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ECM Pin Diagram 1995 and 1996 - 5.2L

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ECM Pin Diagram 1995 and 1996 - 5.2L

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Old 05-17-2019, 11:46 PM
WolfStar
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Default ECM Pin Diagram 1995 and 1996 - 5.2L

Hello,

Does anyone have the pin diagrams for the plugs to the engine control module (ECM) for both the 1995 and 1996 dakotas with the 5.2L engine?

Thanks!
 
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Old 05-18-2019, 01:45 AM
RalphP
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Amazingly enough, both are in the FAQ.

Or, more accurately, both the 1995 and the 1996 Factory Service Manuals.

Go to the sticky for the FAQ, go about 40% of the way down, and both of the links will take you to a Google Drive file; download both, and search for the pinout in Section 8W.

Note: They have both the ECU and the connector pinouts. Make sure you're using the proper version when repinning.

RwP
 
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Old 05-18-2019, 04:01 PM
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Originally Posted by RalphP View Post
Amazingly enough, both are in the FAQ.

Or, more accurately, both the 1995 and the 1996 Factory Service Manuals.

Go to the sticky for the FAQ, go about 40% of the way down, and both of the links will take you to a Google Drive file; download both, and search for the pinout in Section 8W.

Note: They have both the ECU and the connector pinouts. Make sure you're using the proper version when repinning.

RwP
Hey thanks a lot. I found it and did a pin diagram comparison.

The pins on the 96 ECM that don't have any 95 counterpart are attached.

Anyone know what to do with these signals?


 
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Old 05-18-2019, 04:08 PM
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Originally Posted by WolfStar View Post
Hey thanks a lot. I found it and did a pin diagram comparison.

The pins on the 96 ECM that don't have any 95 counterpart are attached.

Anyone know what to do with these signals?

Am I understanding the nomenclature correctly below?

For example D2 18WT/BK

D2 = circuit D2
18 = wire gauge (18 gauge wire)
WT/BK = insulation color WT = white / BK = black. So the wire would have white and black stripes.

If the above is correct, some circuits for the 96 wiring use a wire-size up from the 95. For example, some wires are 20 gauge on the 95 and then become 18 gauge on the 96 (so they are slightly larger on the 96). The majority are 20 gauge to 18 gauge. Worst case are two ground wires that go from 16 (95) to 14 (96).

If I keep the smaller 95 wiring size is this likely to be an issue?
 
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Old 05-18-2019, 06:51 PM
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Your interpretation is correct. Where is connector "A" though? Lots of stuff missing there....

The 96 does a lot more with the electrical system, so, the smaller ground wires may indeed become an issue.... They will be carrying more current, so, will likely get warm, and may cause interesting electrical related gremlins.
 
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Old 05-18-2019, 11:58 PM
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Originally Posted by HeyYou View Post
Your interpretation is correct. Where is connector "A" though? Lots of stuff missing there....

The 96 does a lot more with the electrical system, so, the smaller ground wires may indeed become an issue.... They will be carrying more current, so, will likely get warm, and may cause interesting electrical related gremlins.
Those are just the pins on the in 95 ECM connector that don't appear on the 96 ECM. You're right the pins for the oxygen sensor on the A connector are missing from the photo I attached.

Here's the full list in an excel.

I'd like to know whether anyone can tell me how I can manage the signals that the 96 ECM are looking for but aren't on the 95.
 
Attached Files
File Type: xlsx
95_to_96_ECM_Pin_Mapping.xlsx (126.9 KB, 3 views)

Last edited by WolfStar; 05-19-2019 at 12:01 AM.
  #7  
Old 05-19-2019, 07:50 AM
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Install a newer trans? Or, use programming to run the engine for a manual trans truck, and get one of the kits to retrofit the 46RH into a vehicle that never came with one. It's a couple pressure switches.
 
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Old 05-19-2019, 12:41 PM
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Originally Posted by HeyYou View Post
Install a newer trans? Or, use programming to run the engine for a manual trans truck, and get one of the kits to retrofit the 46RH into a vehicle that never came with one. It's a couple pressure switches.
Do you have any examples or websites with the hardware?
 
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Old 05-19-2019, 04:02 PM
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You mean like https://transmissioncenter.net/shop/...iring-diagram/ ?

I'd let the CEL run for simple tests for no downstream O2; but add it if you keep the 96 ECU.

The cruise wiring is different; I haven't dug into that part.

The CCD bus lines go to the OBDII port IIRC ... *goes to check* Yep, see page 8W-11 . You can ignore that now; I'd wire an OBDII connector to the adapter for now, so you can monitor what's going on (even if it's just under the hood, not wired into the cab.)

Battery temperature sensor is not actually required; that can be ignored, unless it keeps tossing battery temp cels.

The rest, I dunno.

RwP
 

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