Eclipse L4-1997cc 2.0L DOHC Turbo 16 Valve (1996)
Voltage Regulator: Testing and Inspection
Regulated Voltage Test
This test determines if the voltage regulator is correctly controlling the generator output voltage.
1. Be sure to check the following:
-
Generator installation and wiring connections
-
Battery fully charged. See: Battery
-
Generator drive belt tension
-
Fusible link
-
Abnormal noise from the generator while the engine is running
2. Turn the ignition switch to the OFF position.
3. Disconnect the negative battery cable.
4. Connect a digital-type voltmeter between the generator S" terminal and the ground. (Connect the (+) lead of the voltmeter to the S" terminal.
Connect the (-) lead of the voltmeter to a secure ground or to the battery (-) terminal.)
5. Disconnect the generator output wire from the generator B" terminal.
6. Connect a DC test ammeter with a range of 0 - 100 A in series between the B" terminal and the disconnected output wire. (Connect the (+) lead of
the ammeter to the B" terminal. Connect the (-) lead of the ammeter to the disconnected output wire.)
7. Connect a tachometer.
8. Reconnect the negative battery cable.
9. Turn the ignition switch to the ON position and check that the reading on the voltmeter is equal to the battery voltage.
NOTE:
If the voltage is 0 V, the cause is probably an open circuit in the wire or fusible link between the generator S" terminal and the battery (+) terminal.
10. Make sure all lights and accessories are off.
11. Start the engine.
12. Increase the engine speed to Approx. 2,500 r/min.
13. Read the voltmeter when the current output by the generator becomes 10 A or less.
Voltage Regulation Table
14. If the voltage reading conforms to the value in the voltage regulation table the voltage regulator is operating normally.