VOLVO
PAC-U1A4B49 - Control Module Processor B. System Internal Failures. Internal electronic failure
System
Powertrain (Engine & Gearbox)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2011–), V60 (2011–), V60 Cross Country (2015–), XC60 (2009–)
Show models by year and engine (4)
What does this fault code mean?
The parking assistance camera module (PAC) checks its own internal components. The fault is set when the control module detects a problem with the software in PAC, or when internal components do not work. The fault is caused by missing or wrong software, or by a damaged PAC. The parking camera does not work while the fault remains.
Possible causes
- Software is missing or wrong in the parking assistance camera module (PAC)
- Damaged parking assistance camera module (PAC)
What you can do
- 1Have a workshop download new software into the parking assistance camera module (PAC)
- 2Erase the fault code and test drive the car to see whether it comes back
- 3If new software does not help, the parking assistance camera module (PAC) needs replacing, which a workshop does
Symptoms you may notice1
- The parking camera does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.