Engine Hood Courtesy Switch Circuit

THEFT DETERRENT: THEFT DETERRENT SYSTEM (w/ Smart Key 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 Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn Techstream main switch on.
(d) Select the item below in the Data List and read the display on the tester.

Smart Key:





OK:
The indicator on 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 A8 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 (ENGINE HOOD COURTESY SWITCH - BODY GROUND)




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






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ENGINE HOOD COURTESY SWITCH)




(a) Disconnect the D39 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 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)