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International Automotive Technicians Network
1991 Chevrolet Corvette 5.7L AC Programmer
Posted to GM HVAC on 4/11/2000 1 Reply

With Snap-On Scanner installed and reading data, there is no command signal for AC, although AC power is turned on. The ground signal from pin #C6 (gray/red wire)is coming out of AC programmer to ECM. If I ground this wire, AC system turns on, scanner show...

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  Related Documents & Media  1991 Chevrolet Corvette

 
Message Closed

car Vehicle Data

1991 Chevrolet Corvette

VIN 1G1YY2385M
Engine5.7 L / 8 cyl
AffectedA/C Programmer
ConditionsNo Power to A/C Clutch.
Misc.N/A
Message Closed

car Vehicle Data

1991 Chevrolet Corvette

VIN 1G1YY2385M
Engine5.7 L / 8 cyl
AffectedA/C Programmer
ConditionsNo Power to A/C Clutch.
Misc.N/A