Air conditioner control module receives air conditioner refrigerants pressure from ECM via CAN in order to judge how much refrigeratnts pressure is in the line. If the air conditioner pressure is abnormal, it is used for signal not to control the air conditioner compressor.
The Air conditioner Control Module sets DTC B1672 if APT signal has not been received through the CAN signal.
Item
Detecting Condition
DTC Strategy
Check CAN signal
Faulty Air conditioner Pressure Sensor
CAN communication
Enable Conditions
IG KEY ON
Threshold value
No receiving CAN signal for 1.5 seconds or Receiving Error value
Failsafe
Substitued APT value as '0'