Engine Hood Courtesy Switch Circuit

THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: Engine Hood Courtesy Switch Circuit

Engine Hood Courtesy Switch Circuit

DESCRIPTION

The engine hood courtesy switch is installed together with the hood lock. This switch turns off when the engine hood is opened and turns on when the engine hood is closed.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM
(a) Connect a Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream main switch on.
(d) Select the item below in the Data List and read the display on the Techstream.

Main Body





OK:
The indicator on the Techstream switches between ON and OFF in accordance with the engine hood courtesy switch status.

NG -- INSPECT ENGINE HOOD COURTESY SWITCH
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT ENGINE HOOD COURTESY SWITCH
(a) Disconnect the A35 engine hood courtesy switch connector.




(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE HOOD LOCK ASSEMBLY
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE HOOD COURTESY SWITCH)




(a) Disconnect the H4 main body ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU