Dtc P0841 Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance

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 P0841 AND P2829)

READ VALUE USING INTELLIGENT TESTER (A/T OIL PRESSURE)

REPLACE OIL PRESSURE SENSOR

CLEAR DTC

PERFORM INITIALIZATION

CHECK DTC OUTPUT

REPLACE ECM

PERFORM INITIALIZATION

CHECK DTC OUTPUT

REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

CLEAR DTC

PERFORM INITIALIZATION

DTC P0841 Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance

DTC P2829 Pressure Control Solenoid "K" Performance (Shift Solenoid Valve SLS)


DESCRIPTION

The ECM controls the secondary oil pressure calibration based on the secondary oil pressure signal detected by the oil pressure sensor.

DTC Code
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P0841
  1. The requested oil pressure value is 0.5 MPa or less.
  2. The oil pressure sensor output value is 3.0 MPa or higher.
  3. 3 seconds
  4. 2 trip detection logic
  1. Oil pressure sensor
  2. Continuously variable transaxle assembly
  3. ECM
P2829
  1. The requested oil pressure value is 0.5 MPa or less.
  2. The oil pressure sensor output value is 3.0 MPa or higher.
  3. 3 seconds
  4. 2 trip detection logic
  1. The vehicle is driven at a speed of 8 km/h (5 mph) or less with the shift lever in D.
  2. The ratio of the rotation speeds of the primary pulley (NIN) and secondary pulley (NOUT) exceeds the threshold.
  3. 0.2 seconds
  4. 2 trip detection logic

MONITOR DESCRIPTION

The ECM checks for belt clamping high-pressure or low-pressure errors. When a mechanical malfunction is detected at shift solenoid valve SLS and at the oil pressure sensor, the ECM detects the problem, illuminates the MIL and stores the DTC.

INSPECTION PROCEDURE

  1. *1: w/ VSC
  2. *2: w/o VSC
1.CHECK DTC OUTPUT (IN ADDITION TO DTC P0841 AND P2829)

  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 P0841 and/or P2829 is output
    		A
    P0841 and/or P2829 and other DTCs are output
    		B

    HINT:
    If any other DTCs besides P0841 or P2829 are output, perform troubleshooting for those DTCs first.


B
GO TO DTC CHART (RAV4_ACA30 RM0000030G9017X.html)
A


2.READ VALUE USING INTELLIGENT TESTER (A/T OIL PRESSURE)

  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 / Data List.

  1. In accordance with the display on the tester, read the Data List.

    Engine and ECT
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    A/T Oil Pressure
    		Secondary oil pressure value/
    min.: -0.625 MPa
    max.: 9.575 MPa
    		Secondary oil pressure inspection
    1. D position stall speed test: 3.39 to 4.60 MPa
    2. R position stall speed test: 2.76 to 3.80 MPa
    		-
    Result
    Result
    		Proceed to
    Data displayed is not as specified under Normal Condition
    		A
    Data displayed is as specified under Normal Condition
    		B



B
CHECK FOR INTERMITTENT PROBLEMS (RAV4_ACA30 RM00000135201PX.html)
A


3.REPLACE OIL PRESSURE SENSOR

  1. Replace the oil pressure sensor (RAV4_ACA30 RM0000020TV00QX.html).


NEXT


4.CLEAR DTC

  1. Clear the DTCs (RAV4_ACA30 RM000000W770CCX.html).


NEXT


5.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).


NEXT


6.CHECK DTC OUTPUT

  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
    P0841 and/or P2829 is output
    		A
    DTC is not output
    		B



B
END
A


7.REPLACE ECM

  1. Replace the ECM (RAV4_ACA30 RM0000017UO01KX.html).


NEXT


8.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).


NEXT


9.CHECK DTC OUTPUT

  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
    P0841 and/or P2829 is output
    		A
    DTC is not output
    		B



B
END
A


10.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

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


NEXT


11.CLEAR DTC

  1. Clear the DTCs (RAV4_ACA30 RM000000W770CCX.html).


NEXT


12.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