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

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

for Preparation Click here


DESCRIPTION

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

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P0841
  1. Oil pressure requested value is 0.5 MPa or less
  2. Oil pressure sensor output value is 3.0 MPa or more
  3. 3 seconds
  4. 2-trip detection logic
  1. Continuously variable transaxle assembly
  2. Oil pressure sensor
  3. ECM
P2829
  1. Oil pressure requested value is 0.5 MPa or less
  2. Oil pressure sensor output value is 3.0 MPa or more
  3. 3 seconds
  4. 2-trip detection logic
  1. Shift lever in D, and driving at speed of 8 km/h (5 mph) or more
  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 the belt clamping pressure liner solenoid SLS and at the oil pressure sensor, the ECM detects the problem, illuminates the MIL and stores the DTC.

INSPECTION PROCEDURE

1.CHECK OTHER 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 tester on.

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

  1. Read the DTCs using the tester.
    Result 
    Result
    		Proceed to
    Only P0841 and P2829 are output
    		A
    P0841 and P2829 other DTCs are output
    		B



B
GO TO DTC CHART (Click here)
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 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.

    Tester Display
    		Measurement Item/
    Range (display)
    		Normal Condition
    		Diagnostic Note
    A/T Oil Pressure
    		Secondary oil pressure value/
    min.: -0.625 MPa
    max.: 9.575 MPa
    		Secondary oil pressure inspection (D position stall test)
    3.78 to 5.89 MPa
    		-
    Result 
    Result
    		Proceed to
    Data display is not within Normal Condition range
    		A
    Data display is within Normal Condition range
    		B



B
CHECK INTERMITTENT PROBLEMS (Click here)
A


3.REPLACE OIL PRESSURE SENSOR

  1. Replace the oil pressure sensor (Click here).


NEXT


4.CLEAR DTC

  1. Clear the DTC (Click here).


NEXT


5.PERFORM INITIALIZATION

  1. Perform the initialization (Click here).


NEXT


6.CHECK DTC OUTPUT

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

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

  1. Read the DTCs using the tester.
    Result 
    Result
    		Proceed to
    P0841 and P2829 are output
    		A
    DTC is not output
    		B



B
END
A


7.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


8.PERFORM INITIALIZATION

  1. Perform the initialization (Click here).


NEXT


9.CHECK DTC OUTPUT

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

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

  1. Read the DTCs using the tester.
    Result 
    Result
    		Proceed to
    P0841 and P2829 are output
    		A
    DTC is not output
    		B



B
END
A


10.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

  1. Replace the continuously variable transaxle assembly (Click here).


NEXT


11.CLEAR DTC

  1. Clear the DTC (Click here).


NEXT


12.PERFORM INITIALIZATION

  1. Perform the initialization (Click here).

  1. Check for DTCs again (Click here).


NEXT

END