Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2007HIGHLANDER 4WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSBACK DOOR COURTESY SWITCH CIRCUIT
2007 Toyota Highlander 4WD L4-2.4L (2AZ-FE)
Back Door Courtesy Switch Circuit
2007 Toyota Highlander 4WD L4-2.4L (2AZ-FE)SECTION Back Door Courtesy Switch Circuit
Back Door Courtesy Switch Circuit
DESCRIPTION
The multiplex network body ECU detects the back door open or closed status based on signals from the back door courtesy light switch (rear interior light).
INSPECTION PROCEDURE
HINT: Start the inspection from step 1 when using the intelligent tester and start from step 2 when not using the intelligent tester.
DESCRIPTION
The multiplex network body ECU detects the back door open or closed status based on signals from the back door courtesy light switch (rear interior light).
Wiring Diagram:
Step 1:
Step 1 (Continued)-2:
Step 3:
INSPECTION PROCEDURE
HINT: Start the inspection from step 1 when using the intelligent tester and start from step 2 when not using the intelligent tester.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.