Engine Hood Courtesy Switch Circuit

CIRCUIT DESCRIPTION

This engine hood courtesy switch is built into the engine hood assembly and goes on when the engine hood is opened and goes off when the engine hood is closed.
The engine hood courtesy SW signal is sent to the Driver Side J/B ECU, and through the multiplex communication circuit to the Theft Deterrent ECU.

Wiring Diagram:

Steps 1 - 2:

Step 3:

INSPECTION PROCEDURE

HINT: In case of using the LEXUS hand-held tester, start the inspection from step 1 and in case of not using the LEXUS hand-held tester, start from step 2.