LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 143 (Automatic Transmission - A750F) >> Automatic Transmission System >> DTC P0894 Transmission Component Slipping; DTC P2714 Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTCS P0894 AND P2714) 
    1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    2. Turn the ignition switch ON and push the intelligent tester main switch ON.
    3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
    4. Read the DTCs using the intelligent tester.

    Result 

    RESULT REFERENCE

    Display (DTC output) Proceed to
    • Only P0894 is output
    • Only P0894 and P2714 are output
    		 A
    P0894, P2714 and other DTCs are output B

    HINT:

    If any other codes besides P0894 and P2714 are output, perform troubleshooting for those DTCs first.

    B: GO TO DTC CHART 

    A: GO TO Next Step 

  2. PERFORM  ACTIVE TEST   BY INTELLIGENT TESTER (SHIFT SOLENOID VALVE SLT) 
    NOTE:
    • Perform the test at the normal operating ATF temperature: 50 to 80°C (122 to 176°F).
    • Be careful to prevent SST's hose from interfering with the exhaust pipe.
    • Perform the test with the A/C OFF.

    HINT:

    Performing the intelligent tester's ACTIVE TEST allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the ACTIVE TEST  early in troubleshooting is one way to save time. The DATA LIST can be displayed during the ACTIVE TEST.

    1. Remove the test plug on the transmission case center right side and connect SST.

      SST 09992-00095 (09992-00231, 09992-00271) 

    2. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    3. Start the engine and warm it up.
    4. Measure the line pressure with SST.
    5. Turn the intelligent tester ON.
    6. Enter the following menus: DIAGNOSIS / OBD/MOBD / ECT/ACTIVE TEST.
    7. Follow the instructions on the tester and perform the ACTIVE TEST .
    8. Measure the line pressure with SST.
    Fig 1: Measuring Line Pressure
    G04963188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    ECM 

    ACTIVE TEST DETAIL

    Tester Display Test Part Control Range Diagnostic Note
    LINE PRESS UP* Operate the shift solenoid SLT and raise line pressure ON or OFF
    HINT:
    • OFF: Line pressure up (when Active Test "LINE PRESS UP" is performed, ECM commands SLT solenoid to turn OFF)
    • ON: No action (normal operation)
    		 [Vehicle Condition]
    • Vehicle stopped
    • Engine: idling

    HINT:

    *: LINE PRESS UP in the Active Test is performed to check the line pressure changes by connecting SST to the automatic transmission, which is used in the HYDRAULIC TEST  as well. Please note that the pressure values in the Active Test and Hydraulic Test are different.

    OK: The line pressure changes as specified when performing the  ACTIVE TEST  . 

    NG: GO TO step   9

    OK: GO TO Next Step 

  3. PERFORM  ACTIVE TEST   BY INTELLIGENT TESTER (RUNNING TEST) 
    NOTE: This test should always be performed with at least 2 people.
    1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
    2. Clear the DTC (see DTC CHECK / CLEAR ).
    3. Enter the following menus: DIAGNOSIS / OBD/MOBD / ECT/ACTIVE TEST.
    4. Perform the ACTIVE TEST  using the intelligent tester.

      HINT:

      While driving, the shift position can be forcibly changed with the intelligent tester.

      ECM 

      ACTIVE TEST DETAIL

      Tester Display Test Part Control Range Diagnostic Note
      SHIFT Operate shift solenoid valve and set each shift position by yourself
      • Press "→" button: Shift up
      • Press "←" button: Shift down
      		 Possible to check operation of shift solenoid valves
      [Vehicle Condition]
      50 km/h (30 mph) or less

      HINT:

      • This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
      • The 4th to 5th up-shift must be performed with the accelerator pedal released.
      • The 5th to 4th down-shift must be performed with the accelerator pedal released.
      • Do not operate the accelerator pedal for at least 2 seconds after shifting and do not shift successively.
      • The shift position commanded by the ECM is shown in the DATA LIST (SHIFT) display on the intelligent tester.
    5. Compare the ECM gear shift command and the actual gear position.

    Result 

    RESULT REFERENCE

    ECM gear shift command 1st 2nd 3rd 4th 5th Proceed to
    Actual gear position under malfunction Shift solenoid S1 Stuck ON 1st 2nd 2nd 1st N*1 A
    Stuck OFF 4th 3rd 3rd 4th 5th
    Shift solenoid S2 Stuck ON*2 2nd 2nd 3rd 3rd N*1 B
    Stuck OFF*3 1st 1st 4th 4th 5th
    Shift solenoid SL2 Stuck ON 1st 2nd 3rd 4th N*1 C
    Stuck OFF 1st 2nd 3rd 4th 5th
    Shift solenoid SR Stuck ON*4 1st 2nd 3rd 4th 5th D
    Stuck OFF*5 1st 2nd 3rd 4th 4th

    HINT:

    • *1: Neutral
    • *2: When shift solenoid S2 is stuck ON, the vehicle cannot drive in reverse.
    • *3: When shift solenoid S2 is stuck OFF, the 4th to 5th upshift will have a large shift shock. Also, the 5th to 4th down-shift will have time lag.
    • *4: Stuck ON condition can be determined by checking if shift shock has increased excessively.
    • *5: When shift solenoid SR is stuck OFF, moving the shift lever from N to D will cause a large shift shock.
    • Gear shift can be determined by paying attention to changes in rpm.

