Generator current inspection

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. (See BATTERY INSPECTION .)
Verify that the assembly condition of the drive belt is normal. (See DRIVE BELT INSPECTION .)
Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Connect a tester, which can read 120 A or more, between generator terminal 1A and generator terminal 1A cable.
Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Turn off all electrical loads.
Start the engine.
Increase engine speed to 2, 500 RPM.
NOTE:
- When the electrical load on the vehicle is low, the specified current cannot be verified although the generator is normal. In this case, increase the electrical load (Leave the headlights turned on for a while, then discharge the battery, or use a similar method.) and recheck.
- If the generator itself or the ambient temperature are too high, the specified current also cannot be verified. In this case, cool down the generator and recheck.
With the electric loads such as headlights, blower motor, rear window defogger, brake lights turned on, verify that the current value increases.
- If the current value does not increase, replace the generator. (See GENERATOR REMOVAL/INSTALLATION .)
Generator generated current minimum value

70% of the nominal output current (nominal output current: 100 A)

[Ambient temperature 20°C {68°F}, voltage 13.0-15.0 V, both engine and generator are hot]