VOLVO
PSCM-U30031C - Battery Voltage. General Electrical Failures. Circuit voltage out of range
System
Power Steering Control Module (PSCM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2011–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–)
What does this fault code mean?
The voltage supplied to the control module is incorrect, and the fault code is set while this is the case. The cause may lie in the battery, in the connectors or in the supply wire.
Possible causes
- Contact resistance or oxidation in the connections
- Voltage supply wire shorted to voltage
- Voltage supply wire shorted to ground
- Open circuit in the voltage supply wire
- Damaged battery
What you can do
- 1Read and note the fault code, clear it and road test
- 2Check the battery condition and voltage
- 3Check that the fuses are intact
- 4Check the connectors in the supply for oxidation and loose fit
- 5Use a multimeter to check that the supply wire is not shorted to earth or voltage and is not open
- 6Because steering is safety-critical, have a workshop check the car if it feels abnormal
Symptoms you may notice3
- Warning symbol and message in the display
- Steering requires extra or uneven effort
- Other steering or handling problems can be felt
What the fault can affect1
- Steering works with reduced function
General guidance for car owners. Diagnosis on the car can point to a different cause.