VOLVO
PAC-B100E81 - Video Input "A". Bus Signal / Message Failures. Invalid serial data received
System
Powertrain (Engine & Gearbox)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The parking assistance camera module (PAC) passes the picture from the camera on to the control module for the front display. The fault is set when the video signal is faulty. The fault can come from a loose connection where the video cable attaches, a damaged wire, a damaged camera or a damaged control module.
Possible causes
- Poor contact where the video cable attaches to the camera or control module
- Damaged wire
- Damaged camera
- Damaged control module
What you can do
- 1Check that the fuses are intact and that the video cable connectors are firmly seated and not oxidised
- 2Check that the wire between the camera and the control module is not chafed or damaged
- 3Read out and erase the fault code, test drive with reverse gear engaged and see whether it comes back
- 4If the fault remains, have a workshop check the camera and the control module
Symptoms you may notice1
- Front and rear park assist does not work
What the fault can affect1
- The control module for the front display (HLDF) shows a single-colour picture
General guidance for car owners. Diagnosis on the car can point to a different cause.