Diagnosis Procedure

KEY SWITCH


Description

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





KEY SWITCH


Diagnosis Procedure

1.CHECK FUSE
1. Turn ignition switch OFF.
2. Check 10 A fuse, [No.14, located in fuse block (J/B)].
Is fuse fusing?
YES - Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO - GO TO 2.
2.CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Disconnect key switch connector.
2. Check voltage between key switch harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between key switch harness connector and BCM harness connector.





3. Check continuity between key switch connector and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace harness.
4.CHECK KEY SWITCH
Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace key switch.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END