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A/T Pressure Test

Special Tools Required

A/T oil pressure gauge set
 07406-0020005
  1. Raise the vehicle on a lift, or apply the parking brake, block both rear wheels, and raise the front of the vehicle. Make sure it is securely supported.
  1. Allow the front wheels to rotate freely.
  1. Remove the splash shield.
  1. Connect the HDS to the DLC (A), and go to the A/T data list. If the HDS does not communicate with the PCM, troubleshoot the DLC circuit.

  1. Connect the 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.
  1. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
  1. Measure the line pressure at the line pressure inspection port in P or N while holding the engine speed at 2,000 rpm (min −1 ).
    NOTE: Higher pressure may be indicated if measurements are made in the shift lever position other than P or N.
    Pressure
    Fluid Pressure
    Standard
    Service Limit
    Line (A)
    900−960 kPa (9.2−9.8 kgf/cm 2 , 130−140 psi)
    850 kPa (8.7 kgf/cm 2 , 120 psi)

  1. Turn the engine off, then disconnect the oil pressure gauge from the line pressure inspection port.
  1. 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.

  1. Connect the oil pressure gauge to the 1st clutch pressure inspection port (B), then temporarily install the air cleaner assembly.

  1. Connect the oil pressure gauge to the 2nd clutch pressure inspection port (C).
  1. For seven-position transmission: Measure the 1st and 2nd clutch pressure.
    -1.
    Start the engine, and shift to 1.
    -2.
    Measure the 1st clutch pressure at the 1st clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    -3.
    Shift to 2, and measure the 2nd clutch pressure at the 2nd clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
  1. For five-position transmission: Measure the 1st and 2nd clutch pressure.
    -1.
    Start the engine, and shift to S.
    -2.
    Pull the paddle shifter + (upshift switch), make sure the transmission is in 1st gear, and measure the 1st clutch pressure at the 1st clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    -3.
    Upshift to 2nd gear by pulling the paddle shifter +, and measure the 2nd clutch pressure at the 2nd clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    Pressure
    Fluid Pressure
    Standard
    Service Limit
    1st clutch (B)
    2nd clutch (C)
    890−970 kPa (9.1−9.9 kgf/cm 2 , 130−140 psi)
    840 kPa (8.6 kgf/cm 2 , 120 psi)

  1. Turn the engine off, remove the air cleaner assembly, then disconnect the oil pressure gauges from the 1st clutch pressure and 2nd clutch pressure inspection ports.
  1. Install the sealing bolts to the 1st clutch pressure and 2nd clutch pressure inspection ports with the new sealing washers, and tighten the bolts to 18 N·m (1.8 kgf·m, 13 lbf·ft). Do not reuse old sealing washer.

  1. Connect the oil pressure gauge to the 3rd clutch pressure inspection port (D) and the 4th clutch pressure inspection port (E).

  1. Connect the oil pressure gauge to the 5th clutch pressure inspection port (F).
  1. For seven-position transmission: Measure the 3rd, 4th, and 5th clutch pressures.
    -1.
    Start the engine, and shift to D3, then press the accelerator pedal slowly until reaching 3rd gear.
    -2.
    Measure the 3rd clutch pressure at the 3rd clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    -3.
    Shift to D, and measure the 4th clutch pressure at the 4th clutch pressure inspection port.
    -4.
    Measure the 5th clutch pressure at the 5th clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
  1. For five-position transmission: Measure the 3rd, 4th, and 5th clutch pressures.
    -1.
    Start the engine, and shift to S.
    -2.
    Upshift to 3rd gear by pulling the paddle shifter +, and measure the 3rd clutch pressure at the 3rd clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    -3.
    Upshift to 4th gear by pulling the paddle shifter +, and measure the 4th clutch pressure at the 4th clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    -4.
    Upshift to 5th gear by pulling the paddle shifter +, and measure the 5th clutch pressure at the 5th clutch pressure inspection port while holding the engine speed at 2,000 rpm (min −1 ).
    Pressure
    Fluid Pressure
    Standard
    Service Limit
    3rd clutch (D)
    4th clutch (E)
    5th clutch (F)
    890−970 kPa (9.1−9.9 kgf/cm 2 , 130−140 psi)
    840 kPa (8.6 kgf/cm 2 , 120 psi)

  1. Bring the engine back to an idle, then press the brake pedal to stop the wheels from rotating.
  1. Shift to R, then release the brake pedal. Raise the engine speed to 2,000 rpm (min −1 ), and measure the 5th clutch pressure at the 5th clutch pressure inspection port.
    Pressure
    Fluid Pressure
    Standard
    Service Limit
    5th clutch (F) in R
    890−970 kPa (9.1−9.9 kgf/cm 2 , 130−140 psi)
    840 kPa (8.6 kgf/cm 2 , 120 psi)

  1. Turn the engine off, then disconnect the oil pressure gauges from the 3rd, 4th, and 5th clutch pressure inspection ports.
  1. Install the sealing bolts in the 3rd, 4th, and 5th clutch pressure inspection ports with the new sealing washers, and tighten the bolts to 18 N·m (1.8 kgf·m, 13 lbf·ft). Do not reuse the old sealing washer.
  1. If any of the pressures are out of the service limit, refer to the problems and probable causes listed in the table.
    Problem
    Probable causes
    No or low line pressure
    • Torque converter
    • ATF pump
    • Regulator valve
    • Torque converter check valve
    • 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 R
    • Servo valve
    • 5th clutch
    • O-rings

  1. Install the splash shield.
  1. Retrieve an ABS DTC with the HDS. If there is an ABS DTC, clear the DTC with the HDS.
    NOTE: When rotating the front wheels off the ground by the engine, it may cause an ABS system problem.