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 FUSE
- Check if the ECU-B and ECU-ACC fuses are normal.
NG: REPLACE FUSE
OK: Go to next step.
- Check if the ECU-B and ECU-ACC fuses are normal.
- INSPECT OUTER MIRROR SWITCH ASSY
- Remove the outer mirror switch assy.
- Left side for left/right adjustment switch: Inspect the left side mirror switch continuity.
Standard
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the continuity is not as specified, replace the switch,
- Right side for left/right adjustment switch:
Inspect the right side mirror switch continuity.
Standard
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the continuity is not as specified, replace the switch.
NG: REPLACE OUTER MIRROR SWITCH ASSY
OK: Go to next step.
- CHECK WIRE HARNESS (OUTER MIRROR CONTROL ECU - OUTER MIRROR SWITCH)
- Disconnect the M2 outer mirror switch and M8 outer mirror control ECU connectors.
- Check the continuity between the disconnected connectors.
Standard
NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
OK: REPLACE OUTER MIRROR CONTROL ECU ASSY
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.