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Symptom: P0870-OD HYDRAULIC PRESSURE TEST FAILURE When Monitored and Set Condition: P0870-OD HYDRAULIC PRESSURE TEST FAILURE When Monitored: In any forward gear with engine speed above 1000 RPM shortly after a shift and every minute thereafter. Set Condition: After a shift into a forward gear, with engine speed > 1000 RPM, the TCM momentarily turns on element pressure to the clutch ckts that don’t have pressure to POSSIBLE CAUSES LOSS OF PRIME DTC P0944 PRESENT RELATED DTC’S PRESENT INTERMITTENT WIRING AND CONNECTORS TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN OD PRESSURE SWITCH SENSE CIRCUIT OPEN OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND OD PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE INTERNAL TRANSMISSION TRANSMISSION CONTROL MODULE 377 TRANSMISSION - 42RLE |