VOLVO
SRS-B00A086 - Occupant Classification System. Bus Signal / Message Failures. Signal invalid
System
Supplemental Restraint System (SRS)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2011–), S80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (5)
What does this fault code mean?
The supplemental restraint system module (SRS) monitors the communication link to the occupant weight sensor (OWS). The code is stored when communication is faulty and the incorrect value has persisted for a while. The cause may be communication interference or a damaged occupant weight sensor.
Possible causes
- Communication interference
- Damaged occupant weight sensor (OWS)
What you can do
- 1Read the code, clear it, and see whether it returns
- 2Have a workshop check the connectors at the occupant weight sensor and the SRS module for looseness, oxidation and contact resistance
- 3Have a workshop check the communication wires between the module and the occupant weight sensor for short circuits to supply voltage or ground
- 4Have a workshop replace the occupant weight sensor if needed and calibrate it after replacement
- 5Do 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
- The PAD lamp comes on
General guidance for car owners. Diagnosis on the car can point to a different cause.