Control Solenoid Valve Assembly Inspection - Solenoids, Sensors, and Contacts
WARNING: This page is about a different variant/trim than selected.
Fig 1: View Of Control Solenoid (w/Body & TCM) Valve Assembly Inspection - Solenoids, Sensors & Contacts
| Callout | Component Name |
|---|---|
| 1 | Pressure Control Solenoid 3 (PCS3) |
| 2 | Pressure Control Solenoid 4 (PCS4) |
| 3 | Pressure Control Solenoid 2 (PCS2) |
| 4 | Shift Solenoid 2 (SS2) |
| 5 | Torque Converter Clutch (TCC) Solenoid |
| 6 | Pressure Control Solenoid 5 (PCS5) |
| 7 | Pressure Control Solenoid 1 (PCS1) |
| 8 | Shift Solenoid 1 (SS1) |
| 9 | Transmission Fluid Temperature (TFT) Sensor |
| 10 | Input Speed Sensor/Output Speed Sensor (ISS/OSS) Connector |
| 11 | Pressure Control Solenoid 3 (PCS3) Contact Lead |
| 12 | Pressure Control Solenoid 4 (PCS4) Contact Lead |
| 13 | Pressure Control Solenoid 2 (PCS2) Contact Lead |
| 14 | Shift Solenoid 2 (SS2) Contact Lead |
| 15 | Torque Converter Clutch (TCC) Solenoid Contact Lead |
| 16 | Pressure Control Solenoid 5 (PCS5) Contact Lead |
| 17 | Pressure Control Solenoid 1 (PCS1) Contact Lead |
| 18 | Shift Solenoid 1 (SS1) Contact Lead |
| 19 | Internal Mode Switch (IMS) Connector |
| 20 | Metallic Slivers, Debris or Sediment |
- With the filter plate removed, the control solenoid valve assemblies (1-8) can be inspected. Closely examine the solenoid electrical contact lead solder connections (11). Look for material that could make contact between the electrical leads. This is where material particles, metallic slivers, debris or sediment can collect. Carefully inspect all sixteen solenoid electrical contact leads (11) for build up of material that could form an electrical short. Inspect the solenoid contact leads (11) for terminal separation or weak solder joints. Thoroughly flush away all debris with GM Brake Parts Cleaner.
- Inspect the transmission fluid temperature (TFT) sensor (9), the input speed sensor/output speed sensor (ISS/OSS) connector (10), and the internal mode switch (IMS) connector (12). Look inside the connector cavities for material that could make contact between the electrical pins. Also look for bent or loose electrical pins. If the TFT sensor (9) is heavily coated with clutch soot, rinse with GM Brake Parts Cleaner.
- Check the resistance of the solenoids at room temperature and verify with the following table. If the resistance is not within the expected range, carefully inspect the solenoid contact leads.
Solenoid Resistance
| Solenoid Name | Illustration Number of Solenoid Lead | Expected Resistance (Ohms) |
| Pressure Control Solenoid 3 (PCS3) | 11 | 4.5 - 5.5 Ω |
| Pressure Control Solenoid 4 (PCS4) | 12 | 4.5 - 5.5 Ω |
| Pressure Control Solenoid 2 (PCS2) | 13 | 4.5 - 5.5 Ω |
| Shift Solenoid 2 (SS2) | 14 | 23.5 - 24.5 Ω |
| Torque Converter Clutch (TCC) Solenoid | 15 | 4.5 - 5.5 Ω |
| Pressure Control Solenoid 5 (PCS5) | 16 | 4.5 - 5.5 Ω |
| Pressure Control Solenoid 1 (PCS1) | 17 | 4.5 - 5.5 Ω |
| Shift Solenoid 1 (SS1) | 18 | 23.5 - 24.5 Ω |