RM3660EC _52 Drivetrain _080728 K313 CVT _0392261 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM C

K313 CVT  CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM  P084000  Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance  P28287F  Pressure Control Solenoid "K" Actuator Stuck Off  


DESCRIPTION

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

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P084000 Transmission Fluid Pressure Sensor/Switch "A" Circuit Range/Performance Either of the following conditions is met (1-trip detection logic):
·

When the requested oil pressure is less than 1.0 MPa (10.2 kgf/cm2, 145 psi), the oil pressure sensor output is 2.5 MPa (25.5 kgf/cm2, 363 psi) or more and the difference between the calculated primary pulley pressure and target primary pulley pressure is 2.0 MPa (20.4 kgf/cm2, 290 psi) or more for 3 seconds or more.

·

When the requested oil pressure is 1.4 MPa (14.3 kgf/cm2, 203 psi) or more, the oil pressure sensor output is less than 0.5 MPa (5.1 kgf/cm2, 73 psi) for 2 seconds or more.


·

Oil pressure sensor

·

ECM

·

Transmission valve body assembly (Shift solenoid valve SLS)

·

Continuously variable transaxle assembly


Comes on DTC stored SAE Code:
P0841
P28287F Pressure Control Solenoid "K" Actuator Stuck Off Any of the following conditions are met (1-trip detection logic):
·

When the requested oil pressure is 1.4 MPa (14.3 kgf/cm2, 203 psi) or more, the oil pressure sensor output is less than 0.5 MPa (5.1 kgf/cm2, 73 psi) for 2 seconds or more.

·

When the vehicle speed is less than 8 km/h (5 mph), the actual gear ratio exceeds 4 or more for 0.2 seconds or more.

·

When the oil pressure sensor output is less than 0.35 MPa (3.6 kgf/cm2, 51 psi) and the target gear ratio is 2.0 or more, the actual gear ratio is less than 1.0 for 1.5 seconds or more.

·

When the requested oil pressure is 1.0 MPa (10.2 kgf/cm2, 145 psi) or less, the oil pressure sensor output is 2.5 MPa (25.5 kgf/cm2, 363 psi) or more and the difference between the calculated primary pulley pressure and target primary pulley pressure is 0.5 MPa (5.1 kgf/cm2, 73 psi) or more for 3 seconds or more.


Continuously variable transaxle assembly Comes on DTC stored SAE Code:
P2829

DTC Detection Condition Patterns (P084000):
Vehicle Condition
Pattern 1 Pattern 2
Diagnostic Condition The requested oil pressure is less than 1.0 MPa (10.2 kgf/cm2, 145 psi). ○ -
The requested oil pressure value is 1.4 MPa (14.3 kgf/cm2, 203 psi) or more. - ○
Malfunction Condition The oil pressure sensor output is 2.5 MPa (25.5 kgf/cm2, 363 psi) or more. ○ -
The difference between the calculated primary pulley pressure and target primary pulley pressure is 2.0 MPa (20.4 kgf/cm2, 290 psi). ○ -
The oil pressure sensor output value is 0.5 MPa (5.1 kgf/cm2, 73 psi) or less. - ○
Duration 3 seconds or more 2 seconds or more
Detection Logic 1-trip detection logic 1-trip detection logic

