E39 / P06B7 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Check Engine
Performance loss.
Control Module. Internal Fault
Fault symptom
Check Engine
Performance loss.
On-board diagnosis
Type of diagnosis:
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:
| (See also description of readings/activations in diagnostic tool) |
