Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
Diagnostic trouble code (DTC) REM-4A40 is stored if the rear electronic module registers that the signal on the signal cable from the gas temperature sensor is too high.
Diagnostic trouble code (DTC) REM-4A40 can be diagnosed when the ignition is on.

Substitute value
- The fuel level is set to zero.

Possible source
- Short-circuit to supply voltage in the signal cable
- Open-circuit in the signal cable
- Defective gas temperature sensor.

Fault symptom[s]
- The fuel level gauge does not function
- The trip computer displays an empty fuel tank too early.