FixVault

A/T Control Component Check

  1. THROTTLE POSITION SENSOR CHECK

    The TPS is a variable resistor type that rotates with the throttle body shaft to sense the throttle valve angle. As the throttle shaft rotates, the output voltage of the TPS changes. The ECM detects the throttle valve opening based on voltage change. (Refer to ENGINE CONTROL MODULE (ECM) ).

  2. OIL TEMPERATURE SENSOR CHECK
    1. Remove the oil temperature sensor.
    2. Measure the resistance between terminals 1 and 2 of the oil temperature sensor connector.
    OIL TEMPERATURE SENSOR STANDARD VALUE

    Oil temperature (°C) Resistance (KΩ)
    0 16.7 ~ 20.5
    100 0.57 ~ 0.69
    Fig 1: Measuring Resistance Between Terminals 1 & 2 Of Oil Temperature Sensor Connector
    G03849720Courtesy of HYUNDAI MOTOR CO.
  3. VEHICLE SPEED SENSOR CHECK
    1. Remove the vehicle speed sensor and connect a 3~10 KΩ resistance as shown in the illustration.
    2. Turn the shaft of the vehicle speed sensor and check that there is voltage between terminals 2-3 (1 turn = 4 pulses).
    Fig 2: Vehicle Speed Sensor Check
    G03849721Courtesy of HYUNDAI MOTOR CO.
  4. A/T CONTROL RELAY CHECK
    1. Remove the A/T control relay.
    2. Use jumper wires to connect A/T control relay terminal 2 to the battery (+) terminal and terminal 4 to the battery (-) terminal.
    3. Check the continuity between terminal 1 and terminal 3 of the A/T control relay when the jumper wires are connected and disconnected from the battery.
    4. If there is a problem, replace the A/T control relay.
    CHECKING A/T CONTROL RELAY CONTINUITY

    Jumper wire Continuity between terminals No. 1 & 3
    Connected Continuity
    Disconnected No continuity
    Fig 3: Using Jumper Wires To Connect A/T Control Relay Terminal 2 To Battery (+) Terminal & Terminal 4 To Battery (-) Terminal
    G03849722Courtesy of HYUNDAI MOTOR CO.
  5. SOLENOID VALVE CHECK
    1. Remove the valve body cover.
    2. Disconnect the connectors of each solenoid valve.
      Fig 4: Disconnecting Solenoid Valve Connectors
      G03849723Courtesy of HYUNDAI MOTOR CO.
    3. Measuring resistance between terminals 1 and 2 of each solenoid valve.

      STANDARD VALUE 

      SOLENOID VALVE STANDARD VALUE

      Name Resistance
      Damper clutch solenoid valve 2.7 ~ 3.4 Ω (at 20°C)
      Low and reverse solenoid valve
      Second solenoid valve
      Underdrive solenoid valve
      Overdrive solenoid valve
      Fig 5: Measuring Resistance Between Terminals 1 & 2 Of Each Solenoid Valve
      G03849724Courtesy of HYUNDAI MOTOR CO.
    4. If the resistance is outside the standard value, replace the solenoid valve.
    NOTE: Resistance of the solenoid valve connector. 
    SOLENOID VALVE RESISTANCE

    Terminal No. Name Resistance
    7 & 10 Damper clutch solenoid valve 2.7 ~ 3.4 Ω (at 20°C)
    10 & 6 Low and reverse solenoid valve
    9 & 4 Second solenoid valve
    9 & 3 Underdrive solenoid valve
    9 & 5 Overdrive solenoid valve
    Fig 6: Identifying Solenoid Valve Connector
    G03849725Courtesy of HYUNDAI MOTOR CO.