Pump (203)

Cross channel air leak at body to cover, or cross channel air leak at body to case gasket

Pressure Regulator Valve (231)

Valve is stuck at a low torque signal, due to an undersized bore or to sediment.

Reverse Boost Valve (228)

Valve is stuck at a low torque signal, due to an undersized bore or to sediment.

Pump Valve Bores

Excessive valve clearance due to wear.

Spring (230)

The spring is broken.

Retainer Pin (211)

The pin is broken.

Valve Body (301)

Gasket/Spacer Plate

Plate is damaged or missing.

Pressure Control Solenoid Valve (320)

PCM

Failed

Check the PCM for current DTCs