E39 / P06B6 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Check Engine Performance loss.

P06B6 00

Fault symptom

Check Engine

Performance loss.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine running more than 10 seconds.

Engine speed more than 400 rpm.

Fault criteria:

Internal Control Module. Knock Control Malfunction.

System reaction to a fault:

The ignition is lowered to minimise the risk of engine damage.

Diagnostic help

Diagnosis regards:

To locate electrical faults in the control module internal electronics.

Functions in the diagnostic tool related to the fault:

Add / Remove

(See also description of readings/activations in diagnostic tool)