Component Inspection.
Is the inspection result normal?
yes - GO TO 4.
NO - Replace ignition knob switch, key switch and key lock solenoid.
4.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END




Component Inspection

COMPONENT INSPECTION
1.CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check continuity between ignition knob switch, key switch and key lock solenoid terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace ignition knob switch, key switch and key lock solenoid.