GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2002 🢒 Regal 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T65-E 🢒 Wiring Harness Replacement

Removal Procedure
  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .

    2. Object Number: 48209 Size: SH
  2. Use a small flat-bladed tool in order to disconnect the wiring harness from the solenoid valves (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and the temperature sensor (391).

    3. Object Number: 48210 Size: SH
  3. Remove the wiring harness (224).

Installation Procedure

    Object Number: 48210 Size: SH
  1. Install the wiring harness (224).

    2. Object Number: 49409 Size: SH
  2. Connect the wiring harness to the solenoid valves (315A, 315B, 322, 334 and/or 440), TFP manual valve position switch (395) and the temperature sensor (391).
  3. Install the case side cover. Refer to Control Valve Body Cover Replacement .

    4. 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 ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  4. Reset the TAP values. Refer to Adapt Function .