The Air conditioner Control Module detects ambient temperature only when vehicle is driving. The A/C Control Unit receives the vehicle speed signal from the ABS/ESP/ESC through the CAN signal.
The Air conditioner Control Module sets DTC B1686 if vehicle speed signal has not been received through the CAN signal.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check CAN signal | 1. Faulty wheel Speed Sensor 2. CAN communication |
Enable Conditions |
•
IG KEY ON | |
Threshold value |
•
No signal via CAN for 1.5 seconds or receiving Error value | |
Failsafe |
•
Substitued vehicle speed value as '0' |
