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.
Component Inspection
- Check communication between ECM and scantool
- IGN "ON" & Engine "OFF".
- Connect scantool to Data Link Connector (DLC).
- Erase the DTC and Monitor Parameter of immobilizer on the Scantool.
* Try one more time from "select car model" even if "Communication error" is present on the scantool
- Is the communication between ECM and scantool normal?
YES
If ECM is in "Locked by Timer" status. Keep "KEY ON" status for 1 hours to withdraw "Locked by Timer" status. Then repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
Substitute with a known-good scantool and check for proper operation.
If the problem is corrected, Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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.