The A/C Control Module sets DTC B1687 if engine temperature sensor signal has not been received through the CAN signal.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Check CAN signal | 1. Poor contact in harness 2. CAN communication 3. Faulty engine coolant temperature sensor(ECTS) |
Enable Conditions |
•
Ignition "ON" | |
Threshold value |
•
No receiving CAN signal for 1.5 seconds or Receiving Error value | |
Failsafe |
•
Regarded it as -2℃(28.4℉) |
