V1 No Start Issue - B+ Terminal/Fuse Box

[Gtstorey]

It could be a bad/missing ground that ends of grounding through the headlight or relay once the lights are turned on.

 

[Sluggonaut]

Have you tried backing off the 7mm bolts in the fusebox, then push the 7mm bolt to back off the electrical connector, then retighten the 7mm bolt to reseat the electrical connector. Do this to all the electrical connector blocks. Sometimes reseating them will fix intermittent electrical problems. You can do this on the rear fusebox, and the BCM.

I had an issue after installing/testing my lights. It was due to the fusebox connections. I stripped out one of the captured bolt/nut parts so it wouldn't tighten down all the way. Even with all the other bolts connecting well, just one not tightening properly will cause intermittent electrical issues.

 

[Robinjo]

Can someone pull the right wiring schematic for the light/turn signal switch? I’m having s hard time making sense of it all on AllData. I’m looking for the switch connections and what spots on the BCM/Fuse box it goes to.

 

[Ross]

Found it.
AllDataDIY
Your Vehicle: 2006 Chevrolet Cobalt L4-2.0L SC VIN P
Vehicle » Diagrams » Electrical Diagrams » Lighting and Horns » System Diagram » Exterior Lights Diagram 3

 

[Robinjo]

Thanks. I think I was looking at Diagram 2. I’ll check out 3.

 

[Gtstorey]

Have you been following jirwin thread with the same problem and having the headlight switch making it work?

 

[Robinjo]

I have. I’m not clear on what he did though.

 

[Gtstorey]

He had a shot fuse in the bcm that was probably being back fed when he wired a light into the circuit. Make sure you don’t have any fuses shot in bcm.

 

[Robinjo]

I did today. No luck

 

[Robinjo]

Update: I did find one popped, my fuse checking skills are on par with my wire diagram comprehension skills….
Everything works with key on, no reset. I’ll check back after work. Fuse #8 Ignition Switch/Pass Key was the culprit

Still works when I checked this afternoon.