GENERATOR INSPECTION [AJ (3.0L Duratec)]

Generator warning light

1. Verify that the battery is fully charged.

2. Verify that the drive belt deflection/tension is within the specification. (See DRIVE BELT INSPECTION [AJ (3.0L Duratec)].)

3. Turn the engine switch to the ON position and verify that the generator warning light illuminates.

• If it does not illuminate, inspect the generator warning light and the wiring harness between the battery, generator warning light, and PCM terminal P.

• If the generator warning light and the wiring harness are normal, inspect the PCM.

4. Verify that the generator warning light goes out after the engine is started.

• If it does not goes out, inspect the generator.

Generator

Voltage

1. Verify that the generator is fully charged.

2. Verify that the drive belt deflection/tension is within the specification. (See DRIVE BELT INSPECTION [AJ (3.0L Duratec)].)

3. Turn off all electrical loads.

4. Start the engine and verify that the generator rotates smoothly without any noise while the engine is running.

5. Measure the voltage at each terminal using a tester.

Standard

^*: Turn the following electrical loads on and verify that the voltage reading increases.

• Headlight (high beam)

• Blower motor (MAX)

• Rear window defroster

• Brake light

Current

Note

• Since the charging current decreases rapidly after starting the engine, carry out the following procedure quickly, and read the maximum current value.

1. Verify that the battery is fully charged.

2. Verify that the drive belt deflection/tension is within the specification. (See DRIVE BELT INSPECTION [AJ (3.0L Duratec)].)

3. Disconnect the negative battery cable.

4. Connect a tester capable of reading 120 A or more between generator terminal B and the wiring harness.

5. Connect the negative battery cable.

6. Turn off all electrical loads.

7. Start the engine.

8. Adjust the engine speed to the following:

Engine speed

2,000 rpm

Note

• When the electrical load of the vehicle is low, specified current cannot be verified although the generator is normal. In this case, increase the electrical load (turn on the headlight and leave it for a while to discharge the battery) and recheck.

• When the generator itself or the ambient temperature are too high, specified current also cannot be verified. In this case, cool down the generator and recheck.

9. Turn the following electrical loads on and verify that the current reading increases more than the minimum value indicated below.

• Headlight (high beam)

• Blower motor (MAX)

• Rear window defroster

• Brake light

Maximum

58 A [Generator terminal B voltage: 13.0-15.0 V, 2,000 rpm]