Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-1300

Condition




The engine control module (ECM) checks the signal from the mass air flow (MAF) sensor.
This diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers a short-circuit to ground or supply voltage or an open-circuit in the sensor circuit.
The diagnostic trouble code (DTC) is diagnosed when the ignition is on.

Substitute value
- A value calculated from engine speed (RPM) and pressure in the intake manifold is used.

Possible source

Signal too high
- Short-circuit to supply voltage in the signal cable
- Damaged mass air flow (MAF) sensor.

Signal too low
- Short-circuit to ground in the signal cable
- Open-circuit in the signal cable
- Damaged mass air flow (MAF) sensor.

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.