Diesel Data: Automotive Repair

Luggage Compartment Door Key Cylinder Switch Circuit








THEFT DETERRENT: THEFT DETERRENT SYSTEM: Luggage Compartment Door Key Cylinder Switch Circuit

Luggage Compartment Door Key Cylinder Switch Circuit

DESCRIPTION

The luggage compartment door unlock detection switch comes on when the luggage compartment door key cylinder is turned to the unlock position with the key.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (LUGGAGE COMPARTMENT DOOR UNLOCK DETECTION SWITCH)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the tester main switch ON.
(d) Select the item below in the Data List and read the display on the tester.
Theft Warning ECU:






OK:
When the luggage compartment door is unlocked, "ON" appears on the screen.
HINT: The theft warning ECU detects the luggage compartment door lock condition using signals from the luggage compartment door unlock detection switch.

NG -- INSPECT LUGGAGE COMPARTMENT DOOR UNLOCK DETECTION SWITCH
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT LUGGAGE COMPARTMENT DOOR UNLOCK DETECTION SWITCH




(a) Disconnect the J43 unlock detection switch connector.
(b) Measure the resistance.
Standard resistance:





(c) Reconnect the unlock detection switch connector.
NG -- REPLACE LUGGAGE COMPARTMENT DOOR UNLOCK DETECTION SWITCH
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (THEFT WARNING ECU - UNLOCK DETECTION SWITCH)




(a) Disconnect the D26 theft warning ECU and the J43 unlock detection switch connectors.
(b) Measure the resistance.
Standard resistance:





(c) Reconnect the theft warning ECU and the unlock detection switch connectors.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (UNLOCK DETECTION SWITCH - BODY GROUND)




(a) Disconnect the J43 unlock detection switch connector.
(b) Measure the resistance.
Standard resistance:





(c) Reconnect the unlock detection switch connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE THEFT WARNING ECU ASSEMBLY