AUTOMATIC TRANSAXLE SYSTEM, Diagnostic DTC:P2810

DTC Code DTC Name
P2810 Pressure Control Solenoid "G" Electrical

DESCRIPTION

Changing from 1st to 6th gear is performed by the ECM turning solenoid (SL1, SL2, SL3, SL4 and SL) valves on and off. If an open or short occurs in any of the solenoid valve circuits, the ECM controls the remaining normal solenoid valves to allow the vehicle to be driven.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2810 Pressure Control Solenoid "G" Electrical While driving so that gear changes occur, an open or short is detected in the solenoid (SL4) valve circuit for 1 second (1-trip detection logic).

  • Wiring harness connector

  • Open or short in solenoid (SL4) valve circuit

  • Solenoid (SL4) valve

  • Transmission wire

  • ECM

 Comes on DTC stored

MONITOR DESCRIPTION

This DTC indicates an open or short in the solenoid (SL4) valve circuit. The ECM commands gear shifts by turning the solenoid valves on or off. When there is an open or short in any of the solenoid valve circuits, the ECM detects the problem, illuminates the MIL and stores a DTC. The ECM also performs the fail-safe function and turns the other normal solenoid valves on or off. (In the case of an open or short, the ECM stops sending current to the circuit.)

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CONFIRMATION DRIVING PATTERN

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

Tech Tips

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.


  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON and turn the GTS on.

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

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

  5. Turn the ignition switch to ON and turn the GTS on.

  6. Start the engine.

  7. Perform the D Position Shift Test inspection in Road Test.

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  8. Stop the vehicle.

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

  10. Input the DTC: P2810.

  11. 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

B006Y1AE60

CAUTION / NOTICE / HINT

Note

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

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Tech Tips

The following table shows normal operation of the solenoid (SL4) valve when the shift lever is in D:

ECM commanded gear 1st 2nd 3rd 4th 5th 6th
Solenoid (SL4) valve OFF OFF ON OFF ON OFF

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (SOLENOID (SL4) VALVE CIRCUIT)


    1. Disconnect the C58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C58-5 (SL4+) - C58-4 (SL4-) 20°C (68°F) 5.0 to 5.6 Ω
      C58-5 (SL4+) - Body ground and other terminals Always 10 kΩ or higher
      C58-4 (SL4-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (ECM - WIRING HARNESS CONNECTOR)


    1. Disconnect the C54 wiring harness connector connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C58-5 (SL4+) - C54-21 (SL4+) Always Below 1 Ω
      C58-4 (SL4-) - C54-20 (SL4-) Always Below 1 Ω
      C58-5 (SL4+) or C54-21 (SL4+) - Body ground and other terminals Always 10 kΩ or higher
      C58-4 (SL4-) or C54-20 (SL4-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT TRANSMISSION WIRE (SOLENOID (SL4) VALVE)


    1. B006XMZC07
      *a

      Component without harness connected

      (Transmission Wire)

      Remove the wiring harness connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-22 (SL4+) - A-21 (SL4-) 20°C (68°F) 5.0 to 5.6 Ω
      A-22 (SL4+) - Body ground and other terminals Always 10 kΩ or higher
      A-21 (SL4-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE WIRING HARNESS CONNECTOR Click here

    NG

  4. INSPECT SOLENOID (SL4) VALVE


    1. B00713YC02
      *1 Solenoid (SL4) Valve

      Remove the solenoid (SL4) 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
      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 2 and a negative (-) lead to terminal 1 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

    REPLACE TRANSMISSION WIRE Click here

    NG

    REPLACE SOLENOID (SL4) VALVE Click here