VOLVO
PAM-B1B4896 - Rear Left Outer Sensor. Component Failures. Component internal failure
System
Parking Assistance Module (PAM)
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 parking assistance module (PAM) has registered that the internal components of the outer left rear sensor are not working. The fault may be due to a damaged sensor, a poorly connected contact, oxidation in the connections or a break in the ground wire.
Possible causes
- Parking sensor poor contact
- Open circuit in the ground wire
- Contact resistance or oxidation in the connections
- Damaged parking sensor
What you can do
- 1Read and clear the code, then test drive the car to see whether it comes back
- 2Check that the connector to the outer left rear sensor is firmly seated and free from oxidation
- 3If you have a diagnostic tool, read the fault data for the outer left rear sensor and see whether it shows a fault in the sensor's internal parts
- 4Use a multimeter to check that the ground wire to the sensor has no break
- 5This points to a failure inside the sensor; replace the outer left rear parking sensor once the other checks are done
- 6If fault tracing points to a failure inside the parking assistance module, have a workshop replace the module and load new software
Symptoms you may notice4
- The parking assistance does not work
- Yellow warning symbol and text message in the display
- The information lamp is lit
- Text message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.