Isuzu Axiom 2002-05

Alternator

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Diagnosis & Testing



  1. Disconnect the wiring connector from generator.
  2.  
  3. With the engine OFF , turn ignition switch ON and connect a voltmeter between connector terminal L (1) and ground or between terminal S (2) and ground.

    Click image to see an enlarged view

    Fig. With the engine stopped, turn starter switch to -ON- and connect a voltmeter between connector terminal L (1) and ground or between terminal S (2) and ground

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  5. If voltage is not present, the line between battery and connector is disconnected and so requires repair.
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  7. Reconnect the wiring connector to the generator, run the engine at middle speed, and turn off all electrical devices other than engine.
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  9. Measure battery voltage. If it exceeds 16V, repair or replace the generator.
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  11. Connect an ammeter to output terminal of generator, and measure output current under load by turning on the other electrical devices (ex. headlights). At this time the amperes must not be less than 15A and the voltage must not be less than 13V.
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Removal & Installation



  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Accessory drive belt
     
    Alternator wiring connectors
     
    Alternator

    Click image to see an enlarged view

    Fig. Exploded view of the drive belt (1), alternator (2), mounting bolt (3) and electrical connector (4)

     

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To install:

  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Install or connect the following:

    Alternator. Tighten the 10mm bolts to 30 ft. lbs. (41 Nm) and the 8mm bolts to 15 ft. lbs. (21 Nm).
     
    Alternator wiring connectors
     
    Accessory drive belt
     
    Negative battery cable
     

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