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.
Clearing Codes
Hard and intermittent failure codes remain in ECM memory until battery voltage is removed from the ECM. Removing battery voltage from ECM for 30 seconds will clear all stored memory codes. Clear codes from memory when after completing a repair. Some diagnostic flow charts require clearing a code during a test. Battery voltage may be removed from the ECM by disconnecting the battery, the ECM harness connector or fuse F-10 (10 amp).
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.