Diagnostic Trouble Code (DTC) Information ECM-130B: Notes
Condition
This diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects a short-circuit to ground or supply voltage or an open-circuit in the mass air flow (MAF) sensor circuit.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched 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
- Jerky operation.