DTC Detection Condition Patterns (P28287F):
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4
Diagnostic Condition The requested oil pressure is 1.4 MPa (14.3 kgf/cm2, 203 psi) or more. ○ - - -
The vehicle speed is less than 8 km/h (5 mph). - ○ - -
The oil pressure sensor output is less than 0.35 MPa (3.6 kgf/cm2, 51 psi). - - ○ -
The target gear ratio is 2.0 or more. - - ○ -
The requested oil pressure is 1.0 MPa (10.2 kgf/cm2, 145 psi) or less. - - - ○
Malfunction Condition The oil pressure sensor output is less than 0.5 MPa (5.1 kgf/cm2, 73 psi). ○ - - -
The actual gear ratio is 4 or more. - ○ - -
The actual gear ratio is less than 1.0. - - ○ -
The oil pressure sensor output is 2.5 MPa (25.5 kgf/cm2, 363 psi) or more. - - - ○
The difference between the calculated primary pulley pressure and target primary pulley pressure is 0.5 MPa (5.1 kgf/cm2, 73 psi) or more. - - - ○
Duration 2 seconds or more 0.2 seconds or more 1.5 seconds or more 3 seconds or more
Detection Logic 1-trip detection logic 1-trip detection logic 1-trip detection logic 1-trip detection logic

HINT:

These DTCs are output when either of the above detection patterns is met.


MONITOR DESCRIPTION

The ECM checks for belt clamping high-pressure or low-pressure malfunctions. If a mechanical malfunction of the shift solenoid valve SLS or the oil pressure sensor is detected by the ECM, it illuminates the MIL and stores a DTC.

CONFIRMATION DRIVING PATTERN

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.


HINT:
·

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

·

When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>DTC CHECK / CLEAR



1.

Connect the GTS to the DLC3.

2.

Turn the ignition switch to ON and turn the GTS on.

3.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4.

Turn the ignition switch off and wait for 2 minutes or more.

5.

Turn the ignition switch to ON and turn the GTS on.

6.

Start the engine.

7.

Perform the D Position Shift Test inspection in Road Test. [*1]

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>ROAD TEST

HINT:

[*1]: Normal judgment procedure.

The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.


8.

Stop the vehicle.

9.

Enter the following menus: Powertrain / Transmission / Utility / All Readiness.

10.

Input the DTC: P084000 or P28287F.

11.

Check the DTC judgment result.

GTS Display Description
NORMAL
·

DTC judgment completed

·

System normal


ABNORMAL
·

DTC judgment completed

·

System abnormal


INCOMPLETE
·

DTC judgment not completed

·

Perform driving pattern after confirming DTC enabling conditions


N/A
·

Unable to perform DTC judgment

·

Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit



HINT:
·

If the judgment result shows NORMAL, the system is normal.

·

If the judgment result shows ABNORMAL, the system has a malfunction.

·

If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.




CAUTION / NOTICE / HINT

CAUTION:
·
C328184

Do not perform a stall test if there are any people or objects near the vehicle.

·

The vehicle could begin moving suddenly, resulting in a serious accident.


·
C328186

Do not perform a stall test if any wheel chocks are out of position.

·

The vehicle could begin moving suddenly, resulting in a serious accident.


·
C328185

Do not perform the stall test on a slippery or low-friction surface that could allow the tires to spin.

·

The vehicle could begin moving suddenly, resulting in a serious accident.



NOTICE:
·

Perform the universal trip to clear permanent DTCs.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>DTC CHECK / CLEAR

·

Perform initialization when parts related to the continuously variable transaxle system are replaced.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION

·

Check that no DTCs are stored after performing initialization.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>DTC CHECK / CLEAR



PROCEDURE

1.CHECK DTC OUTPUT (IN ADDITION TO DTC P084000 AND P28287F)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Transmission / Trouble Codes.

Powertrain > Transmission > Trouble Codes
50001 373

e.

Read the DTCs using the GTS.

HINT:

If any DTCs other than P084000 or P28287F are output, perform troubleshooting for those DTCs first.



Result:
Result Proceed to
Both DTC P084000 and P28287F are output A
Only DTC P084000 is output B
Only DTC P28287F is output C
DTC P084000 and/or P28287F and other DTCs are output D



A

2.READ VALUE USING GTS (BELT CLAMPING FORCE SENSOR)

B

14.READ VALUE USING GTS (BELT CLAMPING FORCE SENSOR)

C

26.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

D

GO TO DTC CHART

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>DIAGNOSTIC TROUBLE CODE CHART


2.READ VALUE USING GTS (BELT CLAMPING FORCE SENSOR)
CAUTION:

A stall speed test should always be performed with at least 2 people. One person should observe the condition of the wheels and wheel chocks while the other is performing the test.


