Diagnostic Trouble Code (DTC) Information

ECM-405A FUEL LEVEL SENSOR
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION

Condition
The rear electronic module transmits information to the central electronic module (CEM) via the control area network (CAN) about the fuel level and the fault status of the fuel level sensor. The central electronic module (CEM) transmits this information to the engine control module (ECM).

Diagnostic trouble code (DTC) REM-4A31 or REM-4A35 is stored in the rear electronic module if the rear electronic module has registered a faulty signal from the fuel level sensor. Diagnostic trouble code (DTC) ECM-405A is also stored in the engine control module (ECM) (faulty signal).

The engine control module (ECM) compares the engine fuel consumption with fuel level in the fuel tank. The rear electronic module registers the fuel level in the fuel tank. Diagnostic trouble code (DTC) ECM-405A is stored in the engine control module (ECM) (faulty signal) if the engine control module (ECM) registers that the fuel consumption is outside the permitted range in comparison to how much the fuel level in the fuel tank is falling.

Substitute value
None.

Possible source

Faulty signal:
- defective fuel level sensor.

Fault symptom[s]
None.