P0746

DTC P0746 Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1)

DESCRIPTION
The TCM detects gear position based on signals from the speed sensor (SP2 and NT).

Based on the detected gear position and oil pressure switch output, the TCM detects related mechanical problems in the shift solenoid valve, valve body and automatic transmission.

HINT: Gear shift position when a problem occurs in shift solenoid valve SL1:





^ *1: When less than 6 speeds are output
^ *2: When 6 speeds or more are output
^ *3: Neutral

P0746:

MONITOR DESCRIPTION
The TCM commands gear shifts by turning the shift solenoid valves on or off. According to the input shaft revolution, intermediate (counter) shaft revolution and output shaft revolution, the TCM detects the actual gear position (1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear position). When the gear position commanded by the TCM and the actual gear position are not the same, the TCM illuminates the MIL.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

Part 1:

Part 2:

Part 3:

Part 4:

TYPICAL MALFUNCTION THRESHOLDS

Part 1:

Part 2:

INSPECTION PROCEDURE

Step 1:

Steps 2-3(Part 1):

Steps 3(Part 2)-6(Part 1):

Step 6(Part 2):