Circuit/System Testing

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Perform the Line Pressure Check . Verify the transmission line pressures are within the specified ranges.
- If the line pressures are not within the specified ranges
  Refer to Fluid Pressure High or Low .
- If the line pressures are within the specified ranges
Ignition OFF, remove the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement .
Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test . Test all solenoids on the Q8 control solenoid valve assembly. A pressure change should occur for each solenoid.
- If a pressure change does not occur for each solenoid
  Replace the Q8 control solenoid valve assembly.
- If a pressure change does occur for each solenoid
Listed in the chart below are conditions for each component that could set DTC P0751 or P0752. Carefully inspect each component for that condition. Repair or replace as necessary.

DTC	Component	Condition
P0751 P0752	Lower Control Valve Body	Clutch select valve 2 stuck - debris, sediment, binding or scored bore
P0751	Upper Control Valve Body	Bore Plug - Clutch Select Valve 2, Leaking, undersized bore plug, or damaged
P0751	Upper Control Valve Body	Check Ball #2 missing, damaged, or leaking Check Ball #2 Seat damaged or leaking
P0751 P0752	Q8 Control Solenoid Valve Assembly	Shift Solenoid (SS) 1: O-ring seals leaking Control signal fluid supply leak - valve body filter plate assembly cracked or damaged gasket seal