Air conditioner Control Module detects ambient temperature only when vehicle is driving. To judge wheather vehicle is driving or not, Air conditioner control module receives vehicle speed signal from VDC 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 0.1 seconds or receiving Error value | |
Failsafe |
•
Substitued vehicle speed value as '0' |
