Hyundai Car 1999-05

Vehicle Speed Sensor

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Operation



On 1999-2003 vehicles, the sensor is a reed switch type. On 2004-2005 vehicles, the sensor is a hall effect sensor. The sensor converts the transaxle gear revolutions into pulse signals, which are sent to the ECM.

On 1997-2003 vehicles, the sensor is a reed switch type. On 2004-2005 vehicles, the sensor is a hall effect sensor. The sensor converts the transaxle gear revolutions into pulse signals, which are sent to the ECM.

On 1999-2003 vehicles, the sensor is a reed switch type. On 2004-2005 vehicles, the sensor is a hall effect sensor. The sensor converts the transaxle gear revolutions into pulse signals, which are sent to the ECM.

Removal & Installation



  1. Raise and support the vehicle safely.
  2.  
  3. Place a drip pan below the speed sensor to catch any spilled fluid.
  4.  
  5. Disconnect the connector.
  6.  
  7. Remove the sensor from its mounting.
  8.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Replace any lost fluid.
  4.  

  1. Raise and support the vehicle safely.
  2.  
  3. Place a drip pan below the speed sensor to catch any spilled fluid.
  4.  
  5. Disconnect the connector.
  6.  
  7. Remove the sensor from its mounting.
  8.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Replace any lost fluid.
  4.  

2.0L Engine
  1. Raise and support the vehicle safely.
  2.  
  3. Place a drip pan below the speed sensor to catch any spilled fluid.
  4.  
  5. Disconnect the connector.
  6.  
  7. Remove the sensor from its mounting.
  8.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Replace any lost fluid.
  4.  

Testing



  1. To check the sensor output circuit for continuity, disconnect the ECM connector. Move the vehicle or turn the speedometer cable.
  2.  
  3. To measure the power supply voltage, disconnect the connector. Turn the ignition switch to the ON position.
  4.  
  5. The voltage should be 4.5-4.9 volts, between the connector terminals.
  6.  
  7. Using an ohmmeter, check for continuity of the ground circuit.
  8.  

  1. To measure the power supply voltage, disconnect the connector. Turn the ignition switch to the ON position. Specification is battery voltage (between ground and terminal 2 of the harness connector).
  2.  
  3. To check for an open circuit, or a short circuit to ground between the ECM and the sensor, disconnect the ECM connector. Between ground and terminal 3 of the harness connector.
  4.  
  5. To check for an open circuit, or a short circuit to ground between the ECM and the sensor, disconnect the vehicle speed sensor connector. Between ground and terminal 1 of the harness connector).
  6.  
  7. To check for an open circuit between the vehicle speed sensor and ground, disconnect the vehicle speed sensor connector.
  8.  

  1. To check the sensor output circuit for continuity, disconnect the ECM connector. Move the vehicle or turn the speedometer cable.
  2.  
  3. To measure the power supply voltage, disconnect the connector. Turn the ignition switch to the ON position.
  4.  
  5. The voltage should be 4.5-4.9 volts.
  6.  
  7. Using an ohmmeter, check for continuity of the ground circuit.
  8.  

  1. To measure the power supply voltage, disconnect the connector. Turn the ignition switch to the ON position. Specification is battery voltage (between ground and terminal 2 of the harness connector).
  2.  
  3. To check for an open circuit, or a short circuit to ground between the ECM and the sensor, disconnect the ECM connector. Between ground and terminal 3 of the harness connector.
  4.  
  5. To check for an open circuit, or a short circuit to ground between the ECM and the sensor, disconnect the vehicle speed sensor connector. Between ground and terminal 1 of the harness connector).
  6.  
  7. To check for an open circuit between the vehicle speed sensor and ground, disconnect the vehicle speed sensor connector.
  8.  

2.0L Engine
  1. To measure the power supply voltage, disconnect the connector. Turn the ignition switch to the ON position. Specification is battery voltage (between ground and terminal 2 of the harness connector).
  2.  
  3. To check for an open circuit, or a short circuit to ground between the ECM and the sensor, disconnect the ECM connector. Between ground and terminal 3 of the harness connector.
  4.  
  5. To check for an open circuit, or a short circuit to ground between the ECM and the sensor, disconnect the vehicle speed sensor connector. Between ground and terminal 1 of the harness connector).
  6.  
  7. To check for an open circuit between the vehicle speed sensor and ground, disconnect the vehicle speed sensor connector.
  8.  

2.7L Engine
  1. To check the sensor output circuit for continuity, disconnect the ECM connector. Move the vehicle or turn the speedometer cable.
  2.  
  3. To measure the power supply voltage, disconnect the connector. Turn the ignition switch to the ON position.
  4.  
  5. The voltage should be 4.5-4.9 volts.
  6.  
  7. Using an ohmmeter, check for continuity of the ground circuit.
  8.  

 
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