Key Cylinder Switch
KEY CYLINDER SWITCH
Description
Power window main switch detects condition of the door key cylinder switch and transmits to BCM as the
LOCK or UNLOCK signals.
Component Function Check
1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check ("KEY CYL LK-SW", "KEY CYL UN-SW") in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" using CONSULT. CONSULT Function.
Is the inspection result normal?
YES- Key cylinder switch is OK.
NO- .
Diagnosis Procedure
1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1.Turn ignition switch OFF.
2.Disconnect front door lock assembly (driver side).
3.Check voltage between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.
2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
1.Disconnect power window main switch connector.
2.Check continuity between power window main switch harness connector and front door lock assembly (driver side) harness connector.
3.Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES- Replace power window main switch. Power Window Main Switch.
NO- Repair or replace harness.
3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.
4. CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch.
.
Is the inspection result normal?
YES- GO TO 5.
NO- Replace front door lock assembly (driver side). Removal and Installation.
5. CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END
Component Inspection
COMPONENT INSPECTION
1. CHECK DOOR KEY CYLINDER SWITCH
1.Turn ignition switch OFF.
2.Disconnect front door lock assembly (driver side) (key cylinder switch) terminals.
3.Check front door lock assembly (driver side) (key cylinder switch) terminals.
Is the inspection result normal?
YES- Door key cylinder switch is OK.
NO- Replace front door lock assembly (driver side). Removal and Installation.