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12-13-2014, 08:46 AM
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#1 |
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Registered User
Join Date: May 2014
Location: Rocklin, California
Posts: 12
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ALDL 160 baud datastream on 86 C10
Hi,
Has anyone ever gotten serial data from 86 Chevy C10 via the ALDL connector? Just bought a OTC monitor from Ebay (great deal) and hooked it up but comes back with "no data". After some investigation, looked at the ALDL connector under the dash. I only have ping A,B,C,D and F. Nothing in "E". According to other documentation, E provides the 160 baud serial data stream and "M" the 8132 datatstream (if present). Bottom row of connector is all empty, and "E" is also not there. Could it be that 86 C10 (California version) doesn't provide any of that data (no serial datastream)? |
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12-13-2014, 09:22 AM
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#2 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: ALDL 160 baud datastream on 86 C10
To the best of my knowledge, the 86 truck only had spark and mixture control. There is a little box under the dash for that, but I don't think its really a computer. It does not have a serial data stream output.
__________________
Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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12-13-2014, 01:16 PM
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#3 |
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Registered User
Join Date: May 2014
Location: Rocklin, California
Posts: 12
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Re: ALDL 160 baud datastream on 86 C10
From all I read, it has an ECM that controls M/C solenoid etc. I also have a fairly large box mounted above glove compartment. Could it be that it has an ECM, just no serial data stream? I can retrieve error codes by shorting pin A and B, but only the "check engine light" flashes errror code. Wondering what pin C,D and F are used for.
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12-13-2014, 01:53 PM
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#4 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: ALDL 160 baud datastream on 86 C10
That sounds right to me as far as what the box is and what it does. You may be able to google search an image of the 1986 aldl to tell you what it does. It would also be in the 86 factory service manual, if you can find one.
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Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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12-13-2014, 06:35 PM
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#5 |
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Gentleman Jim Driver
Join Date: Nov 2002
Location: Poulsbo, WA
Posts: 1,550
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Re: ALDL 160 baud datastream on 86 C10
Service manual...
If you can find one? http://67-72chevytrucks.com/vboard/s...d.php?t=545416 http://www.mediafire.com/download/ma...ice_Manual.pdf
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Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed |
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12-13-2014, 06:41 PM
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#6 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: ALDL 160 baud datastream on 86 C10
Looks like that ought to do it, I didn't know those were one here!
__________________
Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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