Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-125C

Condition




The engine control module (ECM) checks the signal from the boost pressure sensor.
The diagnostic trouble code (DTC) is stored if the signal from the boost pressure sensor is higher than a certain value for a certain amount of time. The diagnostic trouble code (DTC) can be diagnosed at ignition on and with the engine running.

Substitute value
- Limited boost pressure.

Possible source
- Contact resistance or oxidation in the terminals
- Short-circuit to supply voltage in the signal cable
- Open-circuit in the signal cable
- Open-circuit in the signal ground cable
- Damaged boost pressure sensor.

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