Toyota Corolla Cross: Lost Communication with Front Control Rear Air Outlet Damper Control Servo Motor LIN Missing Message (B13AA87)
DESCRIPTION
The air conditioning harness assembly connects the air conditioning amplifier assembly and No. 2 air conditioning radiator damper servo sub-assembly.
The No. 2 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 |
|---|---|---|---|---|
| B13AA87 |
Lost Communication with Front Control Rear Air Outlet Damper Control Servo Motor LIN Missing Message |
Diagnosis Condition:
Malfunction:
Detection Time:
| No. 2 air conditioning radiator damper servo sub-assembly |
Memorized |
|
Vehicle Condition | |||
|---|---|---|---|
|
Pattern 1 | Pattern 2 | ||
|
Diagnosis Condition | Ignition switch ON |
○ | ○ |
|
Malfunction | Error in communication line between air conditioning amplifier assembly and No. 2 air conditioning radiator damper servo sub-assembly |
○ | - |
|
Open in communication line between air conditioning amplifier assembly and No. 2 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.
WIRING DIAGRAM
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PROCEDURE
| 1. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Air Conditioner > Trouble Codes|
Result | Proceed to |
|---|---|
|
B142A88 is output | A |
|
B142A88 is not output |
B |
| A |
.gif) | GO TO DTC B142A88 |
| B |
| REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY |
READ NEXT:
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DESCRIPTION The No. 2 air conditioning radiator damper servo sub-assembly sends pulse signals to inform the air conditioning amplifier assembly of the damper position.
The air conditioning amplifier
Lost Communication with Front Air Outlet Damper Control Servo Motor LIN Missing Message (B140287)
DESCRIPTION The air conditioning harness assembly connects the air conditioning amplifier assembly and the No. 1 air conditioning radiator damper servo sub-assembly.
The No. 1 air conditioning radia
Front Air Outlet Damper Control Servo Motor Actuator Stuck Off (B14037F)
DESCRIPTION The No. 1 air conditioning radiator damper servo sub-assembly sends pulse signals to inform the air conditioning amplifier assembly of the damper position.
The air conditioning amplifier
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VEHICLE CONTROL HISTORY (RoB)
VEHICLE CONTROL HISTORY (RoB)
DESCRIPTION
Vehicle Control History (RoB) is a function that captures and stores
ECU data when triggered by specific vehicle behavior.
It may be possible to determine the cause of the malfunction by checking
the vehicle history information and freeze fra
ECM Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
ECM Communication Stop Mode
Communication stop for "ECM (Engine)" is indicated on the "Communication
Bus Check" screen of the GTS.
Click here
ECM
