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.
Initiating Immobilizer Control Module
HINT: A fault was stored in the control module when storing the PIN code during initiation.
- Ignition on.
- Try to initiate the control module according to Immobilizer control module, initiating .
- Switch the ignition off and on.
Read off diagnostic trouble codes (DTCs).
Has diagnostic trouble code (DTC) IMM-121 been stored again?
- YES
Refer to Replacing the component
- NO
Refer to Fault-tracing information
Use the Manual With the Right Hardware
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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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