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 built into the hood lock. This 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) Using the Techstream, read the Data List.

Smart Access





OK:
ON (engine hood is open) appears on screen.
NG -- INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)
OK -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
2. INSPECT HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)





(a) Remove the hood lock Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE HOOD LOCK ASSEMBLY (ENGINE HOOD COURTESY SWITCH)
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (HOOD LOCK - CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] AND BODY GROUND)





(a) Disconnect the E30 ECU connector.
(b) Disconnect the A8 switch connector.
(c) 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)