Generator Inspection [AJ]: Generator: Current

1. Verify that the battery is fully charged.
   • Charge if necessary.
2. Verify that the drive belt deflection/tension is correct. (See DRIVE BELT INSPECTION [AJ] .)
   • Replace if necessary.
3. Disconnect the negative battery cable.
4. Connect an ammeter, capable of reading 120 A or above, between generator terminal B and the wiring harness.
5. Connect the negative battery cable.
6. Turn off all electrical loads.
7. Start the engine and increase the engine speed to 2,000-2,500 rpm. 
8. Turn the following electrical loads on and verify that the current reading increases.
   1. Headlights
   2. Blower motor
   3. Rear window defroster
      • If generator terminal B current will not increase, repair or replace the generator as necessary.
      NOTE:

      • Current required for generating power varies with electrical loads applied.

Measuring conditions 

Room temperature: 20 °C {68 °F} 

Voltage: 13.5 V Engine hot