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Home >> Suzuki >> 2012 >> SX4 Base >> Repair and Diagnosis >> Electrical >> Charging Systems >> Diagnostic Information and Procedures >> Generator Test >> No-Load Check

No-Load Check

NOTE: Use fully charged battery.
  1. Check for DTC. See DTC CHECK

    If there is any DTC, perform trouble shooting for applicable DTC and then clear DTC.

    Trouble shooting: See DTC TABLE

    DTC clearance: See DTC CLEARANCE

  2. Turn off all electrical loads (5).
  3. Connect voltmeter (3) and ammeter (2) as shown in figure.
  4. Start engine and warm it up to normal operating temperature.
    Fig 1: Connecting Voltmeter And Ammeter
    G06867268Courtesy of SUZUKI OF AMERICA CORP.
  5. Run engine around 2, 000 RPM and read meters.
    • If voltage is higher than standard value, check ground circuit of brushes, see GENERATOR INSPECTION .

      If brushes are not grounded, replace IC regulator.

    • If voltage is lower than standard value, inspect rotor, stator, rectifier, bushes and regulator. See GENERATOR INSPECTION 

      Specification for generator test (No-load check) 

      Current: 10A 

      Regulated voltage: 14.2 - 14.8 V (at 20 °C, 68 °F) 

      Fig 2: Graph For Generator Test
      G06867269Courtesy of SUZUKI OF AMERICA CORP.
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