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Smoke under the dash

Tiny
JACOBANDNICKOLAS
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You called it a lock sensor. In all honesty, I never heard of a lock sensor for the AC. Could it be a pressure sensor?

The 10 amp fuse is for the AC switch. Power is supplied to the compressor clutch via the AC amplifier. See pic 1.

Joe
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Sunday, February 21st, 2021 AT 7:55 PM
Tiny
BLESSING EWOBOR
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Lol,
If that is the fuse you were talking about, I have checked it, it seems to be okay.
If you check the diagram, three wires are going to the compressor, one to power the compressor clutch and the other two wires for the lock sensor. Check the diagram.
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Sunday, February 21st, 2021 AT 8:22 PM
Tiny
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Those two wires that you traced at the compressor, that are white/blue and white/red are the wires that I am talking about.
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Sunday, February 21st, 2021 AT 8:27 PM
Tiny
JACOBANDNICKOLAS
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Hi,

Those wires go to the AC amplifier. I indicated where they go below. As far as the fuse, I said it should have blown. I don't know why it didn't.
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Monday, February 22nd, 2021 AT 6:10 PM
Tiny
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Okay, thank you sir.
I will get back to you sir.
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Tuesday, February 23rd, 2021 AT 3:51 PM
Tiny
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Sir,

For the pressure switch how would I be able to bypass or check if it is faulty since it has four wires on it?
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Tuesday, February 23rd, 2021 AT 4:22 PM
Tiny
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Hi,

You could run a jumper at the connector. However, check the pressure before doing that. Let's make sure it isn't already too high.

Joe
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Tuesday, February 23rd, 2021 AT 5:15 PM
Tiny
BLESSING EWOBOR
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The pressure is okay. Using the jumper wire is not the problem but the wires that are to be jumped, most of the wire colors in the diagram is not the same as the ones in the vehicle. I just want to check if the pressure switch is good.
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Tuesday, February 23rd, 2021 AT 5:42 PM
Tiny
JACOBANDNICKOLAS
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Hi,

If the wire colors are different, I'm not sure which to tell you to jump. I have the correct year make and model, so the colors should match.
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Wednesday, February 24th, 2021 AT 5:22 PM
Tiny
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Hi, as you said earlier that the fuse supposed to blown off before the wire start to burn. I checked the fuse at the instrument panel (10A heater fuse, looking at the top of the fuse, it is 10 amp fuse but it has wrapped with many wires, so I think that is why the fuse didn't blow off).
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Wednesday, February 24th, 2021 AT 7:09 PM
Tiny
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As I said earlier that two wires were not connected that goes to the compressor, I removed the alternator so that I can access the compressor properly but guess what! There I saw the real cause of the burnt wire, the black/white wire that supposed to power the compressor was naked somewhere close to the compressor and it do short the circuit to ground. After rectifying these everything works normal.

Thank you very much. I have disturbed you alot. You are a darling.
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Wednesday, February 24th, 2021 AT 7:27 PM
Tiny
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Sir, from the diagram the fuse (gauge fuse) supposed to be (heater fuse) because when I removed the gauge fuse all light on the instrument cluster went off and there was voltage at the compressor relay not until I removed the heater fuse (instrument panel).
Thank you
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Wednesday, February 24th, 2021 AT 8:17 PM
Tiny
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Hi,

I'm not sure why you would lose power to the compressor when removing the instrument panel or heater fuse. I have to ask, are you located in the US? If not, I suspect there is a difference in the schematics for different locations. That's the only thing that makes sense.

Let me know.

Joe
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Thursday, February 25th, 2021 AT 5:49 PM
Tiny
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It is heater fuse that is among the fuses under the instrument panel not instrument panel fuse.
I am not located in US.
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Thursday, February 25th, 2021 AT 8:49 PM
Tiny
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The schematic may show different colors. That is what it sounds like you are dealing with. Are you able to use the schematic to follow the wires? Not being there is going to make it nearly impossible for me.

Let me know.
Joe
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Friday, February 26th, 2021 AT 6:21 PM
Tiny
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I used the schematic to follow the wires but I didn't use the wire's color.
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Friday, February 26th, 2021 AT 7:33 PM
Tiny
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Hi,

It sounds like a problem within the fuse box. Is there any evidence of overheating, damaged wires, or connectors? That is the only thing that would make sense.

Let me know.
Joe
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Friday, February 26th, 2021 AT 7:34 PM

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