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.
Warm Up Cycles
Once the MIL has been extinguished by the Good Trip Counter, the PCM automatically switches to a Warm Up Cycle Counter that can be viewed on the DRB III®. Warm Up Cycles are used to erase DTCs and Freeze Frames. Forty Warm Up cycles must occur in order for the PCM to self-erase a DTC and Freeze Frame. A Warm Up Cycle is defined as follows:
- Engine coolant temperature must start below and rise above 71°C (160°F)
- Engine coolant temperature must rise by 4.4°C (40°F)
- No further faults occur
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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