Generator Inspection [LF]: Generator: Current
NOTE:
- Since the charging current decreases rapidly after starting the engine, carry out the following procedure quickly, and read the maximum current value.
- Verify that the battery is fully charged.
- Verify that the drive belt deflection/tension is correct. (See DRIVE BELT INSPECTION [LF] .)
- Disconnect the negative battery cable.
- Connect a tester, which can read 120 A or more , between generator terminal B and the wiring harness.
- Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)
- Turn off all electrical loads.
- Start the engine.
- Increase engine speed to 2,500 rpm. NOTE:
- When the electrical load of the vehicle is low, the specified current will not be verified although the generator is normal. In this case, increase the electrical load (by turning on the headlight and leave it for a while, then discharge the battery or by similar methods) and recheck.
- When the generator itself or the ambient temperature are too high, the specified current cannot be verified. In this case, cool down the generator and recheck.
- Turn the following electrical loads on and verify that the current reading increases more than the minimum value indicated below.
- If it is not as specified, go to the PCM AND GENERATOR SHEARING INSPECTION .
- Headlights (high-beam)
- Blower motor (HI)
- Rear window defroster
- Brake light
Generator generated current minimum value
70% of the nominal output current (nominal output current: 100 A)
[ambient temp. 20°C {68°F}, voltage 13.0-15.0 V, both engine and generator are hot]