VOLVO
BCM-U042041 - Invalid Data Received From Power Steering Control Module (PSCM). System Internal Failures. General checksum failure
System
Brake Control Module (BCM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsV40 (2013–), V40 Cross Country (2013–)
Show models by year and engine (2)
What does this fault code mean?
The brake control module (BCM) has received faulty data from the power steering control module (PSCM), which sends information on the CAN bus that other systems use. The code shows that the PSCM has an internal fault. Cornering assistance is blocked, but the driver often notices nothing.
Possible causes
- Internal fault in the power steering control module (PSCM)
What you can do
- 1Read codes in the power steering control module and troubleshoot them according to the system information
- 2Do not replace the brake control module for this code, as the fault lies in the power steering module
- 3Check that the power steering works normally after a road test
- 4Steering and brakes are safety-critical, so have a workshop carry out any work on the power steering and the brake control module
Symptoms you may notice1
- No clear symptoms for the driver
What the fault can affect1
- Cornering assistance (DSR) is disabled
General guidance for car owners. Diagnosis on the car can point to a different cause.