NOTICE:
·

This test must be performed after checking and confirming that the engine is normal.

·

Perform this test with the CVT fluid temperature between 50 and 100°C (122 and 212°F).

·

Perform this test with the air conditioning off.

·

Do not perform the stall speed test for more than 5 seconds.

·

When performing the stall speed test repeatedly, wait for 15 seconds or more between tests.

·

Perform this test with the AUTO function (shift-linked function) of the electric parking brake system off.



a.

Warm up the engine.


b.

Fully apply the parking brake and chock all 4 wheels.

HINT:

When the parking brake indicator (red) is illuminated after the electric parking brake switch (electric parking brake switch assembly) has been pulled to the lock side, the maximum amount of braking force is applied if the electric parking brake switch (electric parking brake switch assembly) is pulled to the lock side one more time.



c.

Connect the GTS to the DLC3.


d.

Turn the ignition switch to ON.


e.

Turn the GTS on.


f.

Enter the following menus: Powertrain / Transmission / Active Test / Activate the TC Terminal.


g.

According to the display on the GTS, perform the Active Test.


h.

According to the display on the GTS, read the Data List.

Powertrain > Transmission > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Belt Clamping Force Sensor Secondary oil pressure value Min.: -64 MPa
Max.: 63.998 MPa 		Secondary oil pressure inspection:
·

3.5 to 5.5 MPa (35.7 to 56.1 kgf/cm2, 508 to 798 psi): D position stall test

·

3.6 to 5.5 MPa (36.7 to 56.1 kgf/cm2, 522 to 798 psi): R position stall test


-
Powertrain > Transmission > Active Test
Active Test Display
Activate the TC Terminal
Data List Display
Belt Clamping Force Sensor
50004 373 22 367

Result:
Result Proceed to
Data List value is normal A
Data List value is not normal B



A

3.REPLACE ECM

B

4.INSPECT TRANSMISSION VALVE BODY ASSEMBLY (SHIFT SOLENOID VALVE SLS)
4.INSPECT TRANSMISSION VALVE BODY ASSEMBLY (SHIFT SOLENOID VALVE SLS)
a.
C264597C39
1.323,1.219 1.104,1.771 1.104,1.771 0.948,1.771 true 1.333,0.854 1.104,0.365 1.104,0.365 0.958,0.365 true 0.052,0.052 0.365,0.25 0.313,0.198 10 false *a 0.583,1.698 1.188,1.896 0.604,0.198 10 false SLS- 0.563,0.292 1.167,0.49 0.604,0.198 10 false SLS+
*a Component without harness connected
(Transmission Wire)


Remove the oil strainer assembly.

Click hereDrivetrain>K313 (CVT)>VALVE BODY ASSEMBLY>REMOVAL


b.

Disconnect the C60 transmission wire connector.


c.

Apply battery voltage to the transmission wire and check that the valve moves and makes an operating noise.

OK:
Measurement Condition Specified Condition
·

Battery positive (+) → 5 (SLS+)

·

Battery negative (-) → 12 (SLS-)


Valve moves and makes an operating noise



d.

Check the transmission valve body assembly.

Click hereDrivetrain>K313 (CVT)>VALVE BODY ASSEMBLY>REMOVAL

OK:

There is no foreign matter on the valve and it operates smoothly.



Result:
Proceed to
OK
NG



OK

5.REPLACE OIL PRESSURE SENSOR

NG

13.REPLACE TRANSMISSION VALVE BODY ASSEMBLY
5.REPLACE OIL PRESSURE SENSOR
a.

Replace the oil pressure sensor.

