gregaudio

Alernator Voltage & ABS Light

Recommended Posts

'02 Camry, V6, automatic. I noticed while driving today that my ABS light comes on when the engine is over 1000RPM but turns off while idling. I put a multimeter on the battery terminals and notice that the alternator voltage will reach 18V at about 3000RPM. While stationary in Neutral I can press the accelerator and watch the tacho and the voltage. The ABS light comes on as the alternator reaches 17V.

I have checked the battery, all cells are full of water and the Voltage only drops from 12.6 to about 12.4 when I select high beam with the engine off.

Any thoughts or suggestions would be much appreciated.

Share this post


Link to post
Share on other sites
 

Sounds like the regulator in the alternator is gone - you should never be getting more than ~14.5V when the engine is running, otherwise you'll cook the battery.

Share this post


Link to post
Share on other sites

Thanks Hiro. Driving home tonight the car radio would shut off at higher revs too. Will limp it to an auto sparky ASAP before something melts.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...