Engine Hood Courtesy Switch Circuit

THEFT DETERRENT: THEFT DETERRENT SYSTEM: Engine Hood Courtesy Switch Circuit

Engine Hood Courtesy Switch Circuit

DESCRIPTION

The engine hood courtesy switch is built into the engine hood lock assembly. The switch turns on when the engine hood is opened and turns off when the engine hood is closed.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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






NG -- INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)




(a) Disconnect the A18 courtesy switch connector.
(b) Check the resistance of the engine hood courtesy switch.
Standard resistance:





(c) Reconnect the courtesy switch connector.
NG -- REPLACE HOOD LOCK ASSEMBLY
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (THEFT WARNING ECU ASSEMBLY - ENGINE HOOD COURTESY SWITCH)




(a) Disconnect the D26 theft warning ECU and A18 engine hood courtesy switch connectors.
(b) Measure the resistance.
Standard resistance:





(c) Reconnect the theft warning ECU and engine hood courtesy switch connectors.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (ENGINE HOOD COURTESY SWITCH - BODY GROUND)
(a) Disconnect the A18 engine hood courtesy switch connector.




(b) Measure the resistance.
Standard resistance:





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