Click hereDrivetrain>K313 (CVT)>OIL PRESSURE SENSOR>COMPONENTS


Result:
Proceed to
NEXT



NEXT

6.CLEAR DTC
6.CLEAR DTC
a.

Clear the DTCs.

Powertrain > Transmission > Clear DTCs
50002 373

Result:
Proceed to
NEXT



NEXT

7.PERFORM INITIALIZATION
7.PERFORM INITIALIZATION
a.

Using the GTS, perform Reset Memory, Deceleration Sensor Zero Point Calibration and CVT Oil Pressure Calibration.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION


Result:
Proceed to
NEXT



NEXT

8.CHECK DTC OUTPUT
8.CHECK DTC OUTPUT
a.

Perform a road test.


b.

Connect the GTS to the DLC3.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Transmission / Trouble Codes.

Powertrain > Transmission > Trouble Codes
50001 373

f.

Read the DTCs using the GTS.


Result:
Result Proceed to
DTC P084000 and/or P28287F is output A
DTCs are not output B



A

9.REPLACE ECM

B

END

10.PERFORM INITIALIZATION
a.

Using the GTS, perform Reset Memory, Deceleration Sensor Zero Point Calibration and CVT Oil Pressure Calibration.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION


Result:
Proceed to
NEXT



NEXT

11.CHECK DTC OUTPUT
11.CHECK DTC OUTPUT
a.

Perform a road test.


b.

Connect the GTS to the DLC3.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Transmission / Trouble Codes.

Powertrain > Transmission > Trouble Codes
50001 373

f.

Read the DTCs using the GTS.


Result:
Result Proceed to
DTC P28287F is output A
DTCs are not output B



A

12.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

B

END

13.REPLACE TRANSMISSION VALVE BODY ASSEMBLY
a.

Replace the transmission valve body assembly.

Click hereDrivetrain>K313 (CVT)>VALVE BODY ASSEMBLY>COMPONENTS


Result:
Proceed to
NEXT



NEXT

PERFORM INITIALIZATION

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION


14.READ VALUE USING GTS (BELT CLAMPING FORCE SENSOR)
CAUTION:

A stall speed test should always be performed with at least 2 people. One person should observe the condition of the wheels and wheel chocks while the other is performing the test.


NOTICE:
·

This test must be performed after checking and confirming that the engine is normal.

·

Perform this test with the CVT fluid temperature between 50 and 100°C (122 and 212°F).

·

Perform this test with the air conditioning off.

·

Do not perform the stall speed test for more than 5 seconds.

·

When performing the stall speed test repeatedly, wait for 15 seconds or more between tests.

·

Perform this test with the AUTO function (shift-linked function) of the electric parking brake system off.



a.

Warm up the engine.


b.

Fully apply the parking brake and chock all 4 wheels.

HINT:

When the parking brake indicator (red) is illuminated after the electric parking brake switch (electric parking brake switch assembly) has been pulled to the lock side, the maximum amount of braking force is applied if the electric parking brake switch (electric parking brake switch assembly) is pulled to the lock side one more time.



c.

Connect the GTS to the DLC3.


d.

Turn the ignition switch to ON.


e.

Turn the GTS on.


f.

Enter the following menus: Powertrain / Transmission / Active Test / Activate the TC Terminal.


g.

According to the display on the GTS, perform the Active Test.


h.

According to the display on the GTS, read the Data List.

Powertrain > Transmission > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Belt Clamping Force Sensor Secondary oil pressure value Min.: -64 MPa
Max.: 63.998 MPa 		Secondary oil pressure inspection:
·

3.5 to 5.5 MPa (35.7 to 56.1 kgf/cm2, 508 to 798 psi): D position stall test

·

3.6 to 5.5 MPa (36.7 to 56.1 kgf/cm2, 522 to 798 psi): R position stall test


-
Powertrain > Transmission > Active Test
Active Test Display
Activate the TC Terminal
Data List Display
Belt Clamping Force Sensor
50004 373 22 367

