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Old Feb 16, 2006 | 06:35 PM
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79_250RangerLariat's Avatar
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apcm questions

I bought a NIB AIC (APCM) control off Ebay, it works great on the manual mode, but it won't work in automatic. I'm following all of the instructions in fords book but it won't kick up automatically.
Also I don't have any read out of the rpm's, voltage, etc. Just a big ole zero. Any ideas?

1997 250 4wd, auto, 108,000 mi
 

Last edited by 79_250RangerLariat; Feb 16, 2006 at 07:04 PM.
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Old Feb 16, 2006 | 09:53 PM
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This sounds familar....I can't find any threads to support my hypothosis, but I think that the manual mode is all you get when installing the APCM in the older trucks.

I know a few guys on here run them....so hopefully you'll get the real story soon.
 
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Old Feb 17, 2006 | 05:58 PM
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A friend of mine put on in his 96, aic unit has the same build date as mine, and everything works. He put it in his 97 and it works there too. I haven't been able to catch up with him to put my aic in his truck.
 
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Old Feb 18, 2006 | 03:11 PM
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Post your relsults....

Are all your fuses good? Maybe some part of your wiring isn't powered like it should be.
 
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Old Feb 18, 2006 | 04:44 PM
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Which fuse block should I look in? I checked most of them recently while diagnosing a trailer brake problem and they were all good. Nothing else in the truck seems to be acting up.
 
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Old Feb 18, 2006 | 04:51 PM
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Probably would be one of the fuses in the cab if one were bad.
 
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Old Feb 19, 2006 | 11:48 AM
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I checked all the fuses this morning and they are all OK. The one looks like it was stepped on before it was put in, but the fuseable link is still intact.
 
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