No crank, no start, and no power to the dash

1999 CHEVROLET CAVALIER
185,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
Avatar
TBFC
  • MEMBER
  • 2 POSTS
New alternator, good battery, checked all fuses/relays and bench tested a
new ignition switch, scan tool says cannot link. Getting power to port. So, why no crank no start or power to dash? Also cleaned grounds
May 1, 2022 at 3:07 AM
Advertisement
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
I would suggest we start at the basics by going to the starter and check for 12 volts.

I suspect you are not going to have it on the trigger wire. Which means we are going to have to go back to the park neutral switch.

Clearly you should have 12 volts on the red wire all the time but assuming you do then the issue is going to be the park neutral switch.

https://www.2carpros.com/articles/how-to-check-wiring

However, if you have no voltage at the red wire then more the likely the ignition fuse is the issue.

This is unlikely if you checked the fuses but unless you missed this one, it is most likely fine.

I attached the wiring diagram below which will illustrate what is happening. Unfortunately, I don't think the scan tool is related to this.

Please see the wiring diagram below and let me know what you find.

Thanks
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
May 2, 2022 at 5:29 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.