U2140

U2140 00

UEC Missing on Bus







Fault symptom
- Message "Parking assistance out of order" shown in SID.

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Ignition ON.
- Battery voltage greater than 9 V.

Fault criteria:
- No signal from UEC.
- UEC control module not on the bus.

System reaction to a fault:
- Parking assistance is switched off.
- No bus communication.

Diagnostic help

Diagnosis regards:
- Electrical fault on bus leads or in the component.

Functions in the diagnostic tool related to the fault:

Test value:
- Bus Off Counter, I-Bus
(See also description of readings/activations in diagnostic tool)