Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P019300

Condition
The Engine control module (ECM) measures the fuel pressure in the fuel rail using the fuel pressure sensor. The control module checks the direct voltage from the sensor.

Note! The fuel pressure sensor and fuel temperature sensor are integrated in the same component.

The diagnostic trouble code (DTC) is stored if the control module detects that:
- The direct voltage is higher than 4.0 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.

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 control module uses a constant fuel pressure.
- The control module controls the fuel pump, via the fuel pump module, with a constant signal.

Possible source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged fuel pressure sensor.

Fault symptom[s]
- Malfunction indicator light (MIL), on
- Engine misfires