Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello and thank you for using Just AnswerI'm Paul and I will help you with your Question
have you verified voltage to the alternator?
it is not uncommon for aftermarket alternators to be defective or for the wrong application
if you have power coming to the alternator change it for a different brand
let me know how you make out and if you need more help
the alternator will cause these lights to come on.
if the lights were not on before you changed the alternator you need to change it for a different alternator it is either defective or not compatible with your vehicle (wrong application)
the Battery and Brake lights come on when charging voltage is low
do you have a voltmeter?
what is it charging at?
did you check the 100 amp fuse that feeds power to the alternator?
start the engine and put your meter across the battery what is the voltage..
with the engine off and key on do you have battery voltage to the RED and the PINK wires at the back of the alternator?
these lights come on if charging voltage is low or the alternator is defective.
let me know what you get for battery voltage engine running and what you have for voltage on the RED and PINK wires. if the RED and PINK wires both have power with key on the alternator is defective.
Remember to click accept so I get credit for my answer Positive feedback is also appreciated if you need more help let me know