Junk86
Poster
Posts: 74
Reg: 03-15-19
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06-12-23 02:58 PM - Post#2859128
At this time, I have no service engine light or any current going to the ALDL connector.
I have replaced the ECM, did not solve the problem. Fuses are okay. I have current at the cigarette lighter socket, which is where they tell me the current for the ALDL comes from. I've even replaced the bulb and the holder, to no avail.
Any help finding a fix would be very much appreciated.
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Tony1963
BANNED USER
Posts: 2448
Loc: Orlando Florida
Reg: 07-09-18
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06-12-23 03:49 PM - Post#2859130
In response to Junk86
Check under the hood and trace the computer wiring harness back to the computer itself.
| People fear change because it threatens what they know, or what they claim to know. |
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Junk86
Poster
Posts: 74
Reg: 03-15-19
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06-15-23 05:46 PM - Post#2859242
In response to Tony1963
Do you know what color the power wire is for the
ALDFL connector on the 2.8L V6?
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Junk86
Poster
Posts: 74
Reg: 03-15-19
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06-16-23 04:28 PM - Post#2859274
In response to Junk86
I found a diagram on autozone's website that has it listed as a Tan/Black wire leading from the ECM to the ALDL connector.
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Tony1963
BANNED USER
Posts: 2448
Loc: Orlando Florida
Reg: 07-09-18
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06-25-23 05:04 AM - Post#2859554
In response to Junk86
You need to go back and trace power to the ECM. If that is up and running, then the wires to the ALDL is a matter of checking for power and ground.
| People fear change because it threatens what they know, or what they claim to know. |
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Junk86
Poster
Posts: 74
Reg: 03-15-19
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06-25-23 06:53 PM - Post#2859588
In response to Tony1963
I do have power to the ALDL Connector, but no current to the Check Engine Light bulb socket.
Is it possible to lose current if the circuit board is not lying down in the proper position where the bulb goes against it? I tried to correct it, but still no current flowing through that bulb socket. Any idea where the problem lies in reference to this problem?
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Tony1963
BANNED USER
Posts: 2448
Loc: Orlando Florida
Reg: 07-09-18
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06-26-23 12:27 PM - Post#2859600
In response to Junk86
I have seen those printed circuits get to the point that the copper conductive film wears away and you lose the ability to flow current. They used to sell printed circuits if needed.
Remove the cluster and unplug at the main connector at the cluster. Using a wiring diagram, see if you have current coming through the connector. If you do, then the current is being lost in the printed circuit. If no current, go backwards until you find current flowing.
That's the diagnostic process...
| People fear change because it threatens what they know, or what they claim to know. |
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