K121 CVT CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM P276112 Torque Converter Clutch Pressure Control Solenoid Control Circuit High Circuit Short to Battery
DESCRIPTION
Using the current from the ECM, the shift solenoid valve SLU controls the B1 brake when the shift lever is in R, and controls the lock-up clutch pressure and performs lock-up and flex lock-up control when the shift lever is in D or M.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| P276112 | Torque Converter Clutch Pressure Control Solenoid Control Circuit High Circuit Short to Battery | A short to +B is detected in the shift solenoid valve SLU circuit for 1 second or more (1-trip detection logic). | ·
Transmission valve body assembly (Shift solenoid valve SLU) ·
Transmission wire ·
Harness and connector ·
ECM |
Comes on | Engine | A | SAE Code:
P2763 |
MONITOR DESCRIPTION
This DTC indicates a short to +B in the shift solenoid valve SLU circuit. If there is a short to +B in the shift solenoid valve SLU 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.
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.
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 / Engine / Utility / All Readiness.
Input the DTC: P276112.
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
CAUTION / NOTICE / HINT
- NOTICE:
- ·
Perform the universal trip to clear permanent DTCs.
·Perform registration and/or initialization when parts related to the continuously variable transaxle system are replaced.
·Check that no DTCs are stored after performing initialization.
PROCEDURE
Pre-procedure1
Disconnect the C34 transmission wire connector.
Procedure1
| *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 4 (SLU+) - Other terminals Always 10 kΩ or higher 9 (SLU-) - Other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
Post-procedure1
Connect the C34 transmission wire connector.
OK
NG
Pre-procedure1
Disconnect the C71 ECM connector.
Procedure1
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition C71-30 (SLU+) - Other terminals Always 10 kΩ or higher C71-31 (SLU-) - Other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
Post-procedure1
Connect the C71 ECM connector.
OK
NG
- HINT:
-
for M20C-FKS:
-
for M20D-FKS:
- Result:
Proceed to NEXT
NEXT
for Registration: Click hereDrivetrain>K121 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>REGISTRATION202304,999999,_52,_138176,_0584691,RM1000000029HF6,
for Initialization: Click hereDrivetrain>K121 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION202304,202405,_52,_138176,_0584691,RM1000000029HF7,202405,202409,_52,_138176,_0584691,RM100000002JGMX,202409,999999,_52,_138176,_0584691,RM100000002NRHB,
Pre-procedure1
Disconnect the C34 transmission wire connector.
Disconnect the transmission wire connector from the shift solenoid valve SLU.
Procedure1
Measure the resistance according to the value(s) in the table below.
| *1 | Transmission Valve Body Assembly | *2 | Shift Solenoid Valve SLU |
| *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 4 (SLU+) (wire harness connector side) - All other terminals Always 10 kΩ or higher 2 (shift solenoid valve side) or 9 (SLU-) (wire harness connector side) - All other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
Post-procedure1
None
OK
NG
- Result:
Proceed to NEXT
NEXT
for Registration: Click hereDrivetrain>K121 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>REGISTRATION202304,999999,_52,_138176,_0584691,RM1000000029HF6,
for Initialization: Click hereDrivetrain>K121 (CVT)>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION202304,202405,_52,_138176,_0584691,RM1000000029HF7,202405,202409,_52,_138176,_0584691,RM100000002JGMX,202409,999999,_52,_138176,_0584691,RM100000002NRHB,