Neutral - Engine Running

Neutral - Engine Running

When the gear selector lever is moved to the Neutral (N) position, the hydraulic and electrical system operation is identical to Park (P) range. However, if Neutral is selected after the vehicle was operating in Reverse (R), the following changes would occur in the hydraulic system:

Variable Low and 1-2 Reverse Clutch Releases

Pressure Control (PC) Solenoid 3 Trim

The PC solenoid 3 trim is de-energized (OFF) allowing PCS 3 signal fluid to exhaust from the variable low and 1-2 reverse and 4th clutch regulator valve; the variable low and 1-2 reverse and 4th clutch boost valve; and the shift solenoid valve - mode B.

Variable Low and 1-2 Reverse Clutch Assembly

VL 12 reverse clutch fluid exhausts from the variable low and 1-2 reverse clutch to the shift solenoid valve - mode B allowing the hybrid low, 1-2 clutch to release.

Shift Solenoid Valve - Mode B

VL 12 reverse clutch fluid passes through the shift solenoid valve - mode B and into the VL 12 reverse/4th clutch feed fluid circuit and is routed to the variable low and 1-2 reverse and 4th clutch regulator valve.

Variable Low and 1-2 Reverse and 4th Clutch Boost Valve

Variable low and 1-2 reverse and 4th clutch boost valve spring force moves the variable low and 1-2 reverse and 4th clutch boost valve to the released position, allowing VL 12 reverse/4th clutch feedback fluid pressure to exhaust into the VL 12 reverse/4th clutch feed circuit.

Variable Low and 1-2 Reverse and 4th Clutch Regulator Valve

Variable low and 1-2 reverse and 4th clutch regulator valve spring force moves the variable low and 1-2 reverse and 4th clutch regulator valve to the released position, allowing VL 12 reverse/4th clutch feed fluid pressure to exhaust through the valve into the exhaust backfill circuit.

Transmission Fluid Temperature (TFT) Sensor

Fluid pressure in the exhaust backfill circuit exhausts at the TFT sensor.

Shift Accumulation

Variable Low and 1-2 Reverse Clutch Accumulator

VL 12 reverse clutch fluid also exhausts from the variable low and 1-2 reverse clutch accumulator assembly. Accumulator spring force moves the variable low and 1-2 reverse clutch accumulator piston to the released position.

Neutral - Engine Running