Matt67ss
Member
The headlamp relay does control ground to the circuit but the body control module activates the relay. Do you have a DMM or a power probe?
Local Legend Don't Call It An S10
- Thread starter the bodj
- Start date
the bodj
Well-known member
I do have a dmm and can blee borrow a power probe
the bodj
Well-known member
Also, ground from cab to chassis didn’t do anything
Matt67ss
Member
Check for battery voltage at these spots with the headlamp switch on. No voltage the BCM is the problem. No power at the yellow wire there is a short or open before the relay.
the bodj
Well-known member
Great! I'll give it a shot this afternoon and report back. I really appreciate the help
Matt67ss
Member
The high beams work from the turn signal switch and the headlights are controlled by a separate switch on the dash right?
the bodj
Well-known member
Correct.
Not silly, and I appreciate any help on things I may have overlooked! You are correct, that's how they work. Yes, that is functioning, but the weird thing is doing that is turning the parking lamps on and off. They are behaving like the headlights should.
Matt67ss
Member
The switch you replaced was the dash headlight switch or the multifunction switch on the column? Don’t want you replacing a module without checking everything out
the bodj
Well-known member
Dash headlight switch was replaced.
Kellyex1450
Well-known member
I had weird issues with my lights on my 03 Sonoma and replaced my multi function switch which fixed the issues
, it was more on the blinker side but there is a lot that goes through that thing. might be worth looking into.
, it was more on the blinker side but there is a lot that goes through that thing. might be worth looking into.
the bodj
Well-known member
Not a bad idea. Just about the only thing I haven’t replaced at this point
Chancegoodman
Active member
Have you done any voltage drop test on ground and power side of the wires?
the bodj
Well-known member
Nope. Not sure what you mean. I’m not a writing guy
Chancegoodman
Active member
Well unfortunately I would not be able to explain it very well but here’s a video that might give some explanation
Chancegoodman
Active member
I’m a if I can beside you I can explain and do it but if I have to type it out you won’t learn a damn thing
the bodj
Well-known member
Been struggling with non-working headlights. Spent quite a while with the Fablab and Jesse to find the root cause, to no avail. Jesse ended up adding it's own relay triggered from the oem headlamp switch, so it works like oem, which is good enough for me.
Spent the 10/12/24 weekend in Mammoth where we did an awesome run on Saturday. There is an entire write up, but here is my cliffnotes + pictures:
Left Simi with my wife and one of our dogs at 8pm after waiting for an amazon package with Brad's new trans cooler and waiting for traffic to die down. Got to Mammoth at Dusty's house at 1:30am. Woke up and ready to hit the trail, but radio fuse blew because I accidentally shorted the trans temp gauge while reinstalling, which is powered from same radio power wire. New fuse and we hit the trail. A few miles in and I stopped to take a leak. Opened my door and it nearly fell off. Turns out the upper hinge pin fell out. A couple bolts from Turboyota and we were on our merry way.
Beautiful scenery abounded, along with many laughs at certain member's dating preferences, and it was just an awesome time overall. Hit a cool jump 3/4 throttle in first gear and sent 'er a bit hard. Landed hard passenger front, causing me to lose headlights (eff). Kept jumping a bit more and then we decided to head back to Dusty's house. Hit a cattle grate at 50-60mph and the jolt caused me to lose all power. Spent a while trying to find the cause, but no dice. Towed home 9 miles, running over the strap the last 500 feet, ripping my passenger soft brake line off. Got it into Dusty's shop and had pizza and beer while repairing the brake line (thanks Turbo!), and finding my ECU mount had broken, letting it flop around. I found a schematic and Rouse determined it was ECM B that was most likely popped. Simultaneously, Patrick had been testing all fuses, only to find that one was popped - ECM B. A new 20amp fuse and it roared to life.
More pizza and beer was had, and I slept very relieved. Woke up the next morning and hit the pike home. 108 dirt miles, 730 miles total.
Zoom in - theres four bucks!
