Re: TCS delete-wiring AC compressor control - Saab 9000 Bulletin Board - Saabnet.com
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Re: TCS delete-wiring AC compressor control
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Posted by Name Left Blank (more from Name Left Blank) on Tue, 10 Nov 2015 08:51:34 Share Post by Email
In Reply to: TCS delete-wiring AC compressor control, weston, Tue, 10 Nov 2015 07:33:50
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What was ETS Pin 38 red/green. This is the Ground side of the A/C Relay.
It would have had a splice at the ETS pin, and continue on outside to the big 70-pin split at the false firewall, Pin 50. On the ECU side of the split, it is Green and white, to ECU pin 59.

This needs to move at the 70 pin split, on the Chassis side, from terminal 50 to 49.

The wire between pin 50 and the ECU remains as it was.

What was ETS Pin 37 green/white. This is the A/C enable signal coming in from the Anti-frost switch in the evaporator housing, the H/L pressure switches in the condenser...This is the one that needs to be connected to pin 50 at the false-firewall connector.



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In other words, A/C relay terminal 85, connects to ECU terminal 54, should be green/red the whole way. ECU pin 59 connects to the anti-frost thermostat, should be green/white the whole way.

I'm not sure what you've got thats Blue at the ECU...the blue wires should be:
ECU Pin 2: half of the turbo solenoid
ECU Pin 58: RPM signal
ECU Pin 11: one of the ignition triggers


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