Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.

Verify the transmission line pressures are within the specified ranges. Refer to Line Pressure Check .
- If pressures are not within range
  Refer to Fluid Pressure High or Low .
- If pressures are within range
Ignition OFF. Remove the Q8 Control Solenoid Valve Assembly.
Verify a pressure change occurs for each solenoid when performing the solenoid test. Refer to Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test .
- If a pressure change does not occur
  Replace the Q8 Control Solenoid Valve Assembly.
- If a pressure does occur
Verify the conditions listed below do not exist. Carefully inspect each component for that condition. Repair or replace as necessary.

P2723 or P2724 - Control Valve Upper Body Assembly (304)

1-2-3-4 Clutch Regulator Valve (337) stuck/sticking - debris, binding, damaged valve, or scored bore.

P2723 - Q8 Control Solenoid Valve Assembly (314)

Refer to document PIP 4304A. DTC P2723 may be set with DTC P0878.

P2723 or P2724 - Q8 Control Solenoid Valve Assembly (314)

P2723 - Control Valve Upper Body Assembly (304)

Clutch Select Valve 3 (352) stuck/sticking - debris, binding, damaged valve, or scored bore.

P2723 - A/Trans Fluid Pump Cover Assembly (219)

Pump Tower Seals (230) damaged/leaking.

P2723 - 1-2-3-4 and 3-5-R Clutch Housing Assembly (51)

1-2-3-4 Clutch Piston (414) cracked/damaged/leaking.
Housing/hub weld cracked/leaking.
1-2-3-4 Clutch Backing Plate Retaining Ring (429) not seated/oriented, causing clutch pack/piston over travel.

P2723 - Control (with body and valve) Valve Assembly (21)

Valve Body to Pump Transfer Seal Assembly (19) damaged/leaking.

P2723 - Torque Converter (w/Fluid Pump) Housing Assembly (2)

P2723 - Automatic Transmission Fluid Filter Assembly (26)

Oil filter (26) or filter seal (25) loose or damaged.