Control Solenoid Valve and Transmission Control Module Assembly Cleaning

Control Solenoid Valve and Transmission Control Module Assembly Cleaning

The control solenoid valve assembly cleaning procedure is a specific software based routine, which resides in the transmission control module (TCM). This procedure is activated by the scan tool and is used to cycle the solenoids and valves in the control solenoid valve assembly in an attempt to dislodge debris and free up the valves after a performance diagnostic trouble code (DTC) has set. When the cleaning procedure is completed, the DTC enable criteria should be run again, to see if the DTC concern has been corrected.

1. Operate the transmission to achieve 25°-90°C (77°-194°F).
2. Initiate the scan tool Service Cleaning Procedure.
3. When the cleaning procedure is completed, vehicle OFF long enough for the TCM to power down.
4. Operate the vehicle based on the criteria specified in Conditions for Running the DTC.
5. Verify the applicable DTC has run and passed to verify if the cleaning procedure was effective.