Solenoid and Clutch Chart
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Solenoid and Clutch Chart
| Range Status | Logic State | Clutch to Line | Trim Solenoids | Shift Solenoids | TCC Sol. | |||
|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | |||
| Steady State | R | - | De-energized; C5 Applied | Energized; C3 Applied | ON | ON | ON | OFF |
| Garage Shift | R-N | - | De-energizing; C5 Applied | Energizing; C3 Trimming Off | ON | ON | ON | OFF |
| Garage Shift | N-R | - | De-energizing; C5 Trimming On | Energizing; C3 Trimming On | ON | ON | ON | OFF |
| Steady State | N or P | - | De-energized; C5 Applied | De-energized; - Exhausted | ON | ON | ON | OFF |
| Up Shift | N-1 | - | De-energized; C5 Applied | Energized; C1 Trimming On | ON | ON | ON | OFF |
| Down Shift | 1-N | - | De-energized; C5 Applied | Energized; C1 Trimming Off | ON | ON | ON | OFF |
| Steady State | 1 | C1 | De-energized; C5 Applied | De-energized; C4 Exhausted | OFF | ON | OFF | OFF |
| Up Shift | 1-2 | C1 | Energized; C5 Trimming Off | Energized; C4 Trimming On | OFF | ON | OFF | OFF |
| Down Shift | 2-1 | C1 | Energized; C5 Trimming On | Energized; C4 Trimming Off | OFF | ON | OFF | OFF |
| Steady State | 2 | C1 | Energized; C3 Exhausted | Energized; C4 Applied | OFF | OFF | OFF | Engine RPM Dependent ON or OFF |
| Up Shift | 2-3 | C1 | De-energized; C3 Trimming On | De-energized; C4 Trimming Off | OFF | OFF | OFF | ON |
| Down Shift | 3-2 | C1 | De-energized; C3 Trimming Off | De-energized; C4 Trimming On | OFF | OFF | OFF | ON |
| Steady State | 3 | C1 | De-energized; C3 Applied | De-energized; C2 Exhausted | ON | OFF | OFF | ON |
| Up Shift | 3-4 | C1 | Energized; C3 Trimming Off | Energized; C2 Trimming On | ON | OFF | OFF | ON |
| Down Shift | 4-3 | C1 | Energized; C3 Trimming On | Energized; C2 Trimming Off | ON | OFF | OFF | ON |
| Steady State | 4 | C2 | Energized; C3 Exhausted | Energized; C1 Applied | ON | OFF | ON | ON |
| Up Shift | 4-5 | C2 | De-energized; C3 Trimming On | De-energized; C1 Trimming Off | ON | OFF | ON | ON |
| Down Shift | 5-4 | C2 | De-energized; C3 Trimming Off | De-energized; C1 Trimming On | ON | OFF | ON | ON |
| Steady State | 5 | C2 | De-energized; C3 Applied | Energized; Main Knock Down | * | OFF | ON | ON |
| * C switch remains in the ON state until the transmission reaches 1,000 RPM. At 1,000 RPM, C switch changes to the OFF state and remains in the OFF state until the transmission output speed falls below 800 RPM. | ||||||||