2000 Chevrolet Venture Repair Question
2000 Chevy Venture
2000 Chevy Venture 6 cyl Front Wheel Drive Automatic 127000 miles
my air conditioning doesnt work clucth will not engage check fuse its ok.will low feon gas cause this.
Powertrain Control Module (PCM) receives an A/C request signal from Body Control Module (BCM) over Class 2 serial data line. When A/C is requested, PCM provides a ground path to A/C clutch relay control circuit. When relay circuit is grounded, A/C clutch relay is energized. The PCM delays grounding relay circuit for .3 seconds. This allows PCM to adjust engine idle RPM for additional load.
The PCM will disengage A/C compressor clutch if one or more of the following conditions occur:
Throttle angle is greater than 90 percent.
A/C head pressure is greater than 440 psi (31 kg/cm2 ) with A/C refrigerant pressure sensor reading greater than 4.27 volts.
A/C head pressure is less than 35 psi (2.5 kg/cm2 ) with A/C refrigerant pressure sensor reading greater than .40 volts.
Ignition voltage is less than 10.5 volts.
Engine speed is greater than 4300 RPM for 5 seconds or at 5400 RPM for any amount of time.
Engine coolant temperature is greater than 255 °F (124 °C).
Intake air temperature is less than 41 °F (5 °C).
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