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CIM / B1440 71

Read the instructions below then start the fault diagnostic procedure.

Symptom: Error message is shown on the display. Steering column lock not working. Engine does not start.

  B1440 71


Invalid Key Position

Fault symptom

Error message is shown on the display.

Steering column lock not working.

Engine does not start.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

The control module receives a faulty key position (signal) from ISM.
Signal from the key does not match key position.

System reaction to a fault:


The control module does not allow starter motor cranking.
Steering column lock deactivated.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:
Ignition Key Postition
Ignition Switch +50, K-Line from ISM
Ignition Switch +15, K-Line from ISM
Ignition Switch +X, K-Line from ISM
Ignition Switch +B, K-Line from ISM
Ignition Key Position +15, Wire from ISM
Ignition Key Position +B, Wire from ISM
(See also description of readings/activations in diagnostic tool)