VOLVO
IHU-U015900 - Lost Communication With Parking Assistance Module (PAM). General Failure Information. No sub type information
System
Infotainment Head Unit (IHU)
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 infotainment head unit (IHU) continually fetches the information it needs from the parking assistance module (PAM) over CAN. The code is stored when communication with the PAM is lost. The check runs while the control module is activated.
Possible causes
- A break in the communication line
- The communication line has been shorted to ground
- The communication line has been shorted to supply voltage
- Contact resistance, oxidation or breaks in the connections
What you can do
- 1Read and clear the code, then check whether it comes back
- 2Check that the fuses are intact
- 3Check that the connectors at the parking assistance module connections are firmly seated and free from oxidation
- 4Check the communication wiring for chafing and damage, especially where it may have been harmed while work was done on the car
- 5If the fault remains, have a workshop trace the communication line further. Faulty communication can come from another control module on the same part of the CAN network
Symptoms you may notice1
- Warning symbol and text message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.