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Home >> Kia >> 2009 >> Sedona Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System >> Diagnosis Trouble Codes Testing >> DTC P0731 Gear 1 Incorrect Ratio >> Monitor Scan Tool Data

Monitor Scan Tool Data

  1. Connect scan tool to data link connector (DLC).
  2. Engine "ON".
  3. Monitor the "ENGINE SPEED, INPUT SPEED SENSOR, OUTPUT SPEED SENSOR, GEAR POSITION" parameter on the scan tool.
  4. Perform the "STALL TEST" with gear position "1"

    Specification: 2200-2900 engine RPM

    Fig 1: Scan Tool Display - Engine RPM
    G04882232Courtesy of KIA MOTORS AMERICA, INC.
    OPERATING ELEMENT OF EACH SHIFTING RANGE

    GEAR POSITION ELEMENT
    L/R BRAKE 2ND BRAKE U/D CLUTCH O/D CLUTCH RED BRAKE DIR CLUTCH REV CLUTCH 0WC1 0WC2
    1st ◦   ◦   ◦     • •
    2nd   ◦ ◦   ◦       •
    3rd     ◦ ◦ ◦       •
    4th   ◦   ◦ ◦       •
    5th   ◦   ◦   ◦      
    REV ◦       ◦   ◦    
    N, P ◦       ◦        

    Low & Reverse Brake is released When the vehicle speed over the 5 MPH (7 km/h).

    Stall test procedure in D1 and reason 

    Procedure

    1. Warm up the engine.
    2. After positioning the select lever in "D", depress the foot brake pedal fully after that, depress the accelerator pedal to the maximum.

      * The slippage of 1st gear operating parts can be detected by stall test in D

    Reason for stall test

    1. If there is no mechanical defaults in A/T, all slippages occur in torque converter.
    2. Therefore, engine revolution is output, but input and output speed revolution must be "zero" due to wheel's lock.
    3. If 1st gear operating part has faults, input speed revolution will be out of specification.
    4. If output speed revolution is output. It means that the foot brake force is not applied fully. Remeasuring is required.
  5. Is "STALL TEST" within specification?

    YES 

    NO 

    CAUTION:
    1. Do not let anybody stand in front of or behind the vehicle while this test is being carried out.
    2. Check the A/T fluid level and temperature and the engine coolant temperature.
      • Fluid level: At the hot mark on the oil level gauge.
      • Fluid temperature: 176-212°F (80-100°C).
      • Engine coolant temperature: 176-212°F (80-100°C).
    3. Chock both rear wheel (left and right).
    4. Pull the parking brake lever on with the brake pedal fully depressed.
    5. The throttle should not be left fully open for more than eight second.
    6. If stall test is being performed more than once, move the selector lever to `V' and run the engine at 1000 RPM to allow the transaxle fluid to cool prior to subsequent tests.
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