Result:
Result Proceed to
Data List value is normal A
Data List value is not normal B



A

15.REPLACE ECM

B

16.INSPECT TRANSMISSION VALVE BODY ASSEMBLY (SHIFT SOLENOID VALVE SLS)
16.INSPECT TRANSMISSION VALVE BODY ASSEMBLY (SHIFT SOLENOID VALVE SLS)
a.
C264597C39
1.323,1.219 1.104,1.771 1.104,1.771 0.948,1.771 true 1.333,0.854 1.104,0.365 1.104,0.365 0.958,0.365 true 0.052,0.052 0.365,0.25 0.313,0.198 10 false *a 0.583,1.698 1.188,1.896 0.604,0.198 10 false SLS- 0.563,0.292 1.167,0.49 0.604,0.198 10 false SLS+
*a Component without harness connected
(Transmission Wire)


Remove the oil strainer assembly.

Click hereDrivetrain>K313 (CVT)>VALVE BODY ASSEMBLY>REMOVAL


b.

Disconnect the C60 transmission wire connector.


c.

Apply battery voltage to the transmission wire and check that the valve moves and makes an operating noise.

OK:
Measurement Condition Specified Condition
·

Battery positive (+) → 5 (SLS+)

·

Battery negative (-) → 12 (SLS-)


Valve moves and makes an operating noise



d.

Check the transmission valve body assembly.

Click hereDrivetrain>K313 (CVT)>VALVE BODY ASSEMBLY>REMOVAL

OK:

There is no foreign matter on the valve and it operates smoothly.



Result:
Proceed to
OK
NG



OK

17.REPLACE OIL PRESSURE SENSOR

NG

25.REPLACE TRANSMISSION VALVE BODY ASSEMBLY
17.REPLACE OIL PRESSURE SENSOR
a.

Replace the oil pressure sensor.

Click hereDrivetrain>K313 (CVT)>OIL PRESSURE SENSOR>COMPONENTS


Result:
Proceed to
NEXT



NEXT

18.CLEAR DTC
18.CLEAR DTC
a.

Clear the DTCs.

Powertrain > Transmission > Clear DTCs
50002 373

Result:
Proceed to
NEXT



NEXT

19.PERFORM INITIALIZATION
19.PERFORM INITIALIZATION
a.

Using the GTS, perform Reset Memory, Deceleration Sensor Zero Point Calibration and CVT Oil Pressure Calibration.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION


Result:
Proceed to
NEXT



NEXT

20.CHECK DTC OUTPUT
20.CHECK DTC OUTPUT
a.

Perform a road test.


b.

Connect the GTS to the DLC3.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Transmission / Trouble Codes.

Powertrain > Transmission > Trouble Codes
50001 373

f.

Read the DTCs using the GTS.


Result:
Result Proceed to
DTC P084000 is output A
DTCs are not output B



A

21.REPLACE ECM

B

END

22.PERFORM INITIALIZATION
a.

Using the GTS, perform Reset Memory, Deceleration Sensor Zero Point Calibration and CVT Oil Pressure Calibration.

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION


Result:
Proceed to
NEXT



NEXT

23.CHECK DTC OUTPUT
23.CHECK DTC OUTPUT
a.

Perform a road test.


b.

Connect the GTS to the DLC3.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Powertrain / Transmission / Trouble Codes.

Powertrain > Transmission > Trouble Codes
50001 373

f.

Read the DTCs using the GTS.


Result:
Result Proceed to
DTC P084000 is output A
DTCs are not output B



A

24.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

B

END

25.REPLACE TRANSMISSION VALVE BODY ASSEMBLY
a.

Replace the transmission valve body assembly.

Click hereDrivetrain>K313 (CVT)>VALVE BODY ASSEMBLY>COMPONENTS


Result:
Proceed to
NEXT



NEXT

PERFORM INITIALIZATION

Click hereDrivetrain>K313 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION