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.
Ecu Power Source Circuit Test
Check DOME fuse (10-amp) in engine compartment relay block. Replace fuse if necessary and check wiring for short. Backprobe for voltage at wireless door lock ECU terminal No. 8 (Red wire). See Fig 1. If battery voltage exists, proceed to next test listed in TROUBLE SHOOTING . If battery voltage does not exist, check for open in White/Black wire between ground and wireless door lock ECU. Refer to WIRING DIAGRAMS . Repair or replace circuit as necessary. If White/Black wire is okay, check circuit between wireless door lock ECU and battery. Repair or replace circuit as necessary and retest system operation.
NO RELATED
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.