VOLVO
DDM-8021 - Side turn indicator. Ground (GND) short
System
Driver Door Module (DDM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
What does this fault code mean?
The control module registers a short to ground in the cable to the turn indicator in the door mirror. The indicator in the mirror then does not work.
Possible causes
- Signal cable short-circuited to ground
What you can do
- 1Read out and note the fault code, clear it, then with ignition on check that the mirror indicator lights when the indicator is switched on
- 2Check the connector to the mirror for oxidation and contact resistance
- 3With ignition off, use a multimeter to confirm the cable has no contact with ground (body). Replace the cable if it is damaged
- 4If you have a diagnostic tool, activate the mirror indicator and check that it lights
- 5If no fault is found, have a workshop try a new door mirror
Symptoms you may notice1
- The turn signal lamp in the mirror does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.