2000 Infiniti G20 charging System

Tiny
MIKEESM
  • MEMBER
  • 2000 INFINITI G20
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 125,000 MILES
2000 Infiniti G20 125k miles when I got the car the alternator when bad, replaced it. And again 10 years and alternator goes bad, replaced it and 2 days of driving, the battery light and brake light at the dash board lighted up. Checked the alternator and was not giving charge. Checked wires electrical did not find nothing wrong. The battery is good a few months on it. Question is why the alternator go bad the new one right after the old one, and the old one did not set and lights on.
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Sunday, June 20th, 2010 AT 11:25 PM

5 Replies

Tiny
RASMATAZ
  • MEMBER
Hi mikeesm, Welcome to 2carpros and TY for the donation

You need to test the wiring to and from the alternator for shorts and opens -see wiring diagram and also test all the fuses and the charge indicator


http://www.2carpros.com/forum/automotive_pictures/12900_a1_12.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_a2_11.jpg

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Monday, June 21st, 2010 AT 1:03 AM
Tiny
MIKEESM
  • MEMBER
Thanks for the diagram, ill check the wiring. But if there is a short shouldn't a fuse blow and I checked the fuses, and none are bad. Also the checked if the car would be running after disconnecting the battery cable and it died so olny two days and the (new) alternator went bad. All write bad when I double check the fuses and the wiring. I placed everything back as it should go.
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Monday, June 21st, 2010 AT 8:19 AM
Tiny
RASMATAZ
  • MEMBER
Get the alternator load tested if okay recheck the wiring as shown in the pic
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Monday, June 21st, 2010 AT 3:20 PM
Tiny
MIKEESM
  • MEMBER
I load tested the alternator and it failed. Also another this I was checking the wiring the connection white and yellow/red each to ground and it was giving me almost 2volts for every wire to ground. What should the normal reading on the volt meter should be. Also double checked all fuses and there are good.
Question what reading on the meter should I be getting battery disconnected or connected both leads or one lead?
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Monday, June 21st, 2010 AT 7:42 PM
Tiny
RASMATAZ
  • MEMBER
The whte wire should have battery voltage if not check fuse no.37 7.5amp in the fuse and fusible link box inear the battery, the yellow and red should read less than battery voltage bcuz irs going thru a resistor and the charge indicator bulb-also check fuse no.11 10amp in the fuse block behind dash left of steering column


http://www.2carpros.com/forum/automotive_pictures/12900_a1_13.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_a2_12.jpg

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Monday, June 21st, 2010 AT 8:21 PM

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