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 transponder and ECU status
- IGN "ON" & Engine "OFF" with key intended to register
- Monitor the "ECM, KEY and SMARTRA STATUS" Parameter on the Scan Tool.
Specification: 'LEARNT'
See Fig 1. This data show that 3 keys have been taught, ECU has been learnt, Key in key cylinder has been learnt and SMARTRA3 has been learnt.
- Are "KEY STATUS", "SMARTRA STATUS" and "ECU STATUS" Parameter within specifications?
YES
- Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to step 2.
- Check transponder
- IGN "ON" & Engine "OFF"
- Neutralize ECM and Register transponder key by scan tool.NOTE: * Pin code is required to Neutralize ECM and to Register transponder key
- Are Neutralizing and Registering completed normally?
YES
- Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known-good transponder and perform key teaching procedure with scanner.
If the problem is corrected, replace transponder and then 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.
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