Replaced both battery and alternator and battery light still on. What could be wrong? Is it a fuse, pulley?
Nov 5, 2020 at 8:27 PM
Battery light remains on after replacing alternator and battery
1998 OLDSMOBILE DELTA 88
SWEETJESUS
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Good morning,
I attached a wiring diagram for you to view. Check the 2 fuses that I circled for power on both sides.
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-to-check-a-car-fuse
If they are good, we need to test for voltage to the alternator. You will need a voltmeter for the test. The ECM controls the alternator but before we go there, we need to do these checks.
https://www.2carpros.com/articles/how-to-check-a-car-alternator
Roy
I attached a wiring diagram for you to view. Check the 2 fuses that I circled for power on both sides.
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-to-check-a-car-fuse
If they are good, we need to test for voltage to the alternator. You will need a voltmeter for the test. The ECM controls the alternator but before we go there, we need to do these checks.
https://www.2carpros.com/articles/how-to-check-a-car-alternator
Roy
Image (Click to enlarge)
Nov 6, 2020 at 4:56 AM