Door Courtesy Switch Circuit

ENGINE IMMOBILISER SYSTEM: Door Courtesy Switch Circuit

Door Courtesy Switch Circuit

DESCRIPTION

When an additional transponder key is registered, the transponder key ECU assembly detects the front door courtesy light switch open/close condition to register the key.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY





(a) Remove the driver side front door courtesy light switch.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH CIRCUIT)





(a) Install the driver side front door courtesy light switch.
(b) Disconnect the T10 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE