Removing A/C from a 730 vehicle

[Squash]

Also the defrost switch might have controls for the A/C compressor.  I would just remove circuit
59 from the ECM connector and let it be.

Squash

--- timsiford at hushmail.com wrote:
> Short: I removed the A/C from my car.  Any special work needed to BIN?  
> I really don't think so but I want to confirm.
> 
> Long: I removed the condenser, accumulator, and A/C lines but left the wiring 
> harness and dashboard control intact.  The 730 has one input for A/C information 
> (BC9, Dk Green Wire, Circuit #59).  This wire runs to ....
> 
> 1) the compressor clutch (off to ground)
> 2) then to the A/C high pressure switch 
> 3) then to the Pressure cyling swtich
> 4) then to the A/C control switch
> 5) Fuse
> 6) Ignition
> 
> Do all 730 wiring harnesses contain Circuit #59 (even the 1LE without A/C)? 
>  I know there aren't separate BINs for A/C and non A/C cars.  The BIN works 
> with both cars.
> 
> Furthermore, Changes to the BIN, IMO don't seem to be necessary since the 
> circuit is never really closed until the A/C control switch (dash switch) 
> is in the 'on' position.   1LE cars don't have the A/C control switch and 
> can never close the circuit (if they do get circuit #59 in their wiring 
> harness?).  Correct?  I am asking because there is A LOT of code in the 
> ANHT_HAC that is dependent on A/C clutch on/off and A/C pressure ... I just 
> want to be -sure-.  
> 
> Next question ... Diacom reports A/C Clutch status and A/C Request status. 
>  How can it report 2 values when there is only one ECM input?  My guess 
> is that both parameters will always read the same.  True?  But, I looked 
> at the HAC and even though it refers to A/C Clutch almost all of the time 
> there are a couple of references to A/C head pressure.  
> 
> Tim


=====
Trains, Trucks, and EFI at http://www.trailrunners4x4.org/users/realsquash

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