Possible Causes
ATTEMPT TO COMMUNICATE WITH THE PCM AND THE BCM
CHECK FOR HVAC RELATED DTCS IN THE PCM AND THE BCM
MONITOR THE DRBIII® FOR HVAC DTCS
CHECK FOR HVAC RELATED DTCS IN THE PCM
MANUAL A/C SYSTEM TEST
ATTEMPT TO COMMUNICATE WITH THE PCM AND THE BCM
CHECK FOR HVAC RELATED DTCS IN THE PCM AND THE BCM
MONITOR THE DRBIII® FOR HVAC DTCS
CHECK FOR HVAC RELATED DTCS IN THE PCM
MANUAL A/C SYSTEM TEST