AUTOMATIC TRANSAXLE SYSTEM, 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

1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other


  1. Engine is running

  2. Solenoid (SLT) valve circuit is short to +B

  3. 1 second

  4. 1-trip detection logic

  • Solenoid (SLT) valve

  • Transmission wire

  • Harness and connector

  • ECM

 Comes on DTC stored

SAE Code:

P2721

MONITOR DESCRIPTION

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

WIRING DIAGRAM

B003Z11E18
*a Solenoid (SLT) Valve
*b Transmission Wire

CAUTION / NOTICE / HINT

Note

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

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Tech Tips

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Start the engine.

  2. Check for DTCs again.

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PROCEDURE


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


    1. Disconnect the C1 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C1-67 (SLT+) or C1-37 (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 REGISTRATION Click here

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


    1. Disconnect the C85 transmission wire connector.

    2. Disconnect the C1 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C85-24 (SLT+) or C1-67 (SLT+) - Other terminals Always 10 kΩ or higher
      C85-23 (SLT-) or C1-37 (SLT-) - Other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

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

    OK

  4. INSPECT SOLENOID (SLT) VALVE


    1. B003Z4NC76
      *a

      Component without harness connected

      (Solenoid (SLT) Valve)

      Remove the solenoid (SLT) valve.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Solenoid (SLT) valve connector terminal 1 - terminal 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 When Not Using the Engine Support Bridge: Click here
    REPAIR OR REPLACE TRANSMISSION WIRE When Using the Engine Support Bridge: Click here

    NG

    REPLACE SOLENOID (SLT) VALVE Click here