Transmission Solenoid Information
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
GEN 1
| Valve Body Bore Location / Call Out | Component Code / Name | Function | Type | Resistance Value @ 20°C (68°F) |
|---|---|---|---|---|
| 6 | Q77A Transmission Control Solenoid Valve 1 | Clutch Control C1 (1 - 2 - 3 - 4 - 5 - 6 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| 3 | Q77B Transmission Control Solenoid Valve 2 | Clutch Control C2 (1 - 2 - 8 - 9 - 10 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| 4 | Q77C Transmission Control Solenoid Valve 3 | Clutch Control C3 (2 - 3 - 4 - 5 - 7 - 9 - 10) | Linear, Normally Low | 5.0 to 5.4 ohms |
| 1 | Q77D Transmission Control Solenoid Valve 4 | Clutch Control C4 (4 - 5 - 6 - 7 - 8 - 9 - 10 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| 2 | Q77E Transmission Control Solenoid Valve 5 | Clutch Control C5 (1 - 3 - 5 - 6 - 7 - 8 - 9) | Linear, Normally Low | 5.0 to 5.4 ohms |
| 5 | Q77F Transmission Control Solenoid Valve 6 | Clutch Control C6 (1 - 2 - 3 - 4 - 6 - 7 - 8 - 10 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| 8 | Q77G Transmission Control Solenoid Valve 7 | Torque Converter Clutch | Variable Force, Normally Low | 5.0 to 5.4 ohms |
| 7 | Q77H Transmission Control Solenoid Valve 8 | Line Pressure | Variable Force, Normally High | 5.0 to 5.4 ohms |
GEN 2
| Valve Body Bore Location / Call Out | Component Code / Name | Function | Type | Resistance Value @ 20°C (68°F) |
|---|---|---|---|---|
| A | Q77A Transmission Control Solenoid Valve 1 | Clutch Control C1 (1 - 2 - 3 - 4 - 5 - 6 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| B | Q77B Transmission Control Solenoid Valve 2 | Clutch Control C2 (1 - 2 - 8 - 9 - 10 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| C | Q77C Transmission Control Solenoid Valve 3 | Clutch Control C3 (2 - 3 - 4 - 5 - 7 - 9 - 10) | Linear, Normally Low | 5.0 to 5.4 ohms |
| D | Q77D Transmission Control Solenoid Valve 4 | Clutch Control C4 (4 - 5 - 6 - 7 - 8 - 9 - 10 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| E | Q77E Transmission Control Solenoid Valve 5 | Clutch Control C5 (1 - 3 - 5 - 6 - 7 - 8 - 9) | Linear, Normally Low | 5.0 to 5.4 ohms |
| F | Q77F Transmission Control Solenoid Valve 6 | Clutch Control C6 (1 - 2 - 3 - 4 - 6 - 7 - 8 - 10 - R) | Linear, Normally Low | 5.0 to 5.4 ohms |
| T | Q77H Transmission Control Solenoid Valve 8 | Torque Converter Clutch | Variable Force, Normally Low | 5.0 to 5.4 ohms |
| AB | Q77G Transmission Control Solenoid Valve 7 | Line Pressure | Variable Force, Normally High | 5.0 to 5.4 ohms |
| 1 | M123 Transmission Park Valve Lock Solenoid Actuator | - | - | 15 to 25 ohms |
| 2 | B316 Transmission Park Valve Position Switch | Transmission Park Valve Position Sensor 1 | 0.78 to 0.82 V | 1.98 to 2.02 V |
| Transmission Park Valve Position Sensor 2 | 0.78 to 0.82 V | 1.98 to 2.02 V |
AUX
| Call Out Number | Component Code | TCM Scan Tool Parameter | Type | Resistance Value @ 20°C (68°F) |
|---|---|---|---|---|
| 1 | Q77J Transmission Control Solenoid Valve 9 | Default Disable * Solenoid is needed to achieve 2nd, 7th and Reverse when a fault is present. |
ON/OFF | 5.0 to 5.4 ohms |
| 2 | B315A Transmission Range Control Valve 1 Position Switch | Transmission Range Control Valve 1 Position Switch Status | - | - |