Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P066900

Condition
Engine control module (ECM) measures the temperature internally in the control module using a temperature sensor. The control module checks the direct voltage from the sensor.

Note! The temperature sensor is integrated in the Engine control module (ECM).

The diagnostic trouble code (DTC) is stored if the control module detects that:
- The direct voltage is higher than 4.496 V.
- Incorrect value runs longer than 10 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 internal temperature, +60 °C.
- The control module controls the cooling fan (FC) according to pre-defined speed.
- Fuel trim disabled.

Possible source
- Damaged engine control module (ECM).

Fault symptom[s]
- None