Battery light and dash lights out of no where
09-09-18, 10:48 AM
#1
Driver School Candidate
Thread Starter
Join Date: Aug 2018
Location: ca
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Battery light and dash lights out of no where
Just while driving my dash lights came on then left when I stepped on the gas also when I turned the ac on the lights and Navi went out as if it didn’t have power so I was guessing alternator!!!!!! Lmk Lexus #socalSc430 drove fine since the new starter
09-09-18, 02:07 PM
#2
Lead Lap
Are you asking what to do or is your last phrase stating that the new starter fixed the problem?
09-09-18, 02:33 PM
#3
Driver School Candidate
Thread Starter
Join Date: Aug 2018
Location: ca
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Last time I thought it was the alternator it wasn’t ended up being the starter was bad I’m thinking it’s the alternator now what do you guys think I just went to the car 10 min ago and it started and idled fine but soon as I press the AC on the Navi gorse out and radio flicker and ac gets weak
09-09-18, 02:52 PM
#4
Lead Lap
Check your battery's voltage, as it is reacting like the charge on the battery is low. It does sound like the alternator is going out or there is a bad power (being power or ground) connection somewhere in the power lines in the car. So basically, you need to determine whether the battery is going bad, the alternator is going bad or whether there is a bad connection somewhere preventing the power from getting through the wires. Those are the 3 most likely causes of your problem. The next likely cause will be way lower on the likelihood scale.
09-10-18, 02:42 PM
#5
Pole Position
You can put a volt meter on you battery while the car is running. The meter should read somewhere in the 14.4 range.
Or you can go to your local auto part national chain store and they will usually check your electrical system for free.
Here is a good video on the voltmeter test:
Or you can go to your local auto part national chain store and they will usually check your electrical system for free.
Here is a good video on the voltmeter test:
09-10-18, 03:47 PM
#6
Last time I thought it was the alternator it wasn’t ended up being the starter was bad I’m thinking it’s the alternator now what do you guys think I just went to the car 10 min ago and it started and idled fine but soon as I press the AC on the Navi gorse out and radio flicker and ac gets weak
09-10-18, 06:46 PM
#7
Pole Position
Last time I thought it was the alternator it wasn’t ended up being the starter was bad I’m thinking it’s the alternator now what do you guys think I just went to the car 10 min ago and it started and idled fine but soon as I press the AC on the Navi gorse out and radio flicker and ac gets weak
2. Alternator
There is test you can do to find out which one? Go to Autozone, or better yet, call AAA.
The following users liked this post:
steviant (02-22-23)
Trending Topics
09-11-18, 09:21 AM
#8
Very simple check on the battery voltage while the engine is running. If you measure 13.5V and higher, alternator is good. Anything less than 13V, your alternator is not good. I just replaced my alternator on my IS350. The battery light was ON and when I measured the voltage while it was running, it showed 11.9V. Means it is barely supplying the 12V that is required and therefore if you continue running, the battery will eventually fail and you may get stranded. Will cost more money for the repair plus a huge inconvenience.
Thread
Thread Starter
Forum
Replies
Last Post
vassey50
ES - 1st to 4th Gen (1990-2006)
11
11-27-08 10:36 PM