VOLVO
DDM-B1A9887 - LIN Bus circuit #1. Bus Signal / Message Failures. Missing message
System
Førerdør (DDM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Vis modeller per årsmodell og motor (4)
Hva betyr feilkoden?
The driver and passenger door modules communicate over the LIN bus with the rear door modules and with the control panel in the driver door. The fault is stored when no signal is received, which can be caused by a broken or short-circuited communication wire, or by a poor connection in the connectors.
Mulige årsaker
- Open circuit in the communication wire
- The communication wire is short-circuited to ground
- The communication wire is short-circuited to supply voltage
- Contact resistance or oxidation in the connections
- Open circuit in the connections
- Short circuit in the connections
Hva du kan gjøre
- 1Read and clear the code and road test to see whether it returns
- 2Check that the fuses are intact
- 3Visually check the communication wire between the driver door and rear door modules for visible damage
- 4Check that the connectors in the driver door and the rear door are secure and free from moisture and oxidation
- 5Use a multimeter to check that the bus wire has no break and no contact with ground or supply voltage
- 6If the fault remains, have a workshop with diagnostic equipment check the communication between the door modules
Symptomer du kan merke2
- The control panel in the driver door does not work
- The electric window lift in the rear door does not work
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