I had to rewire the radio I put in my 2004 Expedition. It was just a matter of reattaching a loose connection. I'm getting good at going in there. Anyway, now my air bag light is lit. I pulled a code the said "High resistance in air bag circuit". I also noticed my ABS and BRAKE indicators are flashing together. Sometimes faster and slower.

When I get time, I'll go back in and jiggle (<----fancy technical term) the wires to see if that clears it up. The old gal still runs just fine, I just plan to sell it down the road to clear some room in the drive. I'm figuring we might get a snowy winter so the 4X4 will sell quick.

 

I'm pretty sure it means a fuse blew when the ABS light flashes.

 

I suppose a blown fuse would cause high resistance. I was so intent on the wiring I didn't think about the fuses. I would have once I got in there I suppose. That might be the issue with the ABS and BRAKE indicators too.

 

Checked all the fuses today. None were blown. I started the truck up and ALL the lights on the dash were lit. The gauges were not working and when I turned it off the radio kept playing. Normally, opening the door will shut the radio off but it kept going. Looks like I'll be pulling the dash apart again. Evidently there is a critical wire loose somewhere. Everything was working, except the dash. Battery light lit but the charging system is fine.

I miss the old days when cars had maybe 50-75 wires.

 

Before you go through all of that, you might first want to inspect to see if any ground wires are corroded or loose. With so many things being affected, it would seem the issue is more than just one single wire or circuit.

 

I don't think it's a ground issue. When I was tracking down the power surge issues, I checked them all on both sides of the dash. I'm thinking a plug is not properly seated. I'm getting good at pulling the dash apart. It'll be a couple of hours to dismantle, recheck and reassemble it.

 

Go out to the battery and trace those grounds and clean em where they connect at the groundings, that may be the problem. New Wires replacing old connections / unrelated to what you were doing in the dash / can't tell where you are from, but Salted states create havoc.

 

The problems started when I went to rewire the radio I put in. I'm pretty sure the problem is in the steering column area. Possibly the dash cluster area. All the grounds are good and clean along with a couple extras I ran as a backup.

 

Got the issue corrected. It turned out to be one wire on the left plug going into the cluster. I pulled the cluster and got in there with a pick and tightened the clip to hold it into the plug. Plugged it back into the cluster and before I reassembled the dash, hooked the battery up and checked it. Not only did it work properly but the temperature reading is close to the outside air temperature.

The previous owner said his nephew did all the work on this. I'd like to know where his shop is so I can avoid it. I like driving this puppy as it looks enough like a police SUV people don't cut me off in traffic.