Circuit/System Testing
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- Perform the Line Pressure Check . Verify the transmission line pressures are within the specified ranges.
- If not within the specified ranges, refer to Fluid Pressure High or Low .
- 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 valve.
- If the Q8 control solenoid valve assembly does not pass the performance test, replace the Q8 control solenoid valve assembly.
- Listed in the chart below, are conditions for each component that could set DTC P2723 or P2724. Carefully inspect each component for that condition. Repair or replace as necessary.
DTC P2723 or P2724
| DTC | Component | Condition |
|---|---|---|
| P2723 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) | DTC P2723 may be set with DTC P0878 |
| P2723 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 |
| P2723 | 1-2-3-4 and 3-5-R Clutch Housing Assembly (51) | Housing / hub weld cracked / leaking |
| P2723 | 1-2-3-4 and 3-5-R Clutch Housing Assembly (51) | 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 |