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.
Diagnostic Procedure
Turn ignition on. Measure voltage between terminals Tc and E1 of DLC1 or DLC2. If voltage is 10-14 volts, circuit is okay. If ABS warning light does not blink even after terminals are connected, malfunction may exist in ABS ECU. If voltage is not 10-14 volts, check for open or short circuit in wiring harness between ABS ECU and DLC1 and DLC2, or between ground and DLC1 and DLC2. See WIRING DIAGRAMS . Repair as necessary. If wiring harness is okay, replace ABS ECU.
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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.