Diagnostic trouble code (DTC) information REM-E010

Condition 

Fig 1: Identifying Battery

Courtesy of VOLVO CARS OF NORTH AMERICA.

The rear electronic module (REM) compares its supply voltage with the information about the supply voltage to the central electronic module (CEM) transmitted on the CAN network.

The diagnostic trouble code (DTC) is stored if the rear electronic module (REM) registers that its own power supply is more than 3V below the power supply to the central electronic module (CEM).

The diagnostic trouble code (DTC) can be diagnosed when the engine is running.

Substitute Value 

• None.

Possible Source 

• Half-burned fuse for the rear electronic module (REM)
• Damaged power supply cable to the rear electronic module (REM)
• Loose connections in the ground lead for the rear electronic module (REM)
• Contact resistance or oxidation in the terminals.

Fault symptom[s] 

• The central locking system does not function at all.
• The fuel gauge indicates zero even though there is fuel in the tank.
• Rear demist does not operate.
• Retractable headrest not operating.
• Does not lock / unlock the fuel tank filler cap.
• The power window mechanism in the rear door does not operate.
• The tail lamps are not working.