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Pressure Test

Special Tools Required 

NOTE:
  • Disable the VSA by pressing the VSA OFF button.
  • VSA DTC(s) may be set during the test-drive. If VSA DTC(s) come on, clear the DTC(s) with the HDS.
  1. Make sure the transmission fluid is filled to the proper level (see ATF LEVEL CHECK ).
  2. Raise the vehicle on a lift, and make sure it is securely supported.
  3. Allow the all four wheels to rotate freely.
  4. Remove the splash shield).
  5. Connect the HDS to the DLC (A).
    Fig 1: Identifying Data Link Connector (DLC)
    G06628718Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Turn the ignition switch to ON (II). Make sure the HDS communicates with the PCM, and go to the A/T Data List. If it does not, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
  7. Connect the A/T oil pressure gauge to the line pressure inspection port (A). Do not allow dust or other foreign particles to enter the hole while connecting the gauge.
    Fig 2: Identifying A/T Oil Pressure Gauges And Line Pressure Inspection Port
    G06628719Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
  9. Measure the line pressure at the line pressure inspection hole (A) in the P or N while holding the engine speed at 2, 000 rpm.
    NOTE: Higher pressure may be indicated if measurements are made in shift lever positions other than P or N.
    CLUTCH FLUID PRESSURE SPECIFICATIONS

    Pressure Fluid Pressure
    Standard Service Limit
    Line (A) 950-1, 010 kPa (9.7-10.3 kgf/cm2 , 138-147 psi) 910 kPa (9.2 kgf/cm2 , 132 psi)
  10. Turn the engine off, then disconnect the oil pressure gauge from the line pressure inspection port.
  11. Install the sealing bolt to the line pressure inspection port with a new sealing washer, and tighten the bolts to 18 N.m (1.8 kgf.m, 13 lbf.ft). Do not reuse the old sealing washer.
  12. Connect the A/T oil pressure gauge to the 1st clutch pressure inspection hole (8) and the 1st-hold clutch pressure inspection hole (C).
    Fig 3: Identifying 1st Clutch Pressure Inspection Hole And 1st-Hold Clutch Pressure Inspection Hole
    G06628720Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Remove the engine cover and air intake duct, and connect the A/T oil pressure gauge to the 2nd clutch pressure inspection port (D). Then temporarily install the air intake duct.
    Fig 4: Identifying 2nd Clutch Pressure Inspection Port
    G06628721Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Start the engine in P.
  15. Shift into 1, and measure the 1st clutch pressure at the 1st clutch pressure inspection port (B) and the 1st-hold clutch pressure at the 1st-hold clutch pressure inspection port (C) while holding the engine speed at 2, 000 rpm.
  16. Shift to 2, and measure the 2nd clutch pressure at the 2nd clutch pressure inspection hole (D) while holding the engine speed at 2, 000 rpm.
    CLUTCH FLUID PRESSURE SPECIFICATIONS

