Battery/alternator light

Asked by Guru9Z7PCF Dec 22, 2020 at 12:53 PM about the 2008 Pontiac G6 GT Convertible

Question type: Maintenance & Repair

I changed battery, alternator, battery cable ends,
alternator was from junk yard but tested good. The
light still comes on after starting. I've checked wire
from alternator to battery it's good. Please help!

1 Answer
26,860

oilyspill answered 3 years ago

Note the diagram. The bat terminal at generator is hot all the time, even with key off. Use a test light to check, is it hot. If it isn't maybe fusible link? Note the battery current sensor. See the f and l terminals at generator, 5 volts on l terminal, the pcm cycles that voltage to ground depending on charge needed. Do you have a meter that will check duty cycle? Any applicable trouble codes? that's all I know. good luck

Mark helpful

Your Answer:

Related Questions

  • Battery/alternator light 1 Answer

    I changed battery, alternator, battery cable ends, alternator was from junk yard but tested good. The light still comes on after starting. I've checked wire from alternator to battery it's good. Pl...

    2008 Pontiac G6 GT Convertible

    -

    Maintenance & Repair

  • new alternator not charing battery 8 Answers

    I bought a New alternator and battery and the alternator still not charging battery

    2008 Pontiac G6 Base

    -

    Maintenance & Repair

  • Do I need a new battery or alternator??? 1 Answer

    My car died on me 2x now and service traction and service esc came on my dashboard... what can be the cause of the problems... bad battery, bad alternator, or bad fuse???

    2008 Pontiac G6 GT Coupe

    -

    Maintenance & Repair

  • Alternator 7 Answers

    What will happen if my alternator goes out?

    2009 Pontiac G6 Base

    -

    Maintenance & Repair

  • Alternator 2 Answers

    My car has a battery icon on the dashboard i bought a new battery and the icon is still there so I thought the junkyard gave me a bull**** battery so I bought a newer one from Walmart. It started u...

    2006 Pontiac G6 Base V6

    -

    Maintenance & Repair

Shortcuts

Search Pontiac G6 Questions

CarGurus Experts

  • #1
    BritishTech77
    Reputation
    3,610
  • #2
    Norm Davis
    Reputation
    2,800
  • #3
    Paul
    Reputation
    1,650
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac G8
1 listings starting at $6,995
Used Dodge Charger
44 Great Deals out of 828 listings starting at $6,999
Used Pontiac Grand Prix
3 listings
Used Honda Accord
41 Great Deals out of 980 listings starting at $2,995
Used Chevrolet Corvette
33 Great Deals out of 837 listings starting at $14,900
Used Ford Mustang
48 Great Deals out of 1,640 listings starting at $5,999
Used Honda Civic
195 Great Deals out of 3,923 listings starting at $1,130
Used Dodge Challenger
27 Great Deals out of 744 listings starting at $12,979
Used Mazda MAZDA3
77 Great Deals out of 1,358 listings starting at $2,777
Used Pontiac Solstice
3 Great Deals out of 30 listings starting at $9,800
Used Pontiac G5
6 listings
Used Ford Fusion
23 Great Deals out of 414 listings starting at $4,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.