P0770

Fault, DTC 22 Test Point 18

Load signal from DME control module

Possible causes, elimination, notes

Fault effect:
Fixed map.

NOTE: The DME control module signals a fault directly to the Tiptronic control module via a data lead (CAN bus).

1. Read out fault memory of the DME control module and remedy the fault according to the DME test plan.
2. Check wiring from Tiptronic control module connector pin 85 (or 86) to the DME control module connector pin 85 (or 86) for open circuit, short to ground and short to B+.