P0989

DTC P0989 Transmission Fluid Pressure Switch No. 3 Circuit Low

DTC P0990 Transmission Fluid Pressure Switch No. 3 Circuit High

DESCRIPTION
ATF pressure switch No. 3 is installed in the lock-up solenoid ATF output passage and is used to detect a malfunction in the lock-up solenoid.





MONITOR DESCRIPTION
The TCM illuminates the MIL and stores the DTC when the TCM detects that the ATF pressure switch is OFF with the lock-up solenoid ON or when the TCM detects that the ATF pressure switch is ON with the lock-up solenoid OFF.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

Part 1:

Part 2:

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM:

INSPECTION PROCEDURE

Step 1 (Part 1):

Step 1 (Part 2), Step 2-3:

Step 4: