acdelcotds.com acdelcotds.com Figure 9: 2002 Chevrolet Tahoe wiring diagram shows A/C relay clutch control terminal on powertrain computer. Figure 10: The outside air temperature sensor for HVAC is at right front behind bumper bar. February 2017 7 MACS Service Reportshttp://www.acdelcotds.com http://www.acdelcotds.com