Diagnostic Trouble Code (DTC) Information ECM-100A
Condition
The engine control module (ECM) compares the filtered signal from the pressure sensor to the inlet manifold with the signal from the atmospheric pressure sensor in the engine control module (ECM). The diagnostic trouble code is generated if the it registers that the deviation is greater than 70 hPa.
The diagnostic trouble code can be diagnosed 15 seconds after the ignition is switched.
Substitute Value
If the pressure sensor for the intake manifold is OK, a filtered value from the sensor is used. Otherwise the value is set at 1013 hPa (corresponding to sea level).
Possible Source
- Damaged manifold absolute pressure (MAP) sensor.
- Damaged engine control module (ECM).
Fault symptom[s]
Malfunction indicator light (MIL), on