C 2500 Truck 2WD V8-379 6.2L DSL VIN J FI (1992)
Shift Solenoid: Description and Operation
Shift Solenoid "B"
Shift Solenoid "B" Circuit
Purpose:
The Shift solenoid, when activated redirects fluid to act upon the shift valves.
Operation:
The PCM/TCM activates the solenoid by grounding it through an internal quad driver. Solenoid "B" is ON in 3rd and 4th gear, but OFF in 1st and
2nd gears. The shift solenoid "B" is usually red in color.
Location:
Shift Solenoid "B" is attached to the valve body.
