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.
Final Check For All Code Charts
Unless otherwise instructed in code inspection, perform following FINAL CHECK after each repair is completed.
- Erase Diagnostic Test Mode II (Self-Diagnostic Results) memory. See CLEARING CODES under SELF-DIAGNOSTIC SYSTEM.
- Ensure Code 55 (no malfunction) is displayed in self- diagnostic mode.
- Perform a test drive.
- Perform Diagnostic Test Mode II (Self-Diagnostic Results) again. If results are okay, inspection is complete. If results are not okay, verify ECM pin terminals or harness connector are not damaged.
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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