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B1001

Symptom: No system function or poor system function.

B1001

Control Module. Not Programmed

Fault symptoms


• No system function or poor system function.


Input conditions:


- Ignition ON


Fault criteria:


- The control module is not EOL programmed.


Check the wiring

Faults in the control module's female connector could be the cause of the diagnostic trouble code. Check the connector for oxidation, dislodged pins and pin clamping force.

Fault handling:

(See section “Fault diagnosis, General” for more information.)

For more information see also:

- The "Read Values" menu for a description of read values.

- The "Activations" menu for a description of application areas.