Toyota Corolla Cross: Front Control Rear Air Outlet Damper Control Servo Motor Actuator Stuck Off (B13AB7F)
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 assembly activates the motor (normal or reverse) based on these signals to move the No. 2 air conditioning radiator damper servo sub-assembly to the appropriate position, which controls the air outlet switching.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Memory |
|---|---|---|---|---|
| B13AB7F |
Front Control Rear Air Outlet Damper Control Servo Motor Actuator Stuck Off |
Diagnosis Condition:
Malfunction:
Detection Time:
|
| Memorized |
|
Vehicle Condition | |||
|---|---|---|---|
|
Pattern 1 | Pattern 2 | ||
|
Diagnosis Condition | No. 2 air conditioning radiator damper servo sub-assembly operating |
○ | ○ |
|
Malfunction | Damper servo operation request signals are output but the damper position sensor value does not change. |
○ | - |
|
Damper servo operation request signals are output but the damper position sensor value is abnormal. |
- | ○ | |
|
Detection Time | Continuously for 30 seconds or more |
Continuously for 30 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
CAUTION / NOTICE / HINT
NOTICE:
- This DTC is also output for the damper link, damper lock, etc. Before performing inspection, perform servomotor initialization and check that there are no mechanical malfunctions.
Click here
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- This DTC is also output when servomotor initialization has failed. When servomotor initialization has failed, repair any malfunctions and perform servomotor initialization again.
Click here
PROCEDURE
|
1. | PERFORM ACTIVE TEST USING GTS |
(a) Perform the Active Test according to the display on the GTS.
Body Electrical > Air Conditioner > Active Test|
Tester Display | Measurement Item |
Control Range | Diagnostic Note |
|---|---|---|---|
|
Fr Control Rear Air Outlet Damper Servo Motor |
This test activates the rear air outlet damper control servo motor. (No. 2 air conditioning radiator damper servo sub-assembly (rear mode)) |
128: Min 384: Max |
Operate with ignition switch ON. |
|
Active Test Display |
|---|
|
Fr Control Rear Air Outlet Damper Servo Motor |
|
Data List Display |
|---|
|
Front Control Rear Air Outlet Damper Control Servo Motor Actual Pulse |
OK:
No. 2 air conditioning radiator damper servo sub-assembly is operated.
| NG | .gif) | REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY |
|
.gif)
| 2. |
CHECK NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (INSTALLATION CONDITION) |
(a) Check that the No. 2 air conditioning radiator damper servo sub-assembly is installed correctly.
Click here
OK:
The No. 2 air conditioning radiator damper servo sub-assembly is installed correctly.
| NG | | REINSTALL NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY |
|
| 3. |
CHECK NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (MOTOR, LINK, DAMPER) |
(a) Check for a wire harness caught between the links of the motors and dampers.
OK:
No wire harnesses are caught between the links of the motors and dampers.
| NG | | REMOVE PINCHED WIRE HARNESS |
|
| 4. |
CHECK AIR CONDITIONING RADIATOR ASSEMBLY (DAMPER) |
(a) Remove the No. 2 air conditioning radiator damper servo sub-assembly.
Click here
(b) Operate the dampers by hand.
OK:
The dampers are easily operated by hand.
| OK | | REPLACE AIR CONDITIONING HARNESS ASSEMBLY |
| NG | | REPAIR OR REPLACE AIR CONDITIONING RADIATOR ASSEMBLY |
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DTC No.
Detection Item
DTC Detection Condition
Trouble Area
MIL
Memory
No
