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.
Diagnosis & Testing: Notes
ABS DTCs are retrieved using New Generation Star (NGS) Tool (49-T088-0A0 ) and NGS Self-Test Adapter (49-T088-003 ). See RETRIEVING DIAGNOSTIC TROUBLE CODES . Test ABS CM using a DVOM. See ABS CONTROL MODULE under COMPONENT TESTS.
If ABS test equipment is unavailable, ensure wiring harness and connectors are okay. Test each ABS component. See COMPONENT TESTS . If wiring harness, connectors and all ABS components are okay, replace ABS CM with a known-good module and retest system.
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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.