VOLVO
SRS-B009781 - Right Side Restraints Sensor 2. 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 supplemental restraint system module (SRS) monitors the circuit to the right front side impact sensor. The code is stored when communication is faulty and the incorrect value has persisted for a while. The cause may be an open circuit in the wire, a wire shorted to supply voltage or a damaged sensor.
Possible causes
- Open circuit in the wire
- Wire short-circuited to supply voltage
- Damaged right front side impact sensor
What you can do
- 1Read and note the code, clear it, and see whether it returns
- 2Have a workshop check the connectors at the module and at the sensor for looseness, oxidation and contact resistance
- 3Have a workshop check the wire for an open circuit or a short to supply voltage and repair what is found
- 4Do not work on the airbag system yourself; have a workshop check it
Symptoms you may notice3
- The SRS warning light comes on
- An SRS warning message is shown
- A warning symbol and a text message are shown
General guidance for car owners. Diagnosis on the car can point to a different cause.