VOLVO
CEM-8A35 - Gas discharge lamp module (GDL) left-hand. Faulty position
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (4)
What does this fault code mean?
The left-hand gas discharge lamp module (GDL) registers that it is installed on the right-hand side. The code is also stored when a new module is fitted on the left-hand side. The low beam may then work poorly or not at all.
Possible causes
- The left-hand GDL module is fitted on the right-hand side
- New gas discharge lamp module (GDL) fitted on the left-hand side
What you can do
- 1With the ignition off, check that the connectors at the left-hand module are clean, firmly fitted and undamaged
- 2Check that the left-hand module has not been fitted on the right-hand side. Each module must sit on its own side
- 3If a new module has been fitted on the left-hand side, it needs programming and the position sensors must be calibrated. This is a workshop task
- 4Clear the code after checking and do a test drive to see whether it returns
Symptoms you may notice2
- The low beam does not work
- The low beam works at some times and not at others
General guidance for car owners. Diagnosis on the car can point to a different cause.