Cannot Be Programmed

Cannot be programmed

IMM-121 PIN code

Initiating immobilizer control module

Hint: A fault was stored in the control module when storing the PIN during initiation.




- Ignition on.
- Try to initiate control module according to Initiate the immobilizer control module. Initiate the Immobilizer Control Module.
- Switch the ignition off and on.
Read off diagnostic trouble codes (DTCs).





Has diagnostic trouble code (DTC) IMM-121 been stored again?

Yes - Replacing component

No - Fault-tracing information

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Replacing component
Immobilizer control module cannot be initiated. Try a new control module according to Replacing immobilizer control module Replacing Immobilizer Control Module.
Initiate the new control module according to Initiate the immobilizer control module. Initiate the Immobilizer Control Module.

Continue - Verifying the immobilizer control module

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Fault-tracing information
The fault is caused by temporary communication disruption.

Continue - FAULT FOUND

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Verifying the immobilizer control module




Verification

Hint: After finishing the repair check that the repair is successful and that the fault is corrected as follows.




- Switch the ignition off and on.
Read off diagnostic trouble codes (DTCs).





Has the diagnostic trouble code (DTC) recurred?

Yes - VERIFICATION FAILED

No - VERIFIED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Initiating immobilizer control module

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