Diagnostic trouble code (DTC) information REM-4F41

Condition

Fig 1: Identifying Parking Assistance Module (PAM)

Courtesy of VOLVO CARS OF NORTH AMERICA.

The rear electronic module (REM) checks communication with the parking assistance module (PAM).

Diagnostic trouble code (DTC) REM-4F41 is stored if the rear electronic module (REM) registers a fault in the communication with the parking assistance module (PAM).

Diagnostic trouble code (DTC) REM-4F41 can be detected when the ignition is on for 5 seconds.

NOTE:

The fault must be corrected and the diagnostic trouble code (DTC) erased before further fault-tracing can be carried out on the parking assistance module (PAM) and its components.

Substitute Value

None.

Possible Source

Fault in power supply wiring/fuse for the parking assistance module (PAM)
Fault in power supply relay for the parking assistance module (PAM)
Fault in the cable between the parking assistance module (PAM) and rear electronic module (REM)
Defective communication device, parking assistance module (PAM)
Defective communication device, rear electronic module (REM).

Fault symptom[s]

The back-up (reversing) warning system does not function.