Diesel Data: Automotive Repair

4T45-E - Automatic Transaxle



Wiring Harness Replacement

Tools Required

J 41101 Transaxle Connector Remover

Removal Procedure

1. Remove the transmission from the vehicle.
2. Remove the transmission side cover.
3. Remove the control valve body.




4. Push the J 41101 onto the pass-through connector from the outside of the transmission case in order to compress the pass-through connector's retaining tabs.
5. With the retaining tabs compressed, use a screwdriver in order to remove the pass-through connector through the inside of the transmission case.
6. Remove the wiring harness (11).

Installation Procedure




1. Connect the wiring harness assembly to the following components:

* The TFP switch assembly (13)
* The pressure control solenoid (312) (red connector)

Important: The 1-2 shift solenoids wires are red and light green. The 2-3 shift solenoid wires are red and yellow.

* The 1-2 shift solenoid (305) (white connector)
* The 2-3 shift solenoids (305) (white connectors)
* The TCC solenoid (335)

2. Install the control valve body.
3. Install the transmission side cover.
4. Install the transmission.

Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM) or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

5. Reset the TAP values. Refer to Transmission Adaptive Functions.