DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms(Trouble diagnosis content) | DTC detection condition | |
| U0164 | LOST COMM (HVAC) (Lost Communication With HVAC Control Module) | Diagnosis condition | When the ignition switch is ON |
| Signal | CAN communication signal | ||
| Threshold | TCM is unable to receive the CAN communications signal from A/C auto amp. | ||
| Diagnosis delay time | Continuously for 2 seconds or more | ||
POSSIBLE CAUSE
- AWD control unit
- Harness or connector (CAN communication line is open or shorted)
FAIL-SAFE
Not changed from normal driving