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Home >> Acura >> 2000 >> 1.6EL XS, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Road Test

Road Test

NOTE: Warm up the engine to normal operating temperature (the radiator fan comes on).
  1. Apply the parking brake and block the wheels. Start the engine, then shift to [D4 ] position while depressing the brake pedal. Depress the accelerator pedal and release it suddenly. The engine should not stall.
  2. Repeat same test in [D3 ] position.
  3. Test-drive the vehicle on a flat road in the [D4 ] position. Check that the shift points occur at the approximate speeds (shown on the next page) on a flat road. Also check for abnormal noise and clutch slippage.
    NOTE: Throttle position sensor voltage represents the throttle opening.
    1. Unbolt the PCM for road testing; refer to TROUBLESHOOTING PROCEDURES  .
    2. Set the digital multimeter to check voltage between D1 (+) terminal and A9 (-) or A22 (-) terminal of the PCM for the throttle position sensor.
      Fig 1: Checking PCM Using Digital Multimeter
      G06288272Courtesy of AMERICAN HONDA MOTOR CO., INC.
      Fig 2: Checking Voltage Between D1 (+) Terminal And A9 (-) Or A22 (-) Terminal Of PCM For Throttle Position Sensor
      G06288273Courtesy of AMERICAN HONDA MOTOR CO., INC.
    • Upshift
      TERMINAL VOLTAGE REFERENCE

      Throttle Opening Unit of speed 1st → 2nd 2nd → 3rd 3rd → 4th Lock-up ON
      Throttle position sensor voltage: 0.75 V mph 9-12 20-23 28-33 22-25
      km/h 15-19 32-37 45-52 34-39
      Throttle position sensor voltage: 2.25 V mph 22-26 41-47 59-65 61-67
      km/h 34-40 65-73 95-104 99-108
      Fully-opened throttle
      Throttle position sensor voltage: 4.5 V      		 mph 32-38 62-71 97-108 96 - 107
      km/h 51-59 99-112 155-172 153-170
    • Downshift
      TERMINAL VOLTAGE REFERENCE

      Throttle Opening Unit of speed Lock-up OFF 4th → 3rd 3rd → 2nd 2nd → 1st
      Fully-closed throttle
      Throttle position sensor voltage: 0.5 V      		 mph 19-22 17-20 7-10 (3rd → 1st)
      km/h 30-35 27-32 10-15 (3rd → 1st)
      Fully-opened throttle
      Throttle position sensor voltage: 4.5 V      		 mph 92-103 86-97 54-61 25-31
      km/h 147 - 163 137 - 153 87 - 98 40 - 48
      NOTE:
      • Lock-up ON: The lock-up control solenoid valve A turns ON.
      • Lock-up OFF: The lock-up control solenoid valve A turns OFF.
  4. Accelerate to about 35 mph (57 km/h) so the transmission is in 4th, then shift from [D4 ] position to [2] position. The vehicle should immediately begin slowing down from engine braking.
    CAUTION: Do not shift from [D4 ] or [D3 ] position to [2] position at speeds over 63 mph (100 km/h); you may damage the transmission.
  5. Check for abnormal noise and clutch slippage in the following positions.

    [2] (2nd Gear) Position

    1. Accelerate from a stop at full throttle. Check that there is no abnormal noise or clutch slippage.
    2. Upshifts and downshifts should not occur with the selector in this position.

    [R] (Reverse) Position

    Accelerate from a stop at full throttle, and check for abnormal noise and clutch slippage.

  6. Test in [P] (Parking) Position

    Park the vehicle on slope (approx. 16°), apply the parking brake, and shift into position. Release the brake; the vehicle should not move.

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