Oh BOy Lighting Problems
Tuned
Joined: Jul 2010
Posts: 408
Likes: 2
From: Canada
Okay cool. To answer your previous question about the APIM - yes if it was bad it has about 20 different codes it could be throwing. Honestly, I think more and more that you are right as to what caused the original problem (unplugging an plugging with battery on) with the BCM.
I think the tech blamed nav unit since they can't figure out what actually caused it. I don't believe the nav unit went all wacko when they plugged it in since there were no ACM codes thrown.
In anycase, the final diagnosis of the harness will confirm all this.
When you do get your truck back, check the truck harness connector C240A first, specifically if you have any wired pins at location 2, 3 and 4. If you do, note the wire color and trace them through the intermediary harness and see where they wind up.
Also check pin 13 on the truck harness and see if it actually is grounded to the truck chassis properly.
Finally, writedown the color of each wire and pin location for the truck side harness connector of C240A and C240C.
I think the tech blamed nav unit since they can't figure out what actually caused it. I don't believe the nav unit went all wacko when they plugged it in since there were no ACM codes thrown.
In anycase, the final diagnosis of the harness will confirm all this.
When you do get your truck back, check the truck harness connector C240A first, specifically if you have any wired pins at location 2, 3 and 4. If you do, note the wire color and trace them through the intermediary harness and see where they wind up.
Also check pin 13 on the truck harness and see if it actually is grounded to the truck chassis properly.
Finally, writedown the color of each wire and pin location for the truck side harness connector of C240A and C240C.
Thread Starter
|
Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
Okay cool. To answer your previous question about the APIM - yes if it was bad it has about 20 different codes it could be throwing. Honestly, I think more and more that you are right as to what caused the original problem (unplugging an plugging with battery on) with the BCM.
I think the tech blamed nav unit since they can't figure out what actually caused it. I don't believe the nav unit went all wacko when they plugged it in since there were no ACM codes thrown.
In anycase, the final diagnosis of the harness will confirm all this.
When you do get your truck back, check the truck harness connector C240A first, specifically if you have any wired pins at location 2, 3 and 4. If you do, note the wire color and trace them through the intermediary harness and see where they wind up.
Also check pin 13 on the truck harness and see if it actually is grounded to the truck chassis properly.
Finally, writedown the color of each wire and pin location for the truck side harness connector of C240A and C240C.
I think the tech blamed nav unit since they can't figure out what actually caused it. I don't believe the nav unit went all wacko when they plugged it in since there were no ACM codes thrown.
In anycase, the final diagnosis of the harness will confirm all this.
When you do get your truck back, check the truck harness connector C240A first, specifically if you have any wired pins at location 2, 3 and 4. If you do, note the wire color and trace them through the intermediary harness and see where they wind up.
Also check pin 13 on the truck harness and see if it actually is grounded to the truck chassis properly.
Finally, writedown the color of each wire and pin location for the truck side harness connector of C240A and C240C.
Thread Starter
|
Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
Second update. Just talked to the tech. He said there was a short in the illumination control in the actual radio. Could this be also from plugging and unplugging the radio and that was just what the situation looked like to him? Also, the headlight switch got burnt up is why the headlights will not shut off. If he unplugs the headlight switch and makes the proper connections to get the BCM to think the light switch is in the off position, then the headlights go off. Now it's going to be Friday morning before the work is done. He said all you need to do is get another radio and your good to go. All the wiring and everything looked good to him. But I'm still convinced the plugging and unPlugging caused it.
Posting Guru
Joined: Oct 2010
Posts: 1,777
Likes: 0
Second update. Just talked to the tech. He said there was a short in the illumination control in the actual radio. Could this be also from plugging and unplugging the radio and that was just what the situation looked like to him? Also, the headlight switch got burnt up is why the headlights will not shut off. If he unplugs the headlight switch and makes the proper connections to get the BCM to think the light switch is in the off position, then the headlights go off. Now it's going to be Friday morning before the work is done. He said all you need to do is get another radio and your good to go. All the wiring and everything looked good to him. But I'm still convinced the plugging and unPlugging caused it.
Working in the electronics industry, my guess is shorting out a circuit is more likely the culprit. Another thing that we see cause issues is ESD (electrostatic discharge). Essentially this is the shock you get when you walk across a carpet in low humidity. We normally see this manifest itself in burned out logic circuits or affecting longetivity of a component. Something took these circuits out.
Anytime I am working on the electronics, I am usually pulling the power and take ESD precautions. If I remember correctly, this was all supposed to be nothing more than adding the Nav, right?
Tuned
Joined: Jul 2010
Posts: 408
Likes: 2
From: Canada
I am totally with Marauder on this one.
Your tech is full of it since the illumination in the radio is independent of the illumination in the rest of the truck. The BCM tells the radio what to set the illumination at then the radio internally makes the adjustment. There is no output from the radio that will short the BCM - its not physically possible.
