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.
Test 20A: Traction Control Function (TRAC On) Light
1999 Chrysler LHSSECTION Test 20A: Traction Control Function (TRAC On) Light
NOTE:
If any other diagnostic trouble codes set, they must be repaired before continuing with this test. Scan tool must be able to communicate with CAB prior to performing this test.
- Turn ignition off. Observe TRAC ON light located on instrument cluster. Turn ignition on. If TRAC ON light turns on for several seconds, and then turns off, TRAC ON light circuit is operating properly at this time. If TRAC ON light does not operate as specified, go to next step.
- If TRAC ON light remains on, replace instrument cluster. If TRAC ON light does not turn on, go to next step.
- Turn ignition off. Observe seat belt light. Turn ignition on. If seat belt light turns on for several seconds, and then turns off go to next step. If seat belt light does not turn on than repair open in fused battery voltage circuit to instrument cluster.
- Inspect TRAC ON light bulb in instrument cluster. If bulb is faulty, replace TRAC ON light bulb. If bulb is okay, go to next step.
- Ensure TRAC OFF light is off. Drive vehicle on a slippery surface and stop. Using scan tool, monitor traction control status. Accelerate vehicle to enable traction control. If traction control status on scan tool changes while in traction control mode, replace instrument cluster. If traction control status on scan tool does not change while in traction control mode, replace CAB.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.