What does fault code CEM-8F06 mean?

Diagnostic fault code details for CEM-8F06 (Volvo S60 (2001–2009), Volvo S80 (1999–2006), Volvo V70 (2000–2008)). Repair service at OBD Tuning.

VOLVO

CEM-8F06 - Switch, hazard warning signal flashers. Signal missing

System

Central Electronic Module (CEM)

Volvo models this fault code applies to

Applies to the following models:

5 models

S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)

Show models by year and engine (5)

What does this fault code mean?

The CEM monitors the hazard warning button. The code is set when that signal is missing, which is caused by an open circuit in the circuit to the button. The fault is intermittent and may not be present now, but the hazard flashers then do not work.

Possible causes

Open circuit in the circuit to the hazard warning switch

What you can do

1Check the hazard warning fuse
2Check the connector at the hazard warning button for oxidation and loose connections
3With the ignition off, use a multimeter to check that the wire between the button and the module is unbroken
4If the fault returns, have a workshop check the circuit and the module

Symptoms you may notice1

The hazard flashers do not work

General guidance for car owners. Diagnosis on the car can point to a different cause.