Get the latest advice about your car

Get Started
Advice » Q&A » 2003 Cadillac CTS

Q&A

Ask Your Question

2003 Cadillac CTS

Question: Alt or ECU

Question

B loc, 3.2L V6, Liberal, KS, December 12, 2009, 19:32
Profile_thumbnail
 Rookie

While driving my car the TC, break light, battery, and my battery was reading at 9 Volts,and my suspension light came on, i was woundering if it could be the Alternator or the ECU that is causing the problem or something else?

1 Answer
Answer It
Flag This

  • Answer #1

    A1 Customs Inc. December 13, 2009, 06:26
    Profile_thumbnail
     Rookie

    If you have a multimeter you'll be able to check the alternators output at the time of the problem. Eventhough many vehicles will illuminate multiple lights when the alternator fails remember to also check your PCM operation by monitoring the data values while the engine is running. Be sure to compare the data values with the calibrated values for your vehicle. Good luck.

    Reply
    Flag This
Answer Ranks

This week's top 10

1 globalhelper 6 carpetvan2
2 raiderron 7 Merrimack Auto
3 csubak30 8 2004toycam
4 milesauto 9 Collins Auto
5 jose8889 10 Camster