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P0871-OD PRESSURE SWITCH RATIONALITY (CONTINUED) For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - For a complete wiring diagram Refer to Section 8W • When Monitored: • Set Condition: Possible Causes RELATED RELAY DTC’S PRESENT LINE PRESSURE DTCS PRESENT NO. 4 OR 6 CHECK BALL CUT OR DAMAGED (T9) OD PRESSURE SWITCH SENSE CIRCUIT OPEN (T9) OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND (T9) OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO OTHER CIRCUITS LOW LINE PRESSURE WIRING AND CONNECTORS CUT OD/REV PISTON SEAL BROKEN OR MISSING DO/REV PISTON BLEED ORIFICE BROKEN REACTION SHAFT SUPPORT SEAL RING POOR MACHINING ON PUMP VALVE BODY FACE BROKEN OR MISSING DRIBBLER ORIFICE ASSEMBLY IN REACTION SHAFT SUPPORT TRANSMISSION SOLENOID/TRS ASSEMBLY CUT OD ACCUMULATOR PISTON SEAL CRACKED OD ACCUMULATOR PISTON BROKEN OR MISSING OD BLEED ORIFICE IN MAIN VALVE BODY POWERTRAIN CONTROL MODULE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- HB AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS 21 - 493 |