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Regulated Voltage Test (2.4L DOHC)

NOTE: If the voltage is 0 the cause is probably an open circuit in the wire or fusible link between the generator "S" terminal and the battery (+) terminal.
  1. Be sure to check the following:
    • Generator installation and wiring connections. See Fig 1.
      Fig 1: Checking Regulated Voltage Test [2.4L]
      G00312622Courtesy of KIA MOTORS AMERICA, INC.
    • Battery fully charged.
    • Generator drive belt tension.
    • Fusible link.
    • Abnormal noise from the generator while the engine is running.
  2. Turn the ignition switch to the "OFF" position.
  3. Disconnect the negative battery cable.
  4. Connect a digital-type voltmeter between the generator "S terminal and the ground. (Connect the (+) lead of the voltmeter to the "S' terminal. Connect the (-) lead of the voltmeter to a secure ground or to the battery (-) terminal.)
  5. Disconnect the generator output wire from the generator "B" terminal.
  6. Connect a DC test ammeter with a range of 0-100A in series between the "B" terminal and the disconnected output wire. (Connect the (+) lead of the ammeter to the "B' terminal. Connect the (-) lead of the ammeter to the disconnected output wire.)
  7. Reconnect the negative battery cable.
  8. Connect a tachometer or the scan tool. Check that the reading on the voltmeter is equal to the battery voltage.
  9. Make sure all lights and accessories are off.
  10. Start the engine.
  11. Increase the engine speed to approx. 2,500 r. /min.
  12. Read the voltmeter when the current output by the generator becomes 10 A or less.
  13. . If the voltage reading conforms to the value in the volt age regulation table, the voltage regulator is operating normally. If the voltage is not within the standard value, a malfunction of the voltage regulator or of the generator exists.
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