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)

VCM/PCM

Failed

Check the VCM/PCM for current DTCs