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Symptom: P0846-2/4 PRESSURE SWITCH SENSE CIRCUIT When Monitored and Set Condition: P0846-2/4 PRESSURE SWITCH SENSE CIRCUIT When Monitored: Whenever the engine is running. Set Condition: The appropriate DTC is set if one of the Pressure Switches are open or closed at the wrong time in a given gear . POSSIBLE CAUSES TRANSMISSION RELAY DTC’S PRESENT TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN 2/4 PRESSURE SWITCH SENSE CIRCUIT OPEN 2/4 PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND 2/4 PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE 2/4 PRESSURE SWITCH TRANSMISSION CONTROL MODULE INTERMITTENT WIRING AND CONNECTORS 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. All Continue 373 TRANSMISSION - 42RLE |