Now having said that, the radio still might have other issues that are not identified - it seems unlikely but the tech is in full CYA mode by claiming the radio caused the problem. Here is the question - will AER replace the radio since the tech is saying that is what the problem is? (Even though I don't believe this is the cause at least if you could get a new radio, it would presumably put an end to this debate from the tech).
You know what I find even just as likely? The headlight switch was faulty which caused the surge on the illumination line which killed the BCM. That seems as much or more plausible to than the radio causing the problem.
You should ask the tech if the headlight switch was faulty/failing then perhaps it is what killed the BCM - would be easy to test for an internal short between the illumination connector and the switch settings.
Your tech is full of it since the illumination in the radio is independent of the illumination in the rest of the truck. The BCM tells the radio what to set the illumination at then the radio internally makes the adjustment. There is no output from the radio that will short the BCM - its not physically possible.
Now having said that, the radio still might have other issues that are not identified - it seems unlikely but the tech is in full CYA mode by claiming the radio caused the problem. Here is the question - will AER replace the radio since the tech is saying that is what the problem is? (Even though I don't believe this is the cause at least if you could get a new radio, it would presumably put an end to this debate from the tech).
You know what I find even just as likely? The headlight switch was faulty which caused the surge on the illumination line which killed the BCM. That seems as much or more plausible to than the radio causing the problem.
You should ask the tech if the headlight switch was faulty/failing then perhaps it is what killed the BCM - would be easy to test for an internal short between the illumination connector and the switch settings.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Posting Guru
Joined: Oct 2010
Posts: 1,777
Likes: 0
You know what I find even just as likely? The headlight switch was faulty which caused the surge on the illumination line which killed the BCM. That seems as much or more plausible to than the radio causing the problem.
You should ask the tech if the headlight switch was faulty/failing then perhaps it is what killed the BCM - would be easy to test for an internal short between the illumination connector and the switch settings.
You should ask the tech if the headlight switch was faulty/failing then perhaps it is what killed the BCM - would be easy to test for an internal short between the illumination connector and the switch settings.
Thread Starter
|
Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
In reality I should go in there with some serious heat and not have to pay for it, but I just want the truck back so darn bad I'll pay for it. I've been in a Ford Ranger for the past week and lets just say I can't get a quarter of the work done that I did with the 250. On the flip side, its going to be like I have a new truck though when I get it back! I forgot what it was like to be in such a sweet ride. My plan is:
Go get truck tomorrow morning, bring it to the shop here and do some wiring test that RDenis layed out, then disconnect the battery, install the NAV, and then never look back. Thats the plan anyways! When the dealer hands the keys to me I'm going to dance the whole way to my truck.
Kinda like this guy..... Kentucky Superstar
YouTube - John Wall Dougie Intro
Thread Starter
|
Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
Nope they won't do it. SO I have to pick up the truck with a hole in the console. But whatever, I just need the truck
Thread Starter
|
Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
PROJECT ABANDONED
Recieved the truck from the dealer today check the wiring and installed the nav radio back in. Connected the batteries, and go to look at the illumination, not working! So I run and disconnect the batteries quick. SO then I install the old radio back in, everything is working, illumination and everything so I say heck with it. I'm sending the NAV back, if they will take it.
BUT I have some new issues that I can't figure out....
1. The turn signals blink real fast. NOt a bulb out. But when I turn on the hazards everything is fine. Tech said it might be some new Ford programming (Idiot) ANy fixes for this?
2. The voice for the phone or anything is not working. The wiring is all fine, but if im on the phone through the truck I can hear them, but they can't hear me? Any suggestions here?
3.I need a part number for the SDARS and the steering wheel control to replace the one I tossed out, and the SDARS I discarded. Would the missing SDARS cause the voice not to work?
I'm so bummed out, I guess it really was the radio or something in that kit that made the truck mess up. Oh well. After I get these three issues fixed, I'll be tickled pink
Recieved the truck from the dealer today check the wiring and installed the nav radio back in. Connected the batteries, and go to look at the illumination, not working! So I run and disconnect the batteries quick. SO then I install the old radio back in, everything is working, illumination and everything so I say heck with it. I'm sending the NAV back, if they will take it.
BUT I have some new issues that I can't figure out....
1. The turn signals blink real fast. NOt a bulb out. But when I turn on the hazards everything is fine. Tech said it might be some new Ford programming (Idiot) ANy fixes for this?
2. The voice for the phone or anything is not working. The wiring is all fine, but if im on the phone through the truck I can hear them, but they can't hear me? Any suggestions here?
3.I need a part number for the SDARS and the steering wheel control to replace the one I tossed out, and the SDARS I discarded. Would the missing SDARS cause the voice not to work?
I'm so bummed out, I guess it really was the radio or something in that kit that made the truck mess up. Oh well. After I get these three issues fixed, I'll be tickled pink
