DTC B1402-87: Lost Communication with Front Air Outlet Damper Control Servo Motor LIN Missing Message [11/2023 - ]: Description
The air conditioning harness assembly connects the air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly.
The No. 1 air conditioning radiator damper servo sub-assembly sends damper position information to the air conditioning amplifier assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | DTC Output from | Priority |
|---|---|---|---|---|---|---|
| B1402-87 | Lost Communication with Front Air Outlet Damper Control Servo Motor LIN Missing Message | Diagnosis Condition:
Malfunction:
Detection Time:
|
No. 1 air conditioning radiator damper servo sub-assembly | Memorized | Air Conditioner | B |
DTC DETECTION CONDITION COMBINATION TABLE
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | Ignition switch ON | ◦ | ◦ |
| Malfunction | Error in communication line between air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly | ◦ | - |
| Open in communication line between air conditioning amplifier assembly and No. 1 air conditioning radiator damper servo sub-assembly | - | ◦ | |
| Detection Time | Continuously for 10 seconds or more | Continuously for 10 seconds or more | |
| Trip Count | 1 trip | 1 trip | |
HINT:
If the conditions of either of these patterns are detected, a DTC will be stored.