K313 CVT CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM P074015 Torque Converter Clutch Circuit Short to Battery or Open
DESCRIPTION
Refer to DTC P074011.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P074015 | Torque Converter Clutch Circuit Short to Battery or Open | When the shift solenoid valve SL is not operated, an open or short to +B is detected in the shift solenoid valve SL circuit (1-trip detection logic). | ·
Wire harness or connector ·
Transmission valve body assembly (Shift solenoid valve SL) ·
Transmission wire ·
ECM |
Comes on | DTC stored | SAE Code:
P2770 |
MONITOR DESCRIPTION
This DTC indicates an open or short to +B in the shift solenoid valve SL circuit. If there is an open or short to +B in the shift solenoid valve SL circuit, the ECM detects the malfunction, 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.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for 2 minutes or more.
Turn the ignition switch to ON and turn the GTS on.
Start the engine.
Drive the vehicle and confirm the lock-up on and off conditions according to Road Test. [*1]
- HINT:
-
[*1]: Normal judgment procedure.
-
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Stop the vehicle.
Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
Input the DTC: P074015.
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
Refer to DTC P074011.
CAUTION / NOTICE / HINT
- NOTICE:
- ·
Perform the universal trip to clear permanent DTCs.
·Perform initialization when parts related to the continuously variable transaxle system are replaced.
·Check that no DTCs are stored after performing initialization.
PROCEDURE
| *a | Component without harness connected
(Transmission Wire) |
Disconnect the C60 transmission wire connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 3 (SL) - Body ground 20°C (68°F) 11 to 15 Ω 3 (SL) - Other terminals Always 10 kΩ or higher
Connect the C60 transmission wire connector.
- Result:
Proceed to OK NG
OK
NG
Disconnect the C78 ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C78-75 (SL) - Body ground 20°C (68°F) 11 to 15 Ω C78-75 (SL) - Other terminals Always 10 kΩ or higher
Connect the C78 ECM connector.
- Result:
Proceed to OK NG
OK
NG
- Result:
Proceed to NEXT
NEXT
Remove the transmission wire.
Click hereDrivetrain>K313 (CVT)>TRANSMISSION WIRE>REMOVAL201906,999999,_52,_080728,_0392278,RM100000001HPBX,
| *1 | Transmission Valve Body Assembly | *2 | Shift Solenoid Valve SL |
| *3 | Transmission Wire | - | - |
| *a | Shift Solenoid Valve Side | *b | Wire Harness Connector Side |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 1 (shift solenoid valve side) - 3 (SL) (wire harness connector side) Always Below 1 Ω 1 (shift solenoid valve side) or 3 (SL) (wire harness connector side) - All other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Replace the transmission valve body assembly.
- Result:
Proceed to NEXT
NEXT