P0961

DTC P0961 Pressure control solenoid system A circuit (performance)
DTC P0962 Pressure control solenoid system A circuit (Low)
DTC P0963 Pressure control solenoid system A circuit (High)

Circuit description

Signals from the transmission control computer ASSY change the vehicle speed from 1st to 6th gear according to the combination of the transmission 3 way solenoid ASSY (S1, S2, S3, S4, SR) and the clutch control solenoid No.1 (SL1, SL2). When there is an open or short circuit in the solenoid valve system, the transmission control computer ASSY stops continuity to all solenoids as the fail safe function. As a result, only the mechanical hydraulic circuit is available and the manual shift control is initiated.





Monitor description

This diagnostic code indicates open or short circuit in the shift solenoid valve SL1 circuit. TCM switches ON/OFF of the shift solenoid valve to command shifting. If there is open or short circuit in any of the shift solenoid valve circuits, TCM detects the defect, turns on MIL, and records the diagnostic code.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS
P0961: Linear solenoid 1 (stuck feedback)





P0962: Linear solenoid 1 (short circuit to ground/open circuit)





P0963: Linear solenoid 1 (battery open circuit)





TYPICAL MALFUNCTION THRESHOLDS
P0961: Linear solenoid 1 (stuck feedback)





P0962: Linear solenoid 1 (short circuit to ground/open circuit)





P0963: Linear solenoid 1 (battery open circuit)





Circuit figure





Inspection steps

NOTE:
ON/OFF status when clutch control solenoid No.1 (SL1) is normal (Select lever in D position)