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.
Symptom Diagnosis
If a normal DTC is displayed during DTC check but problem still occurs, check circuits for each problem symptom in order given in SYMPTOM DIAGNOSIS , then see specified procedure or appropriate test under DIAGNOSIS & TESTING , DIAGNOSTIC TESTS , SYMPTOM TESTS or COMPONENT TESTS .
| Symptom | Circuit | Circuit, DTC Or Procedure | ||
|---|---|---|---|---|
| ABS Inoperative (1) | Check DTC, Confirm Normal Code Is Output | RETRIEVING DIAGNOSTIC TROUBLE CODES | ||
| Power Source Circuit | DTC 41 | |||
| Speed Sensor Circuit | DTC 31-34 | |||
| Check ABS/TRAC Actuator | ACTUATOR CHECK | |||
| Check For Hydraulic Leakage | Visual Inspection | |||
| ABS Inoperative Intermittently (1) | Check DTC, Confirm Normal Code Is Output | RETRIEVING DIAGNOSTIC TROUBLE CODES | ||
| Speed Sensor Circuit | DTC 31-34 | |||
| Stoplight Switch Circuit | DTC 49 | |||
| Check ABS/TRAC Actuator | ACTUATOR CHECK | |||
| Check For Hydraulic Leakage | Visual Inspection | |||
| ABS Warning Light Abnormal | ABS Warning Light Circuit | ABS WARNING LIGHT | ||
| ABS/TRAC ECU | ABS & TRAC OFF LIGHTS ON: ABS/TRAC ECU MALFUNCTION | |||
| Unable To Perform DTC Check (1) | ABS Warning Light Circuit | ABS WARNING LIGHT | ||
| Tc Terminal Circuit | Tc TERMINAL | |||
| Unable To Perform Speed Sensor Diagnostics | Ts Terminal Circuit | Ts TERMINAL | ||
| ABS/TRAC ECU | ABS & TRAC OFF LIGHTS ON: ABS/TRAC ECU MALFUNCTION | |||
| TRAC Inoperative (1) | Check DTC, Confirm Normal Code Is Output | RETRIEVING DIAGNOSTIC TROUBLE CODES | ||
| Power Source Circuit | DTC 41 | |||
| Speed Sensor Circuit | DTC 31-34 | |||
| Check For Hydraulic Leakage | Visual Inspection | |||
| SLIP Indicator Light Abnormal | SLIP Indicator Light | SLIP INDICATOR LIGHT | ||
| TRAC OFF Indicator Light Abnormal (1) | TRAC OFF Indicator Light Circuit | TRAC OFF INDICATOR, TRAC CUT SWITCH | ||
| TRAC Cut Switch Circuit | TRAC OFF INDICATOR, TRAC CUT SWITCH | |||
| DTC Check Cannot Be Done (1) | TRAC OFF Indicator Light Circuit | TRAC OFF INDICATOR, TRAC CUT SWITCH | ||
| Tc Terminal Circuit | Tc TERMINAL | |||
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NO RELATED
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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.