Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P019126

Condition




The engine control module (ECM) checks the signal from the fuel pressure sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal from the fuel pressure sensor does not change when fuel pump activation changes.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Normal driving for least 15 minutes and preferably after a start and stop.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Substitute value
- The fuel pressure is set to a constant.
- The control signal to the fuel pump (FP) control module is set to a calculated value.

Possible source
- Contact resistance in the connectors.
- Damaged fuel pressure sensor.
- Damaged fuel pump module.

Fault symptom[s]
- Driving/Poor performance/lacks power/At take off
- Starting/Engine stalls
- Driving/Poor performance/lacks power
- Driving/Hesitates/surges/Unsure when/at all times
- Driving/Hesitates/surges/During acceleration
- Driving/Hesitates/surges/During deceleration
- Driving/Engine stalls/Unsure when/at all times
- Driving/Hesitates/surges/At steady speed
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication