AUTOMATIC TRANSMISSION SYSTEM(for 8GR-FKS), Diagnostic DTC:P271312

DTC Code DTC Name
P271312 Pressure Control Solenoid "D" Circuit Short to Battery

DESCRIPTION

Refer to DTC P27137F.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P271312 Pressure Control Solenoid "D" Circuit Short to Battery

Either condition is met (1-trip detection logic):


  • Solenoid (SLT) valve circuit current is higher than specified value for the target current continuously for 1 second or more while the engine is running.

  • SLT negative (-) terminal monitor malfunction occurs continuously for 1.3 seconds or more while the engine is running.

  • Harness and connector

  • Transmission wire

  • Solenoid (SLT) valve

  • ECM

 Comes on DTC stored SAE: P2721
DTC Detection Condition Patterns
Vehicle Condition
Pattern 1 Pattern 2
Diagnostic Condition Engine is running. ○ ○
Malfunction Condition Solenoid (SLT) valve circuit current is higher than specified value for the target current. ○ -
SLT negative (-) terminal monitor is abnormal. - ○
Duration 1 second or more 1.3 seconds or more
Detection Logic 1-trip detection logic 1-trip detection logic

Tech Tips

This DTC is stored when either of the above detection patterns is met.

MONITOR DESCRIPTION

When a short in the solenoid (SLT) valve circuit is detected, the ECM will determine that there is a malfunction, illuminate the MIL and store this DTC.

CONFIRMATION DRIVING PATTERN

Tech Tips

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


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

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

  4. Turn the engine switch off and wait for at least 30 seconds.

  5. Turn the engine switch on (IG) and turn the GTS on.

  6. Start the engine.

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

  8. Input the DTC: P271312.

  9. 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

    Tech Tips


    • 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 Confirmation Driving Pattern and check the DTC judgment result again.

WIRING DIAGRAM

B006EFEE13
*a Solenoid (SLT) Valve
*b Transmission Wire

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced.

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PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE (SOLENOID (SLT) VALVE) - ECM)


    1. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D65-67 (SLT+) - D65-37 (SLT-) 20°C (68°F) 5.0 to 5.6 Ω
      D65-67 (SLT+) or D65-37 (SLT-) - Other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) Click here

    OK

  2. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM A/T CODE REGISTRATION Click here

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


    1. Disconnect the transmission wire connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D3-27 (SLT+) or D65-67 (SLT+) - Other terminals Always 10 kΩ or higher
      D3-28 (SLT-) or D65-37 (SLT-) - Other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT SOLENOID (SLT) VALVE


    1. B006BJFC19
      *1 Solenoid (SLT) Valve

      Remove the solenoid (SLT) valve.

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 5.0 to 5.6 Ω

    3. Connect a positive (+) lead from the battery with a 21 W bulb to terminal 1 and a negative (-) lead to terminal 2 of the solenoid valve connector. Check that the valve moves and makes an operating sound.

      OK
      Valve moves and makes an operating sound.
      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE TRANSMISSION WIRE Click here

    NG

    REPLACE SOLENOID (SLT) VALVE Click here