DTC B140B-87: Lost Communication with Rear Air Mix Damper Control Servo Motor LIN Missing Message [11/2023 - ]: Description
The No. 2 air conditioning harness assembly connects the air conditioning amplifier assembly and rear air mix damper servo sub-assembly.
The rear air mix 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 |
|---|---|---|---|---|---|---|
| B140B-87 | Lost Communication with Rear Air Mix Damper Control Servo Motor LIN Missing Message | Diagnosis Condition:
Malfunction:
Detection Time:
|
Rear air mix 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 rear air mix damper servo sub-assembly | ◦ | - |
| Open in communication line between air conditioning amplifier assembly and rear air mix 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.