Hva betyr feilkode CEM-1A5F?

Diagnose og feilkodedefinisjon for CEM-1A5F (Volvo S60 (2001–2009), Volvo S80 (1999–2006), Volvo V70 (2000–2008)). Bestill reparasjon hos OBD Tuning.

VOLVO

CEM-1A5F - Communication with the brake control module (BCM). Signal missing

System

Sentral elektronikk (CEM)

Volvo-modeller feilkoden gjelder for

Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.

Gjelder følgende modeller:

5 modeller

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

Vis modeller per årsmodell og motor (5)

Hva betyr feilkoden?

The central electronic module (CEM) has lost the link to the brake control module (BCM) and sets this code. The BCM controls, among other things, the ABS function, so the ABS warning lamp may light and ABS may be lost. The fault lies in the communication, not in the CEM, so the CEM should not be replaced.

Mulige årsaker

The BCM is not getting power
The ground wire to the BCM is broken
Contact resistance in the connections
Broken CAN wiring to the BCM
Wrong BCM for this car, for example a used module with different software or hardware
A common CAN network fault if several communication faults are stored at the same time

Hva du kan gjøre

1Switch the ignition on and check that the ABS warning lamp goes out after a moment. If it stays lit, the fault is still present
2Check the BCM fuses. If one has blown, replace it once. If it blows again, use a multimeter to check the wire after it has no contact with ground.
3Check that the connectors to the BCM are seated and free of corrosion, chafing or damage. Check that the ground wire is tight and clean
4Use a multimeter to check that the wires to the BCM have no break. If the fault remains, read the module ID with a diagnostic tool if you have one
5Safety: the brake control module affects the brakes, so have a workshop fix the fault promptly and do not work on the brake system yourself.

Symptomer du kan merke3

The ABS warning lamp is lit
ABS function is lost
A message appears in the display

Hva feilen kan påvirke1

No ABS function

Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.

Vanlige kombinasjoner

CEM-1A5F

CEM-A02B

CEM-DF12

CEM-1A5F, CEM-A02B, CEM-DF12 Volvo P3 – Central Electronic Module LIN-Buss 2 Teknisk Veiledning

VOLVO • 188 analyser

CEM-3A00