VOLVO
SRS-B11A181 - Right side restraints pressure 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:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The airbag control module (SRS) finds faults in the communication with the right-side impact pressure 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 right-side pressure sensor is damaged
What you can do
- 1Read and note the code, clear it and see whether it comes back
- 2Have a workshop look at the connectors at the sensor and at the module for looseness, oxidation and contact resistance
- 3Have a workshop check the wire for a break and for contact with voltage, including any 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 notice3
- SRS warning lamp lights up or behaves abnormally
- SRS warning message shown in the display
- Text message and warning symbol in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.