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.
Civic, CR-V & Insight
Remove PCM from test vehicle. Install known-good PCM in test vehicle. Using Honda PGM Tester or OBD-II scan tool, rewrite immobilizer code into PCM with scan tool. This will allow known-good PCM to recognize immobilizer code and allow engine to be started and tested. After completing test, reinstall PCMs and rewrite immobilizer code with scan tool.
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.