For 1990-2009 cars

### Removal Procedure

1. Remove the Transmission fluid pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement.
2. Disconnect the transmission wiring harness electrical connector (1) from the transmission by rotating the locking latch (2) counterclockwise.
3. Disconnect the transmission internal wiring harness from components (1-8).
4. Remove the transmission internal wiring harness retainer (2) from the transmission internal wiring harness (1).
5. Remove the transmission internal wiring harness (2) from the transmission.
6. Remove the O-ring seals (3) from the internal wiring harness (2) only if the O-rings are cut or worn.

### Installation Procedure

1. Install the internal wiring harness (2) to the transmission.
2. Install the transmission internal wiring harness retainer (2) to the internal wiring harness (1).
3. Connect the transmission internal wiring harness to components (1-8).
4. Connect the transmission wiring harness electrical connector (1) to the transmission by rotating the locking latch (2) clockwise.
5. Install the Transmission fluid pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement.

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 or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
6. Reset the TAP values. Refer to Transmission Adaptive Functions.