RM36D0EC _52 Drivetrain _138176 K121 CVT _0584691 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM C

K121 CVT  CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM  P08DD11  Shift Solenoid "K" Control Circuit Short to Ground  


DESCRIPTION

By controlling the current, the ECM controls the shift solenoid valve SC3 and switches the shift solenoid valve SLU between the role of controlling the lock-up clutch pressure and controlling the B1 brake pressure.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from Priority Note
P08DD11 Shift Solenoid "K" Control Circuit Short to Ground A short to ground is detected in the shift solenoid valve SC3 circuit (1-trip detection logic).
·

Transmission valve body assembly (Shift solenoid valve SC3)

·

Transmission wire

·

Harness and connector

·

ECM


Comes on Engine A SAE Code:
P08DB

MONITOR DESCRIPTION

This DTC indicates a short to ground in the shift solenoid valve SC3 circuit. If there is a short to ground in the shift solenoid valve SC3 circuit, the ECM detects the malfunction, illuminates the MIL and stores this 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>K121 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>DTC CHECK / CLEAR



1.

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

2.

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

3.

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

Click hereDrivetrain>K121 (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.


4.

Stop the vehicle.

5.

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

6.

Input the DTC: P08DD11.

7.

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.




WIRING DIAGRAM

C502575E08
5.552,2.938 6.167,3.135 0.615,0.198 10 false C71 5.563,3.115 6.177,3.313 0.615,0.198 10 false ECM 5.156,1.115 5.771,1.313 0.615,0.198 10 false SC3 5.792,0.854 6.406,1.052 0.615,0.198 10 false 12 V 4.958,1.115 5.573,1.313 0.615,0.198 10 false 1 4.479,1.115 5.094,1.313 0.615,0.198 10 false 18 4.073,1.125 4.688,1.323 0.615,0.198 10 false SC3 2.771,1.125 3.385,1.323 0.615,0.198 10 false 1 1.198,3.146 4.323,3.542 3.125,0.396 10 false Continuously Variable Transaxle Assembly 0.906,2.5 2.146,2.917 1.24,0.417 10 false Transmission Valve Body Assembly 2.844,2.458 4.344,2.688 1.5,0.229 10 false C34 2.844,2.635 4.344,2.865 1.5,0.229 10 false Transmission Wire 1.479,1.646 2.375,2.063 0.896,0.417 10 false Shift Solenoid Valve SC3

PROCEDURE

1.INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SC3)

Pre-procedure1

a.

Disconnect the C34 transmission wire connector.


Procedure1

b.
C502583C03
1.875,1.688 0.938,1.083 true 0.083,0.083 0.396,0.24 0.313,0.156 10 false *a 0.625,1 1.24,1.198 0.615,0.198 10 false SC3
*a Component without harness connected
(Transmission Wire)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
18 (SC3) - Body ground 20°C (68°F) 11 to 15 Ω


Result:
Proceed to
OK
NG



Post-procedure1

c.

Connect the C34 transmission wire connector.



OK

2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

NG

4.INSPECT TRANSMISSION WIRE
2.CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

Pre-procedure1

a.

Disconnect the C71 ECM connector.


Procedure1

b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
C71-1 (SC3) - Body ground 20°C (68°F) 11 to 15 Ω


Result:
Proceed to
OK
NG



Post-procedure1

c.

Connect the C71 ECM connector.



OK

3.REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM)

4.INSPECT TRANSMISSION WIRE

Pre-procedure1

a.

Disconnect the C34 transmission wire connector.


b.

Disconnect the transmission wire connector from the shift solenoid valve SC3.

HINT:

Click hereDrivetrain>K121 (CVT)>VALVE BODY ASSEMBLY>REMOVAL



Procedure1

c.

Measure the resistance according to the value(s) in the table below.

C499429C01
3.042,0.938 3.448,0.938 true 5.354,0.906 5.771,0.906 true 5.823,3.198 4.927,2.729 true 1.156,0.177 1.469,0.333 0.313,0.156 10 false *1 3.542,0.854 3.854,1.01 0.313,0.156 10 false *2 4.698,0.198 5.01,0.354 0.313,0.156 10 false *3 5.771,0.219 6.083,0.375 0.313,0.156 10 false *a 5.771,1.865 6.083,2.021 0.313,0.156 10 false *b 4.625,2.635 5.24,2.833 0.615,0.198 10 false SC3 5.229,0.833 5.542,0.99 0.313,0.156 10 false 1
*1 Transmission Valve Body Assembly *2 Shift Solenoid Valve SC3
*3 Transmission Wire - -
*a Shift Solenoid Valve Side *b Wire Harness Connector Side


Standard Resistance:
Tester Connection Condition Specified Condition
1 (shift solenoid valve side) or 18 (SC3) (wire harness connector side) - All other terminals Always 10 kΩ or higher


Result:
Proceed to
OK
NG



Post-procedure1

d.

None



OK

5.REPLACE TRANSMISSION VALVE BODY ASSEMBLY

NG

REPLACE TRANSMISSION WIRE

Click hereDrivetrain>K121 (CVT)>TRANSMISSION WIRE>REMOVAL