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CU GSM / U1501 57

Read the instructions below then start the fault diagnostic procedure.

Symptom: No Bluetooth function.

  U1501 57


CU Internal Error. Initiation of Bluetooth failed

Fault symptom

No Bluetooth function.

On-board diagnosis

Type of diagnosis:

Once per "wake-up".

Enable criteria:

Ignition ON.
Battery voltage must be between 9 - 16 V.
No starter motor cranking.

Fault criteria:

Bluetooth initiation failed.

Diagnostic help

Change the control module.

See "Before changing a control module".

Diagnostic help

Diagnosis regards:

To locate electrical faults in the control module internal electronics.

Functions in the diagnostic tool related to the fault:

See menu "All - Add/Remove"