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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> Transmission >> Automatic Trans >> On-Board Diagnostic - Automatic Transaxle (Mm8AX-EC) >> DTC P0798-00: Shift Solenoid No. 2: Circuit Malfunction

DTC P0798-00: Shift Solenoid No. 2: Circuit Malfunction

SYSTEM MALFUNCTION LOCATION SHIFT SOLENOID NO. 2: CIRCUIT MALFUNCTION
DETECTION CONDITION
  • THE TCM DETECTS A SHIFT SOLENOID NO. 2 CIRCUIT MALFUNCTION.

    PRECONDITION 

  • BATTERY VOLTAGE IS THE STANDARD OR MORE.
FAIL-SAFE
  • LIMITS ENGINE TORQUE.
  • INHIBITS LEARNING CONTROL.
  • INHIBITS MANUAL MODE.
  • INHIBITS SWITCHING FROM ENGINE-ONLY DRIVING TO EV DRIVING. (WITH MAZDA M HYBRID BOOST)
  • INHIBITS I-STOP CONTROL. (WITHOUT MAZDA M HYBRID BOOST)
  • IF THERE IS A SHORT TO POWER SUPPLY, INHIBITS DRIVING (NEUTRAL).
  • INHIBITS AAS.
  • INHIBITS DRIVING IN THE FOLLOWING GEARS.
    • 1ST GEAR
    • 2ND GEAR
    • 3RD GEAR
    • 4TH GEAR
    • 5TH GEAR
    • REVERSE
POSSIBLE CAUSE
  1. MALFUNCTION IN THE FOLLOWING CONTROL VALVE BODY COMPONENT PARTS (REFER TO [CONTROL VALVE BODY REMOVAL/INSTALLATION ] IN service information).
    • SHIFT SOLENOID NO. 2 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (OPEN OR SHORT CIRCUIT)
    • SHIFT SOLENOID NO. 2
    • ON/OFF SOLENOID VALVE NO. 1 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (SHORT TO POWER SUPPLY)
    • ON/OFF SOLENOID VALVE NO. 3 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (SHORT TO POWER SUPPLY)
    • SHIFT SOLENOID NO. 1 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (SHORT TO POWER SUPPLY)
    • SHIFT SOLENOID NO. 3 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (SHORT TO POWER SUPPLY)
    • SHIFT SOLENOID NO. 4 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (SHORT TO POWER SUPPLY)
    • SHIFT SOLENOID NO. 5 CIRCUIT (INCLUDING CONNECTOR/TERMINAL) (SHORT TO POWER SUPPLY)
    • TCM
REPEATABILITY VERIFICATION PROCEDURE
  1. CLEAR THE DTC RECORDED IN THE MEMORY. (SEE CLEARING DTC .)
  2. PERFORM THE FOLLOWING PROCEDURE TO ENSURE THAT THE DTC HAS BEEN RESOLVED:
    • DRIVE THE VEHICLE. (USE ALL GEARS FROM 1ST TO 8TH GEAR AND R POSITION)
SYSTEM WIRING DIAGRAM
  • NOT APPLICABLE