Valve Body: Description
The Transmission Control Module (TCM), or Transmission Control Module Assembly (TCMA) is extremely sensitive to Electrostatic Discharge (ESD). Always use a ground strap and follow the ESD guidelines in ELECTROSTATIC DISCHARGE SENSITIVE DEVICES. Failure to follow these instructions may result in damage to the TCM/TCMA.
The valve body includes the Transmission Control Module (TCM), all solenoids and sensors, and can be referred to as the Transmission Control Module Assembly (TCMA). The TCM is attached to the valve body between the transmission case and the valve body.
The following components are integral to the valve body and are only serviced by replacing the valve body assembly:
- Transmission Control Module (TCM)
- Park Release Mechanical Valve
- Transmission Sensors:
- Transmission Temperature Sensor
- Input Speed Sensor (ISS)
- Output Speed Sensor (OSS)
- Park Position Sensor
- Transmission Solenoids:
- Torque Converter Clutch (TCC) Solenoid
- Line Pressure Solenoid
- Park Release Solenoid
- Park Hold Mechanical Solenoid
- Solenoid A
- Solenoid B
- Solenoid C
- Solenoid D
- Solenoid E
For replacement of the TCMA (valve body). Refer to VALVE BODY, REMOVAL .