Ambulance APC problems
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Freshman User
Joined: Mar 2013
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From: Santa Rosa
Ambulance APC problems
Hey guys,
A couple of weeks ago I found a good deal on eBay for the limited function APCM. I didn't get a harness with it but was able to make my own. I've checked everything and I have key power, ground, B+, and B- but for some reason whenever I go to enter a mode the light next to it flashes 3 times and then it bounces back and forth between the two mode buttons 3 times then flashes both 2 times. The power button stays solid the whole time. Only way out of this is to power it down. And I never achieve high idle or charge protect.
Truck:
1997 F250 7.3l
APC:
Ford P/N XC3F-12B640-BB
Date 10/21/02
I can still talk to the computer through the DLC so I know the data bus is still functional.
And yes, all conditions are met... Parking brake (light working, truck in park, and feet off pedals.
Here is a quick video of the problem:
https://plus.google.com/photos/10671...CKqitvrC_ZXrRA
Any help is greatly appreciated!
A couple of weeks ago I found a good deal on eBay for the limited function APCM. I didn't get a harness with it but was able to make my own. I've checked everything and I have key power, ground, B+, and B- but for some reason whenever I go to enter a mode the light next to it flashes 3 times and then it bounces back and forth between the two mode buttons 3 times then flashes both 2 times. The power button stays solid the whole time. Only way out of this is to power it down. And I never achieve high idle or charge protect.
Truck:
1997 F250 7.3l
APC:
Ford P/N XC3F-12B640-BB
Date 10/21/02
I can still talk to the computer through the DLC so I know the data bus is still functional.
And yes, all conditions are met... Parking brake (light working, truck in park, and feet off pedals.
Here is a quick video of the problem:
https://plus.google.com/photos/10671...CKqitvrC_ZXrRA
Any help is greatly appreciated!
Postmaster
Joined: Mar 2004
Posts: 3,897
Likes: 9
See if this helps. It gives pin layout and what is required to make it work. Does the 3rd brake light in your truck work properly?
https://www.fleet.ford.com/truckbbas...pcm_manual.pdf
https://www.fleet.ford.com/truckbbas...pcm_manual.pdf
Thread Starter
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Freshman User
Joined: Mar 2013
Posts: 35
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From: Santa Rosa
Sorry it took so long for me to respond. It is not chipped but is running an EDGE tune. Might be causing the problem but seems rather unlikely. And I have gone over the APCM manual several times and it all checks out. One thing I have found is after doing a KOEO self test I throw a ROM error code. I may need a PCM... Could be causing the problem. Truck runs great though. And the one without the RPM display was only put in ambulances but supposedly works on everything. Its simple and is just meant to be set up and then thrown under a seat. (My plan was just to run charge protect).
Thread Starter
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Freshman User
Joined: Mar 2013
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From: Santa Rosa
Yeah it has all of the information I don't need and none of what I do.
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Senior User
Joined: Feb 2006
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From: Sonoma, CA
Here is a link that actually helped me reprogram mine after I screwed it up trying to use the other info I found.
APCM - Introduction - 1994-1997 Power Stroke FAQ
APCM - Introduction - 1994-1997 Power Stroke FAQ
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Thread Starter
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Freshman User
Joined: Mar 2013
Posts: 35
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From: Santa Rosa
Here is a link that actually helped me reprogram mine after I screwed it up trying to use the other info I found.
APCM - Introduction - 1994-1997 Power Stroke FAQ
APCM - Introduction - 1994-1997 Power Stroke FAQ
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