Spent the 10/12/24 weekend in Mammoth where we did an awesome run on Saturday. There is an entire write up, but here is my cliffnotes + pictures:
Left Simi with my wife and one of our dogs at 8pm after waiting for an amazon package with Brad's new trans cooler and waiting for traffic to die down. Got to Mammoth at Dusty's house at 1:30am. Woke up and ready to hit the trail, but radio fuse blew because I accidentally shorted the trans temp gauge while reinstalling, which is powered from same radio power wire. New fuse and we hit the trail. A few miles in and I stopped to take a leak. Opened my door and it nearly fell off. Turns out the upper hinge pin fell out. A couple bolts from Turboyota and we were on our merry way.
Beautiful scenery abounded, along with many laughs at certain member's dating preferences, and it was just an awesome time overall. Hit a cool jump 3/4 throttle in first gear and sent 'er a bit hard. Landed hard passenger front, causing me to lose headlights (eff). Kept jumping a bit more and then we decided to head back to Dusty's house. Hit a cattle grate at 50-60mph and the jolt caused me to lose all power. Spent a while trying to find the cause, but no dice. Towed home 9 miles, running over the strap the last 500 feet, ripping my passenger soft brake line off. Got it into Dusty's shop and had pizza and beer while repairing the brake line (thanks Turbo!), and finding my ECU mount had broken, letting it flop around. I found a schematic and Rouse determined it was ECM B that was most likely popped. Simultaneously, Patrick had been testing all fuses, only to find that one was popped - ECM B. A new 20amp fuse and it roared to life.
More pizza and beer was had, and I slept very relieved. Woke up the next morning and hit the pike home. 108 dirt miles, 730 miles total.
Zoom in - theres four bucks!
Attachments
the bodj
Well-known member
Piss break on the way home. What a view!
Made it home with zero issues and parked it in the driveway. Thursday I quickly rewelded the ECU mount and filled it with gas in preparation for the Clean Dezert 10/19/24 prerun. Logged 125 dirt miles and nearly no issues (front passenger resi came loose? and passenger tie rod is bending more). A little time during the next two weeks and it'll be ready for the actual event Nov. 2nd.
Thanks for the pictures, Elliot!
Made it home with zero issues and parked it in the driveway. Thursday I quickly rewelded the ECU mount and filled it with gas in preparation for the Clean Dezert 10/19/24 prerun. Logged 125 dirt miles and nearly no issues (front passenger resi came loose? and passenger tie rod is bending more). A little time during the next two weeks and it'll be ready for the actual event Nov. 2nd.
Thanks for the pictures, Elliot!
the bodj
Well-known member
Didn’t have a ton of time the past couple of weeks to spend much time on the truck and prepping the camper. Made a quick fix to my slightly bowed tie rod by clamping a 1” DOM tube to the backside and welding it together. Ended up being a pretty solid fix! (Or so I thought… ominous foreshadowing). Added another inch or so of preload to the rear coils, and lowered the coil slider stops to where they’d actually engage. I never messed with them, and figured it would help with some bottoming resistance while towing. Also, added another set of limit straps with a higher bolt hole to limit droop while towing.
Anyways, the truck towed GREAT. Super stable at any speed, and the electronic brake controller stopped everything without issue. I think I’d like to add a short air shock that can be removed with some clevis pins so I can get the ride height back while towing.
Loaded up the dogs and wife and we left around 6:30am. A bit later than I wanted, but we were exhausted from the nonstop week. All good. Made good time on the road and the truck hummed along nicely. Pulled up the hills on the 14 with ease at 2000RPM, 200* coolant temp, and 125* trans oil temp (measured in the pan).
Pulled up to camp and got the pop up trailer situated, helped move some stuff for Adam since the wind was blowing it all away, and then I took the wife and dogs to go get some trash. We found a nice pile in College Hills, filled all of our bags, and made our way back.
