OBD connections?

53ryder

53ryder

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Is know this is a little outside the bounds of this forum but I figured some of you would know the answer. I asked this question over on K Car Club Forum but no response. May go look at a 1987 Dodge Aries (K body platform). Would it have a connection for a OBD code reader? Yes or no? Just wondering.


Glenn
 
slant6billy

slant6billy

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The diagnostic port on the driver inner fender is only voltage test points. I think it appeared in 78 and later MJFR cars.
IMG_3184.JPG
 
MoparDan

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K-cars have flash codes, what you do is you turn the key on and off three times (if I remember correctly) and count how many times the Power Loss light flashes and it tells you codes, it always ends with code 55 (five flashes then five more) you should be able to find the codes online pretty easily
 
Opticon77

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I think 87 Ks had the logic module in the passenger kick panel like my turbo Omni. Not sure where they hid the OBD connector in 87 but 91 it was a square looking covered thing laying on an inner fender looking like this...

s-l300.jpg



If you know someone with an old OTC scanner and the correct cartridge you can get some real data out of it (beyond trouble codes) unlike our old FMJ cars.

7244d1116438427-otc-4000e-sale-trade-scanner.jpg


And there's one other sweet piece of antique troubleshooting equipment that's useful if you can get your hands on it...
  • A special factory tool, a little box with two 8-segment LEDs on it and a slide switch and a push button called the C-4805 Diagnostic Read-Out Tool. The really cool thing that the 4805 does is ATM: Actuator Test Mode. Push that one button on the C-4805 and watch the display increment from "01" to "11". Depending on which of the eleven codes you choose, the system will now:
    • 01 - Spark Activation - Once every 2 seconds
    • 02 - Injector Activation - Once every 2 seconds
    • 03 - AIS Activation - On pulse open/one pulse closed every 4 seconds
    • 04 - Radiator Fan Activation - One pulse every 2 seconds
    • 05 - A/C Cutout Relay Activation - One pulse every 2 seconds
    • 06 - ASD (Automatic Shut Down) Relay Activation - One toggle every 2 seconds
    • 07 - Purge Solenoid Activation - One toggle every 2 seconds
    • 08 - EGR Solenoid Activation - One toggle every 2 seconds
    • 09 - Wastegate Solenoid Activation - One toggle every 2 seconds
    • 10 - Barometric Read Solenoid - One toggle every 2 seconds
    • 11 - Alternator Full Field Activation - One toggle every 2 seconds
 
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Aspen500

Aspen500

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Oldiron440 said:
OBD2 was 1996 and later.
Click to expand...

There were a handful of OBD-II cars in 1994. The V-8 T-Bird was OBDII while the V-6 T-Bird was still OBDI (a.k.a. EEC-IV) but had an OBDII data link connector that did absolutely nothing. The V-8 still had an EEC-IV connector under the hood which did,,,,,,,,,,,,,,absolutely nothing. Ford's......................Yeah I know, useless trivia:rolleyes:
 
Opticon77

Opticon77

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A standardized diagnostic language (ODB2) became a California Air Resources Board requirement in 1994 and a US federal requirement in 1996. Some manufacturers went all in and others made specific Cali models until 96. Everything before that, later referred to loosely as OBD1, was a non-standardized mix of manufacturer service strategies and CARB requirements. Which is why the OTC OBD1 scanners need specific cartridges and connector adapters for different manufacturers and years.

The drive to standardize was driven specifically by California's desire to widely implement "emissions testing"... the greatest irony being that it is actually much harder to cheat an OBD1 dyno sniffer test than OBD2 software monitors.
 
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Aspen500

Aspen500

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I remember well the era of "OBDI". Every make with a different connector, every make with a different protocol, some had data display capabilities, others didn't, and the DLC could be anywhere in the car, under the hood, under the dashm behind the ashtray, in the center console or even in the trunk.............There were even different connectors and systems used on the SAME make depending on which engine it had or what model it was. Don't even get me started on the early systems like Ford's EEC-I, EEC-II and the ultimate in frustration, EEC-III with the dual level distributor and VV carb..................It pretty much sucked.:(
 
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