Step
| Action
| Value(s)
| Yes
| No
|
1
|
- Disconnect the generator connector.
- Turn the ignition to RUN with the engine OFF.
- Connect a voltmeter set at DC scale between the generator connector
terminal L and ground.
Is the battery voltage greater than the specified value?
| 0 V
|
Go to Step 2
|
Go to Step 3
|
2
| Move the voltmeter
lead from terminal L to the generator BAT terminal.
Is the voltage more than specified value?
| 0 V
|
Go to Step 4
|
Go to Step 5
|
3
|
- Check for open or bad connections in CKT 25 between the generator
BAT terminal and I/P terminal C12 (Chevrolet) and A14 (Pontiac).
- Check for an open in fuse 9 or CKT 39 to I/P. (If there is an
open in fuse 9 or CKT 39, the I/P will not operate correctly.)
- Repair any opens or bad connections.
Is the repair complete?
| --
| System
OK
| Refer to Section
8C
|
4
|
- Connect the generator connector.
- Run the engine at fast idle with all of the accessories OFF.
- Connect a voltmeter set at the DC scale across the battery terminals.
Is the reading within the specified value?
| 13.5-15.5 V
|
Go to Step 6
|
Go to Step 7
|
5
| Check for an open in CKT 1
between the generator BAT terminal and the battery. Repair the open as necessary.
Is the repair complete?
| --
| System
OK
| --
|
6
|
- Load test the generator.
- Replace the generator if necessary. Refer to
Generator Replacement
.
- If the generator is OK, perform the Parasitic Load Test. Refer
to
Battery Electrical Drain/Parasitic Load Test
.
| --
| --
| --
|
7
| Repair or replace the generator. Refer
to
Generator Replacement
.
Is the repair complete?
| --
| System
OK
| --
|
