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.
Abs Does Not Operate
Retrieve Diagnostic Trouble Codes (DTCs). See RETRIEVING TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM . Ensure a normal DTC is output. Check ignition power supply circuit. See DTC 41 IGNITION POWER SOURCE CIRCUIT under CIRCUIT TESTS . Check speed sensor circuits. See DTCs 31, 32, 33, 34, 35 and 36 (speed sensor circuit codes) under CIRCUIT TESTS. Check ABS actuator. See appropriate ACTUATOR CHECK under CIRCUIT TESTS . If ABS actuator is okay, check hydraulic system for leaks. If all listed items test 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.
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