E39 / P0604 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Engine does not start.
Control module - ECU fault
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Engine does not start.
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
Control module on-board diagnostics has detected a RAM error. |
Dependent:
OK report:
Fault criterion not fulfilled and vehicle speed over 0 km/h for more than 60 s. |
Fault handling:
(See section Fault handling III, "Other emission-related components and functions" for more information.) |
Diagnostic help
Diagnosis regards:
To locate electrical faults in the control module internal electronics. |
See "Before changing a control module" and "After fitting a control module" under Fault diagnosis, general. |
Functions in the diagnostic tool related to the fault:
See menu "All - Add/Remove" |