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.
Diagnostic Trouble Code (DTC) Information
IMM-122 control module
Condition
To indicate their status (whether the control module is new or not) all new control modules (replacement parts) are delivered with diagnostic trouble code (DTC) IMM-122 active. After entering the PIN code this code is automatically erased.
Possible Source
- Defective immobilizer control module.
- Faulty programming procedures.
- New immobilizer control module, not initiated.
Fault symptom[s]
- The indicator lamp in the combined instrument panel lights until initiation is complete.
- The engine does not start. (The starter motor does not operate).
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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