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C105 wires. what are they? where do they go?

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Old 07-04-2019, 11:13 AM
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Car: 90 Formula / T-tops
Engine: 305 TPI
Transmission: MD8
C105 wires. what are they? where do they go?

can anyone point to the section of the manual where the wires for this connector are identified? This is for 305/350 TPI engine. 1990. It appears power/ground, but there are others and not sure where they actually go. seems like the manual has not included this particular wire diagram



Last edited by LiquidBlue; 07-04-2019 at 11:17 AM.
Old 07-04-2019, 12:06 PM
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Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
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Axle/Gears: 3.08/ 3.23
Re: C105 wires. what are they? where do they go?

I think that is the connector for the hvac blower speeds.
Old 07-04-2019, 12:44 PM
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Re: C105 wires. what are they? where do they go?

C105 is where the HVAC harness interfaces with the engine harness. You probably won't find all the wires on one diagram. They'll be shown on whichever diagram they're a part of. For example, you'll have a few under the A/C compressor controls, and a few under the blower schematic, etc. They'll be scattered through the various diagrams because the harness contains wires for more than one system.
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