Valve Body: Operation: Operation
WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
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 (ESD) SENSITIVE DEVICES. Failure to follow these instructions may result in damage to the TCM/TCMA.
The TCM will actuate the valves via solenoids based on the position of the shifter, transmission fluid temperature, engine operating conditions, traction conditions, and driver demands. During a shift, the TCM will actuate the solenoids to match the gear ranges to the optimal torque range of the engine based on the position of the accelerator pedal, shifter, and vehicle speed as determined by the PCM based on input from the Vehicle Speed Sensor (VSS) and ABS module.
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| 1. Check ball |
8. Piston |
| 2. Rocker ball |
9. Valves |
| 3. Check ball |
10. Valve |
| 4. Valves |
11. Adapter |
| 5. Filter |
12. Screen |
| 6. Valve |
13. Pistons |
| 7. Pressure spring |
14. Check ball |
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| 1. Priming valve |
5. Clutch valve - E clutch |
| 2. Park pawl release valve |
6. Holding valve - E clutch |
| 3. Holding valve - C clutch |
7. Clutch valve - D clutch |
| 4. Clutch valve - C clutch |
8. Clutch valve - A clutch |
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| 1. Parking pawl release piston |
4. Torque converter clutch valve |
| 2. Line pressure valve |
5. Clutch valve - B clutch apply |
| 3. Switching valve - torque converter |
6. Holding valve - B clutch apply |
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| 1. Holding valve - D clutch |
4. Holding valve - B clutch release |
| 2. Holding valve - A clutch |
5. Torque converter pressure valve |
| 3. Clutch valve B clutch NIC |
6. Position valve |