P1532

P1532

Diagnosis information - DME (DFI)

Time information via CAN missing or implausible

NOTE:
- The DME (DFI) control unit receives time information from the instrument cluster at regular intervals (approx. 4 sec.) when the ignition is on.
- The fault is detected when:
- the time information remains unchanged for longer than 60 seconds;
or
- the time information deviates from the internal time of the DME (DFI) control unit;
or
- the time information changes too frequently
(e.g., in the event of loose contact in CAN)

Diagnostic conditions
- Instrument cluster ready for operation
- No detection of CAN fault
- Engine running, then:
- Switch off engine, then immediately:
- Switch on ignition for more than 10 minutes

Possible fault causes
- Wrong software version in DME (DFI) control unit (e.g., US data for EU vehicle)
- Wrong software version in gateway
- Wrong software version in instrument cluster
- Fault in CAN (e.g., loose contact)
- Instrument cluster faulty