VOLVO
SRS-B102811 - Passenger Bobbin Rotation Sensor. General Electrical Failures. Circuit short to ground
System
Supplemental Restraint System (SRS)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The airbag control module (SRS) measures the voltage to the passenger-side belt reel sensor. The fault is stored when the voltage is too low, which can be caused by a wire shorted to ground or by poor contact in the connections.
Possible causes
- Wire short-circuited to ground
- Contact resistance or oxidation in the connections
- Short circuit in the connections
What you can do
- 1Read and note the code, clear it and see whether it comes back
- 2Have a workshop check the connectors to the passenger-side belt reel sensor and to the airbag control module for play, oxidation and contact resistance
- 3Have a workshop check the wire for a short to ground, including other connectors that link it
- 4Have a workshop correct the fault and confirm the code does not come back
- 5Do not work on the airbag system yourself; have a workshop carry out the check and the repair
Symptoms you may notice2
- SRS warning lamp on
- SRS warning message shown in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.