VOLVO
SRS-B102881 - Passenger Bobbin Rotation Sensor. Bus Signal / Message Failures. Invalid serial data received
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) receives faulty communication from the passenger-side belt reel sensor. The fault can be caused by an open circuit in the wire, a wire that has come into contact with voltage, or a damaged sensor.
Possible causes
- Open circuit in the wire
- Wire short-circuited to voltage
- The passenger-side belt reel sensor is damaged
What you can do
- 1Read and note the code, clear it and see whether it comes back
- 2Have a workshop check the connectors in the wiring to the passenger-side belt reel sensor for play, oxidation and contact resistance, including other connectors that link it
- 3Have a workshop check the wire for an open circuit and for a short to voltage
- 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.