VOLVO
UEM-003D - Cargo compartment lighting/3rd row reading lamps. Faulty signal
System
Upper Electronic Module (UEM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsV70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (3)
What does this fault code mean?
This code applies, depending on model, the cargo compartment lighting on the V70 and XC70, and the third-row reading lamps on the XC90. It is set when the control signal is too high. The cause is either the supply cable having contact with voltage or a break in it.
Possible causes
- The supply cable to the cargo compartment lighting or the third-row reading lamps has a short circuit to voltage
- Break in the supply cable to the cargo compartment lighting or the third-row reading lamps
What you can do
- 1Read off the code, clear it and check whether it returns.
- 2Check that the connectors at the lamp and the upper electronic module are firmly seated and not corroded.
- 3With a multimeter you can check that the supply cable has no contact with battery voltage.
- 4Use a multimeter to check that the cable is not broken.
- 5If the fault remains, have a workshop check the cable and the grounding of the lamps.
Symptoms you may notice2
- The cargo compartment lighting does not work
- The interior lighting does not work
What the fault can affect1
- The cargo compartment lighting or the third-row reading lamps are switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.