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CIM / B3935 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display. Ignition cannot be switched off.

  B3935 00


Malfunctioning Transponder Detected at Key in

Fault symptom

Message appears in display.

Ignition cannot be switched off.

On-board diagnosis

Type of diagnosis:

Diagnostics is carried out each time the key is inserted in the ignition switch.

Enable criteria:

Key in ignition switch.

Fault criteria:

Incorrect transponder identification.

System reaction to a fault:

None

Diagnostic help

A trouble code is generated if a key from another car is inserted in the ignition switch.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

See Reading:
Transponder Fixcode OK
Transponder Encryption ID OK
(See also description of readings/activations in diagnostic tool)