A/T Road Test

  1. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
  1. Apply the parking brake, and block both rear wheels. Start the engine, then shift to D while pressing the brake pedal. Press the accelerator pedal, and release it suddenly. The engine should not stall.
  1. Repeat step 2 in all shift lever positions.
  1. Connect the HDS to the DLC (A) located under the driver's side of the dashboard, and go to the A/T Data list.
  1. Make sure the HDS communicates with the PCM. If it does not, go to the DLC circuit troubleshooting; R20A3 engine model, K24Z3 engine model.
  1. Prepare the HDS to take a HIGH SPEED SNAPSHOT (refer to the HDS user's guide for more details if needed):
    • Select the High Speed icon.
    • Select these parameters:
    • -
      Vehicle Speed
      -
      Output Shaft (Countershaft) Speed (rpm)
      -
      Input Shaft (Mainshaft) Speed (rpm)
      -
      Engine Speed
      -
      Relative TP Sensor
      -
      APP Sensor A (V)
      -
      ATF Temp Sensor (V)
      -
      Battery Voltage
      -
      Shift Control
      -
      Brake Switch
    • Set the Trigger Type to Parameter.
    • Adjust the Parameter setting to APP Sensor A above 1.2 V.
    • Set the recording time to 60 seconds.
    • Set the trigger point to −30 seconds.
  1. Find a suitable level road. When you are ready to begin the test, press OK on the HDS.
  1. Monitor the HDS and accelerate quickly until the APP Sensor A reads 1.3 V. Maintain a steady throttle until the transmission shifts to 5th gear, then slow the vehicle and come to a stop.
  1. Save the snapshot if the entire event was recorded or increase the recording time setting as necessary and repeat Step 8 .
  1. Adjust the parameter setting to 2.4 V. Test-drive the vehicle again. While monitoring the HDS, accelerate quickly until the APP Sensor A reads 2.5 V. Maintain a steady throttle until the transmission shifts to 5th gear (or reasonable speed), then slow the vehicle and come to a stop.
  1. Save the snapshot if the entire event was recorded or increase the recording time setting as necessary and repeat Step 10 .
  1. Accelerate quickly until the accelerator pedal is to the floor. Maintain a steady pedal until the transmission shifts to 3rd gear, then slow to a stop, and save the snapshot.
  1. Review each snapshot individually, and compare the Shift Command, the APP Sensor A voltage, and the Vehicle Speed to following the table.

    R20A3 Engine Model: Upshift: D Position

    APP Sensor A voltage: 1.3 V
    1st → 2nd
    16−20 km/h (10−12 mph)
    2nd → 3rd
    27−33 km/h (17−21 mph)
    3rd → 4th
    39−47 km/h (24−29 mph)
    4th → 5th
    55−65 km/h (34−40 mph)
    Lock-up ON
    76−84 km/h (47−52 mph)
    APP Sensor A voltage: 2.5 V
    1st → 2nd
    19−25 km/h (12−16 mph)
    2nd → 3rd
    38−48 km/h (24−30 mph)
    3rd → 4th
    65−75 km/h (40−47 mph)
    4th → 5th
    118−132 km/h (73−82 mph)
    Lock-up ON
    94−106 km/h (58−66 mph)
    Fully-opened throttle
    APP Sensor A voltage: 4.5 V
    1st → 2nd
    57−67 km/h (35−42 mph)
    2nd → 3rd
    101−113 km/h (63−70 mph)
    3rd → 4th
    151−165 km/h (94−103 mph)


    Downshift: D Position

    APP Sensor A voltage: 1.3 V
    Lock-up OFF
    47−55 km/h (29−34 mph)
    5th → 4th
    47−57 km/h (29−35 mph)
    4th → 3rd
    29−35 km/h (18−22 mph)
    3rd → 1st
    7−13 km/h (4−8 mph)
    APP Sensor A voltage: 2.5 V
    Lock-up OFF
    69−79 km/h (43−49 mph)
    Fully-opened throttle
    APP Sensor A voltage: 4.5 V
    Lock-up OFF
    182−198 km/h (113−123 mph)
    5th → 4th
    182−198 km/h (113−123 mph)
    4th → 3rd
    128−142 km/h (80−88 mph)
    3rd → 2nd
    82−94 km/h (51−58 mph)
    2nd → 1st
    40−50 km/h (25−31 mph)


    K24Z3 Engine Model: Upshift: D Position

    APP Sensor A voltage: 1.3 V
    1st → 2nd
    16−20 km/h (10−12 mph)
    2nd → 3rd
    25−31 km/h (16−19 mph)
    3rd → 4th
    41−49 km/h (25−30 mph)
    4th → 5th
    62−72 km/h (39−45 mph)
    Lock-up ON
    48−56 km/h (30−35 mph)
    APP Sensor A voltage: 2.5 V
    1st → 2nd
    22−28 km/h (14−17 mph)
    2nd → 3rd
    43−53 km/h (27−33 mph)
    3rd → 4th
    71−81 km/h (44−50 mph)
    4th → 5th
    121−135 km/h (75−84 mph)
    Lock-up ON
    166−182 km/h (103−113 mph)
    Fully-opened throttle
    APP Sensor A voltage: 4.5 V
    1st → 2nd
    62−72 km/h (39−45 mph)
    2nd → 3rd
    105−117 km/h (65−73 mph)
    3rd → 4th
    164−180 km/h (102−112 mph)


    Downshift: D position

    APP Sensor A voltage: 1.3 V
    Lock-up OFF
    47−55 km/h (29−34 mph)
    5th → 4th
    47−57 km/h (29−35 mph)
    4th → 3rd
    29−35 km/h (18−22 mph)
    3rd → 1st
    7−13 km/h (4−8 mph)
    APP Sensor A voltage: 2.5 V
    Lock-up OFF
    76−88 km/h (47−55 mph)
    Fully-opened throttle
    APP Sensor A voltage: 4.5 V
    Lock-up OFF
    182−198 km/h (113−123 mph)
    5th → 4th
    182−198 km/h (113−123 mph)
    4th → 3rd
    133−147 km/h (83−91 mph)
    3rd → 2nd
    82−94 km/h (51−58 mph)
    2nd → 1st
    40−50 km/h (25−31 mph)

  1. Drive the vehicle in 4th or 5th gear in the sequential shift mode in S, then downshift to 2nd gear. The vehicle should immediately begin to slow down from the engine braking, then slow to a stop.
  1. Shift to R, accelerate from a stop at full throttle momentarily, and check for abnormal noise and clutch slippage.
  1. Park the vehicle on an upward slope (about 16-degrees), apply the parking brake, and shift into P. Release the brake; the vehicle should not move.
    NOTE: Always use the parking brake to hold the vehicle when stopped on an incline in gear. Depending on the grade of the incline, the vehicle could roll backwards if the brake is released.