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 Trouble Codes
Trouble codes should be cleared after repairs have been made. Also, some diagnostic charts will tell you to clear codes before using the chart. This allows the ECM to set the code while going through the chart, which will help to find the cause of the problem more quickly.
Turn ignition on and ground diagnostic test terminal at ALCL connector. Turn ignition off and remove ECM fuse from fuse block for 10 seconds or more. Remove test lead from ALCL connector.
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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