Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information TCM-P089400

Condition
The driving section of the transmission is disengaged when certain conditions are met:
- Stationary.
- The engine is idling.
- The brake pedal depressed.
- Gear selector in position D.
The function decreases fuel consumption and vibration from the transmission when running the engine at idle speed.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Engine jerks or runs unevenly during engagement.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Normal driving.

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
- None.

Possible source
- Mechanical fault in the transmission.
- Hydraulic fault in the transmission.

Fault symptom[s]
- Driving/Hesitates/surges/At steady speed
- Automatic transmission/Shifts rough or jerky/Unsure when/at all times