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Home >> Honda >> 2007 >> Odyssey EX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Pressure Test

Pressure Test

Special Tools Required 

NOTE:
  • Disable the VSA by pressing the VSA OFF button.
  • VSA DTC(s) may come on during the test-drive. If the 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, or apply the parking brake, block the rear wheels, and raise the front of the vehicle. Make sure it is securely supported, and allow the front wheels to rotate freely.
  3. Remove the front inner fender and the splash shield.
  4. Connect the HDS to the DLC (A) located under the driver's side of the dashboard.
    Fig 1: Identifying Data Link Connector
    G06680803Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Turn the ignition switch to ON (II).
  6. Make sure the HDS communicates with the PCM. 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 port while connecting the A/T oil pressure gauge.
    Fig 2: Identifying A/T Pressure Hose And A/T Pressure Adapter
    G06680804Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 3: Identifying Line Pressure Inspection Port
    G06680805Courtesy 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 port while holding the engine speed at 2,000 rpm with the shift lever in P or N.
    NOTE: Higher pressures may be noticed if measurements are taken with the shift lever in any position other than P or N.
    FLUID PRESSURE REFERENCE

    Pressure Fluid Pressure
    Standard Service Limit
    Line 950 - 1,010 kPa (9.7 - 10.3 kgf/cm2 , 140 - 146 psi) 900 kPa (9.2 kgf/cm2 , 130 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 bolt to 18 N.m (1.8 kgf.m, 13 lbf.ft). Do not reuse the old sealing washer.
  12. Remove the engine cover and the intake air duct.
  13. Connect the A/T oil pressure gauge to the 1st clutch pressure inspection port (B) and the 1st-hold clutch pressure inspection port (C).
    Fig 4: Identifying 1st Clutch Pressure Inspection Port And 1st-hold Clutch Pressure Inspection Port
    G06680806Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Connect the A/T oil pressure gauge to the 2nd clutch pressure inspection port (D). Then temporarily install the intake air duct.
    Fig 5: Identifying 2nd Clutch Pressure Inspection Port
    G06680807Courtesy of AMERICAN HONDA MOTOR CO., INC.
  15. Start the engine with the shift lever in P, then shift the shift lever to 1.
  16. Measure the 1st clutch pressure at the 1st clutch pressure inspection port and the 1st-hold clutch pressure at the 1st-hold clutch pressure inspection port while holding the engine speed at 2,000 rpm.
  17. Shift the shift lever to 2, and measure the 2nd clutch pressure at the 2nd clutch pressure inspection port while holding the engine speed at 2,000 rpm.
    FLUID PRESSURE REFERENCE

    Pressure Fluid Pressure
    Standard Service Limit
    1st clutch (B) 2nd clutch (D) 940 - 1,020 kPa (9.6 - 10.4 kgf/cm2 , 140 - 148 psi) 890 kPa (9.1 kgf/cm2 , 130 psi)
    1st-hold clutch (C) 677 - 755 kPa (6.9 - 7.7 kgf/cm2 , 98 - 110 psi) 628 kPa (6.4 kgf/cm2 , 91 psi)
  18. Turn the engine off, then disconnect the A/Toil pressure gauges from the 1st, 1st-hold, and 2nd clutch pressure inspection ports.
  19. Install the sealing bolts in the 1st, 1st-hold, 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.
  20. Connect the A/T oil pressure gauge to the 3rd clutch pressure inspection port (E) and the 5th clutch pressure inspection port (G).
    Fig 6: Identifying 3rd Clutch Pressure Inspection Port And 5th Clutch Pressure Inspection Port
    G06680808Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Connect the A/T oil pressure gauge to the 4th clutch pressure inspection port (F).
    Fig 7: Identifying 4th Clutch Pressure Inspection Port
    G06680809Courtesy of AMERICAN HONDA MOTOR CO., INC.
  22. Start the engine with the shift lever in P. Press the brake pedal, shift the shift lever to D and select the D3 driving mode by pressing the D3 button.
  23. Measure the 3rd clutch pressure at the 3rd clutch pressure inspection port while holding the engine speed at 2,000 rpm.
  24. Release the D3 driving mode by pressing the D3 button, and measure the 4th clutch pressure at the 4th clutch pressure inspection port while holding the. engine speed at 2,000 rpm.
  25. Measure the 5th clutch pressure at the 5th clutch pressure inspection port while holding the engine speed at 2,000 rpm.
    FLUID PRESSURE REFERENCE

    Pressure Fluid Pressure
    Standard Service Limit
    3rd clutch (E)
    4th clutch (F)
    5th clutch (G)    		 940 - 1,020 kPa (9.6 - 10.4 kgf/cm2 , 140 - 148 psi) 890 kPa (9.1 kgf/cm2 , 130 psi)
  26. Bring the engine back to an idle, then apply the brake pedal to stop the wheels from rotating.
  27. Shift the shift lever to R, then release the brake pedal. Measure the 5th clutch pressure at the 5th clutch pressure inspection port while holding the engine speed at 2,000 rpm.
    FLUID PRESSURE REFERENCE

    Pressure Fluid Pressure
    Standard Service Limit
    5th clutch (G) in R 940 - 1,020 kPa (9.6 - 10.4 kgf/cm2 , 140 - 148 psi) 890 kPa (9.1 kgf/cm2 , 130 psi)
  28. Turn the engine off, then disconnect the A/T oil pressure gauge from the 3rd, 4th, and 5th clutch pressure inspection ports.
  29. 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.
  30. If the pressures are out of the service limit, refer to the problems and the probable causes listed in the table.
    PROBABLE CAUSES CHART

    Problem Probable causes
    No or low line pressure
    • Torque converter
    • ATF pump
    • Regulator valve
    • Low fluid level
    • Clogged ATF strainer
    No or low 1st clutch pressure
    • 1st clutch
    • O-rings
    • Shift cable broken or out of adjustment
    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 R
    • Servo valve
    • 5th clutch
    • O-rings
    No or low 1st-hold clutch pressure
    • 1st-hold clutch
    • O-rings
  31. Install the intake air duct and the engine cover.
  32. Install the front inner fender and the splash shield.
  33. Check the ATF level (see ATF LEVEL CHECK  ).
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