Dtc P0746 Pressure Control Solenoid A Performance (Shift Solenoid Valve Ds1)

Transmission. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
K111F Cvt. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

MONITOR DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC OUTPUT (IN ADDITION TO DTC P0746 AND P0776)

REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

PERFORM INITIALIZATION

DTC P0746 Pressure Control Solenoid "A" Performance (Shift Solenoid Valve DS1)

DTC P0776 Pressure Control Solenoid "B" Performance (Shift Solenoid Valve DS2)


DESCRIPTION

The ECM uses shift solenoid valves DS1 and DS2 to control the in/out CVT fluid flow volumes at the primary pulley to perform gear ratio control.

DTC Code
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P0746
  1. The engine is warmed up, and with the shift lever in D, the vehicle is accelerating.
  2. The actual gear ratio is higher than the target.
  3. 2 seconds
  4. 2 trip detection logic
Continuously variable transaxle assembly
  1. The engine is warmed up, and with the shift lever in D, the vehicle is decelerating or stopped.
  2. The actual gear ratio is lower than the target.
  3. 1 second
  4. 2 trip detection logic
P0776
  1. The engine is warmed up, and with the shift lever in D, the vehicle is decelerating or stopped.
  2. The actual gear ratio is lower than the target.
  3. 1 second
  4. 2 trip detection logic
  1. The engine is warmed up, and with the shift lever in D, the vehicle is accelerating.
  2. The actual gear ratio is higher than the target.
  3. 2 seconds
  4. 2 trip detection logic

MONITOR DESCRIPTION

The ECM compares the actual gear ratio with the target gear ratio. When the actual gear ratio and target gear ratio are different, the ECM detects the problem, illuminates the MIL and stores the DTC.

INSPECTION PROCEDURE

1.CHECK DTC OUTPUT (IN ADDITION TO DTC P0746 AND P0776)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the intelligent tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs using the tester.

    Result
    Result
    		Proceed to
    Only P0746 and P0776 are output
    		A
    P0746, P0776 and other DTCs are output
    		B

    HINT:
    If any other DTCs besides P0746 and P0776 are output, perform troubleshooting for those DTCs first.


B
GO TO DTC CHART (RAV4_ACA30 RM0000030G903HX.html)
A


2.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

  1. Replace the continuously variable transaxle assembly (RAV4_ACA30 RM00000192D01ZX.html).


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3.PERFORM INITIALIZATION
NOTICE:
  1. Performing reset memory will clear the learned values of both the yaw rate sensor assembly*1 or deceleration sensor*2 (deceleration sensor 0 point calibration) and CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate sensor assembly*1 or deceleration sensor*2 0 point calibration and CVT oil pressure calibration when replacing any of the parts shown in the following table:
    Replaced Part
    1. Continuously variable transaxle assembly
    2. ECM
    3. Oil pressure sensor
    4. Yaw rate sensor assembly (w/ VSC)
    5. Deceleration sensor (w/o VSC)
    6. Brake actuator assembly (skid control ECU)
  2. After performing reset memory, always perform yaw rate sensor assembly*1 or deceleration sensor*2 (deceleration sensor 0 point) calibration first, and then CVT oil pressure calibration.
  3. Always perform 0 point calibration with the vehicle on level ground.
  4. Do not shake or vibrate the vehicle during 0 point calibration.

  1. Using the intelligent tester, perform reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration (RAV4_ACA30 RM000003UQR002X.html).

  1. Check that no DTC is stored.


NEXT

END