    OK: Gear position changes in accordance with the tester command. 

    OK: GO TO step   9

    B: GO TO step   5

    C: GO TO step   6

    D: GO TO step   7

    A: GO TO Next Step 

  4. INSPECT SHIFT SOLENOID VALVE S1 
    1. Remove the shift solenoid valve S1.
    2. Measure the resistance of the solenoid value.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      Shift solenoid S1 connector - Shift solenoid S1 body 20°C (68°F) 11 to 15 Ω
    3. Connect the battery's positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.
    4. Check the operating noise of the solenoid valve.

    OK: Solenoid makes operating noise. 

    OK: GO TO step   10

    Fig 2: Measuring Resistance Between Shift Solenoid Valve S1 Terminals And Valve Body
    G04963209Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SHIFT SOLENOID VALVE S1 

  5. INSPECT SHIFT SOLENOID VALVE S2 
    1. Remove the shift solenoid valve S2.
    2. Measure the resistance of the solenoid value.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      Shift solenoid S2 connector - Shift solenoid S2 body 20°C (68°F) 11 to 15 Ω
    3. Connect the battery's positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.
    4. Check the operating noise of the solenoid valve.

    OK: Solenoid makes operating noise. 

    OK: GO TO step   10

    Fig 3: Measuring Resistance Between Shift Solenoid Valve S2 Terminals And Valve Body
    G04963198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SHIFT SOLENOID VALVE S2 

  6. INSPECT SHIFT SOLENOID VALVE SL2 
    1. Remove the shift solenoid valve SL2.
    2. Measure the resistance of the solenoid value.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SL2 -terminal 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect the battery's positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating noise.
    4. Check the operating noise of the solenoid valve.

    OK: Solenoid makes operating noise. 

    OK: GO TO step   10

    Fig 4: Measuring Resistance Between Shift Solenoid Valve SL2 Terminals
    G04963211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SHIFT SOLENOID VALVE SL2 

  7. INSPECT SHIFT SOLENOID VALVE SR 
    1. Remove the shift solenoid valve SR.
    2. Measure the resistance of the solenoid value.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      Shift solenoid SR connector - Shift solenoid SR body 20°C (68°F) 11 to 15 Ω
    3. Connect the battery's positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.
    4. Check the operating noise of the solenoid valve.

    OK: Solenoid makes operating noise. 

    NG: REPLACE SHIFT SOLENOID VALVE SR 

    Fig 5: Measuring Resistance Between Shift Solenoid Valve SR Terminals And Valve Body
    G04963212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  8. INSPECT SHIFT SOLENOID VALVE SL1 
    1. Remove the shift solenoid valve SL1.
    2. Measure the resistance of the solenoid value.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SL1 -terminal 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect the battery's positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating noise.
    4. Check the operating noise of the solenoid valve.

    OK: Solenoid makes operating noise. 

    OK: GO TO step   10

    Fig 6: Measuring Resistance Between Shift Solenoid Valve SL1 Terminals
    G04963189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE SHIFT SOLENOID VALVE SL1 

  9. INSPECT SHIFT SOLENOID VALVE SLT 
    1. Remove the shift solenoid valve SLT.
    2. Measure the resistance of the solenoid value.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SLT -terminal 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect the battery's positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating noise.
    4. Check the operating noise of the solenoid valve.

    OK: Solenoid makes operating noise. 

    NG: REPLACE SHIFT SOLENOID VALVE SLT 

    Fig 7: Measuring Resistance Between Shift Solenoid Valve SLT Terminals
    G04963316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: GO TO Next Step 

  10. INSPECT TRANSMISSION VALVE BODY ASSEMBLY 
    1. Check the transmission valve body assembly.

    OK: There are no foreign objects on each valve. 

    NG: REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY 

    OK: GO TO Next Step 

  11. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY 
    1. Check the torque converter clutch assembly (see TORQUE CONVERTER CLUTCH AND DRIVE PLATE ).

    OK: The torque converter clutch operates normally. 

    NG: REPLACE TORQUE CONVERTER CLUTCH ASSEMBLY 

    OK: REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY 

scientia non olet · About LEMON Manuals