    Pressure Fluid Pressure
    Standard Service Limit
    1st clutch (B) 2nd clutch (D) 940-1, 020 kPa (9.6-10.4 kgf/cm2 , 137-148 psi) 890 kPa (9.1 kgf/cm2 , 129 psi)
    1st-hold clutch (C) 680-760 kPa (6.9-7.7 kgf/cm2 , 98-110 psi) 630 kPa (6.4 kgf/cm2 , 91 psi)
  17. Turn the engine off, then disconnect the A/T oil pressure gauges from the 1st clutch pressure, 1st-hold clutch pressure, and 2nd clutch pressure inspection ports.
  18. Install the sealing bolts in the 1st clutch pressure, 1st clutch hold clutch pressure, and 2nd clutch pressure inspection ports with new sealing washers, and tighten the bolts to 18 N.m (1.8 kgf.m, 13 lbf.ft). Do not reuse the old sealing washers.
  19. Connect the A/T oil pressure gauge to the 3rd clutch pressure inspection port (E) and the 5th clutch pressure inspection port (G).
    Fig 5: Identifying 3rd Clutch Pressure Inspection Port And 5th Clutch Pressure Inspection Port
    G06628722Courtesy of AMERICAN HONDA MOTOR CO., INC.
  20. Remove the bolt and the clamp to move the harness aside to access to the 4th clutch pressure inspection port (F). Connect the A/T oil pressure gauge to the 4th clutch pressure inspection port.
    Fig 6: Identifying 4th Clutch Pressure Inspection Port
    G06628723Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Start the engine with the transmission in P while pressing the brake pedal.
  22. Shift to D, and select the D3 driving mode by pressing the D3 switch. Release the brake pedal; the transmission is in 1st gear.
  23. Press the accelerator pedal to increase the engine speed to 2, 500 rpm; the transmission shifts into 2nd gear.
  24. Release the accelerator pedal; the engine speed decreases to 1, 000 rpm with the transmission in 2nd gear.
  25. Press the accelerator pedal very slowly so that the engine speed increases to 2, 000 rpm on 5 seconds, then hold the accelerator; the transmission shifts into 3rd gear. Measure the 3rd clutch pressure at the 3rd clutch pressure inspection port (E) while holding the engine speed at 2, 000 rpm.
  26. Release the D3 driving mode by pressing the D3 switch; the transmission shifts into 4th gear, then 5th gear. Measure the 4th clutch pressure at the 4th clutch pressure inspection port (F) and the 5th clutch pressure at the 5th clutch pressure inspection hole (G) while holding the engine speed at 2, 000 rpm.
    CLUTCH FLUID PRESSURE SPECIFICATIONS

    Pressure Fluid Pressure
    Standard Service Limit
    3rd clutch (E) 4th clutch (F) 940-1, 020 kPa (9.6-10.4 kgf/cm2 , 137-148 psi) 890 kPa (9.1 kgf/cm2 , 129 psi)
    5th clutch (G) 940-1, 020 kPa (9.6-10.4 kgf/cm2 , 137-148 psi) 890 kPa (9.1 kgf/cm2 , 129 psi)
  27. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
  28. Shift to R, then release the brake pedal. Raise the engine speed to 2, 000 rpm, and measure the 5th clutch pressure at the 5th clutch pressure inspection port (G).
    CLUTCH FLUID PRESSURE SPECIFICATIONS

    Pressure Fluid Pressure
    Standard Service Limit
    5th clutch (G) in R 940-1, 020 kPa (9.6-10.4 kgf/cm2 , 137-148 psi) 890 kPa (9.1 kgf/cm2 , 129 psi)
  29. Turn the engine off, then disconnect the A/T oil pressure gauges from the 3rd, 4th, and 5th clutch pressure inspection ports.
  30. Install the sealing bolts in the 3rd, 4th, and 5th clutch pressure inspection ports with new sealing washers, and tighten the bolts to 18 N.m (1.8 kgf.m, 13 lbf.ft). Do not reuse the old sealing washers.
  31. If any of the pressures are out of the service limit, problems and probable causes listed in the table.
    CLUTCH FLUID PRESSURE PROBLEMS AND PROBABLE CAUSES LIST

    Problem Probable causes
    No or low line pressure
    • Torque converter
    • ATF pump
    • Regulator valve
    • Torque converter check valve
    • Low fluid level
    • Clogged ATF strainer
    No or low 1st clutch pressure
    • 1st clutch
    • O-rings
    No or low 2nd clutch pressure
    • 2nd clutch
    • O-rings
    No or low 3rd clutch pressure
    • 3rd clutch
    • O-rings
    No or low 4th clutch pressure
    • 4th clutch
    • O-rings
    No or low 5th clutch pressure
    • 5th clutch
    • O-rings
    No or low 5th clutch pressure in the R position
    • Servo valve
    • 5th clutch
    • O-rings
    No or low 1st-hold clutch pressure
    • 1st-hold clutch
    • O-rings
  32. Install the clamp, and secure it with the bolt.
  33. Install the air intake duct and the engine cover.
  34. Install the splash shield).
  35. Check the transmission fluid level, and refill if necessary (see ATF LEVEL CHECK ).
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