REM-1A01

Condition

If the control unit registers that the power supply to the rear electronic module (REM) is more than three volts below the power supply to the central electronic module (CEM), the diagnostic trouble code is displayed.

Substitute value

- None.

Possible source

- Open circuit or short circuit to ground on 30 supply to rear electronic module (REM).
- Contact resistance, oxidation or loose contact on 30 supply to rear electronic module (REM).

Fault symptom[s]

- Boot lighting is faint.
- Rear lights do not work.
- Central locking does not work on rear doors and boot lid.
- Heated rear window does not work.