View attachment 30250
Dropped the trash off, proceeded to win nothing at the raffle (still had a blast), and then found another s10 nerd. We’ve been internet friends for a while, since he also has a crew cab and there are only a small handful of them built. This was the first time I’ve seen his truck, and it is awesome. Similar specs to mine (LT, linked, caged, 6.0 LS…) but bigger shocks and more full race. Awesome truck that hauls the mail!
Bryan Benton, who I haven’t seen since the old Cal City DR trips some 10+ years ago, hopped in passenger seat, and @Potter147 got in the back with his camera. We stopped at a really fun downhill whoop section and dropped Potter off for pictures. Must have done 5 or 6 fast passes and the truck was feeling AWESOME. Way more bottoming resistance in the low speed compression stuff, and I was reallyyyy able to push the truck harder and harder. I was having so much fun that I entirely forgot about the tie rod I was supposed to be nursing. I told myself one last pass so I could get back to my wife at camp. Welp, I went a bit faster than before to double into the whoop section and felt my steering get super wonky after landing. I slowly bright the truck to a stop since I figured I bent the tie rod pretty badly. I didn’t want to slam on the brakes for fear of bending it even more.
We used a strap connected to the other truck to try and pull it back to straight-ish, but it simply snapped.
Used my jack handle and assortment of hose clamps and ratchet strap to get me back to camp.
Bryan posing next to our handiwork
Found someone at camp with a Karnage welder and flex cored it back together. A different upstanding citizen hooked me up with a small bit of angle iron to add more strength. Welded together very nicely, and I fully trusted it to get us back home.
Hung out a bit around the camp fire then called it an early night. Got home safely this morning without a hitch.
Time for swing steering next weekend.
Good times!
Anyways, the truck towed GREAT. Super stable at any speed, and the electronic brake controller stopped everything without issue. I think I’d like to add a short air shock that can be removed with some clevis pins so I can get the ride height back while towing.
Loaded up the dogs and wife and we left around 6:30am. A bit later than I wanted, but we were exhausted from the nonstop week. All good. Made good time on the road and the truck hummed along nicely. Pulled up the hills on the 14 with ease at 2000RPM, 200* coolant temp, and 125* trans oil temp (measured in the pan).
Pulled up to camp and got the pop up trailer situated, helped move some stuff for Adam since the wind was blowing it all away, and then I took the wife and dogs to go get some trash. We found a nice pile in College Hills, filled all of our bags, and made our way back.
View attachment 30250
Dropped the trash off, proceeded to win nothing at the raffle (still had a blast), and then found another s10 nerd. We’ve been internet friends for a while, since he also has a crew cab and there are only a small handful of them built. This was the first time I’ve seen his truck, and it is awesome. Similar specs to mine (LT, linked, caged, 6.0 LS…) but bigger shocks and more full race. Awesome truck that hauls the mail!
Bryan Benton, who I haven’t seen since the old Cal City DR trips some 10+ years ago, hopped in passenger seat, and @Potter147 got in the back with his camera. We stopped at a really fun downhill whoop section and dropped Potter off for pictures. Must have done 5 or 6 fast passes and the truck was feeling AWESOME. Way more bottoming resistance in the low speed compression stuff, and I was reallyyyy able to push the truck harder and harder. I was having so much fun that I entirely forgot about the tie rod I was supposed to be nursing. I told myself one last pass so I could get back to my wife at camp. Welp, I went a bit faster than before to double into the whoop section and felt my steering get super wonky after landing. I slowly bright the truck to a stop since I figured I bent the tie rod pretty badly. I didn’t want to slam on the brakes for fear of bending it even more.
We used a strap connected to the other truck to try and pull it back to straight-ish, but it simply snapped.
Used my jack handle and assortment of hose clamps and ratchet strap to get me back to camp.
Bryan posing next to our handiwork
Found someone at camp with a Karnage welder and flex cored it back together. A different upstanding citizen hooked me up with a small bit of angle iron to add more strength. Welded together very nicely, and I fully trusted it to get us back home.
Hung out a bit around the camp fire then called it an early night. Got home safely this morning without a hitch.
Time for swing steering next weekend.
Good times!
