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.
Driver Door Control Unit Circuit Check
- POWER SUPPLY CIRCUIT CHECK
- Turn ignition switch OFF.
- Disconnect driver door control unit (LCU01) connector.
- Check voltage between driver door control unit (LCU01) connector D8 terminal 14 and ground.
- 14 (Y/G) - Ground : Battery voltage
OK or NG
- OK >> GO TO 2.
- NG >> Check the following.
- 40A fusible link (letter H. located in fuse and fusible link box).
- Harness for open or short between driver door control unit (LCU01) and fuse.
- GROUND CIRCUIT CHECK
Check continuity between driver door control unit (LCU01) connector D8 terminal 15 and ground.
- 15 (B) - Ground : Continuity should exist.
OK or NG
- OK >> INSPECTION END.
- NG >> Repair or replace harness.
Use the Manual With the Right Hardware
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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.
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