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Symptom: P1734-2C PRESSURE SWITCH SENSE CIRCUIT When Monitored and Set Condition: P1734-2C PRESSURE SWITCH SENSE CIRCUIT When Monitored: Whenever the engine is running. Set Condition: The appropriate code is set if one of the pressure switches are open or closed at the wrong time in a given gear . POSSIBLE CAUSES RELATED RELAY DTC’S PRESENT INTERMITTENT WIRING & CONNECTORS 2C PRESSURE SWITCH SENSE CIRCUIT OPEN TRANSMISSION RELAY OUTPUT CIRCUIT OPEN 2C PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND 2C PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE 2C PRESSURE SWITCH TCM - 2C PRESSURE SWITCH TEST ACTION APPLICABILITY 1 NOTE: Low fluid level can be the cause of many transmission problems. If t, read the engine DTC’s. Check and repair all engine DTC’s prior to performing transmission symptom diagnostics. t, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures. NOTE: Diagnose 1 Trip Failures as a fully matured DTC. 45RFE AUTO TRANS Continue 135 TRANSMISSION |