Removal Procedure

Fig 1: View Of TFP Manual Valve Position Switch

Courtesy of GENERAL MOTORS CORP.

Remove the case side cover. Refer to Control Valve Body Cover Replacement .
Disconnect the transaxle wiring harness.
Remove the control valve body bolts (375, 379, 381) that mount the fluid pressure manual valve position switch to the control valve body (300).

IMPORTANT: When removing the transmission fluid pressure (TFP) switch handle the switch carefully, the fluid pressure manual valve position switch is very delicate.

Carefully remove the fluid pressure manual valve position switch (395).
Inspect the fluid pressure manual valve position switch (395) for the following conditions:
- Damaged electrical connector terminals
- Damaged seals
- Damaged switch membranes
- Debris on the switch membranes