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.
Inspection Procedure
- CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONSÂ
- Check that the wireless door lock functions operate with movement of the transmitter switch.
HINT:
When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the multiplex network body ECU.
NG: CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONSÂ
OK: Go to next step.Â
- Check that the wireless door lock functions operate with movement of the transmitter switch.
- CHECK MANUAL UP/DOWN FUNCTIONÂ
- Check that the manual UP/DOWN function using the master switch and each regulator switch can operate all the power windows.
NG: OTHER PROBLEMÂ
OK: Go to next step.Â
- CHECK REMOTE UP/DOWN FUNCTIONÂ
- Check that the remote UP/DOWN function using the master switch can operate the power windows.
NG: OTHER PROBLEMÂ
OK: REPLACE MULTIPLEX NETWORK BODY ECUÂ
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.