Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P023600

Condition
The Engine control module (ECM) regulates the turbo pressure using a turbo control valve.
The control module has integrated functions to check the function of the turbo control valve.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The turbo pressure is too high, compared with the internal calculating models in the control model.
- The difference between the atmospheric pressure and the pressure in the intake manifold (before the throttle unit) at idle is greater than a value that can be calibrated.
- The difference in pressure before and after the throttle module, during large throttle openings, is greater than a value that can be calibrated.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Normal load (driving).
- Intake pressure is greater than atmospheric pressure.

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
- Initial boost pressure or a calculated boost pressure is used.

Possible source
- Damaged atmospheric pressure sensor.
- Damaged boost pressure sensor.
- Damaged air pressure sensor in the inlet manifold.

Fault symptom[s]
- Driving/Poor performance/lacks power