- Rear air mix damper control servo motor
- Harness or connector between rear air mix damper control servo motor and rear A/C amplifier
- Rear A/C amplifier
| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM0000018NF004X |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM: 47; Rear Air Mix Damper Control Servo Motor Circuit; 2007 MY LX470 [08/2006 - ] | ||
|
DTC |
47 |
Rear Air Mix Damper Control Servo Motor Circuit |
DESCRIPTION
The rear air mix damper control servo motor is controlled by the A/C amplifier and moves the air mix damper to the desired position.
|
DTC No. |
Detection Item |
Trouble Area |
|---|---|---|
|
47 |
Air mix damper position sensor value does not change even if A/C control assembly operates air mix damper control servo motor |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
PERFORM ACTUATOR CHECK |
(a) Warm up the engine.
(b)
Set the actuator check mode
![2007 MY LX470 [08/2006 - ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: ACTUATOR CHECK](../../../../stylegraphics/info.gif "2007 MY LX470 [08/2006 - ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: ACTUATOR CHECK")
.
(c) Press the DEF switch and change it to step operation.
(d) Press the DEF switch and check the operation of the air mix damper and the condition of the blower.
|
Display Code |
Air Mix Damper |
Condition |
|---|---|---|
|
0 to 2 |
0% (Fully closed) |
Cool air comes out |
|
3 to 4 |
50% |
Cool / Warm |
|
5 to 7 |
100% (Full opened) |
Warm air comes out |
| OK |
|
|
|
2. |
CHECK REAR AIR MIX DAMPER CONTROL SERVO MOTOR |
|
(a) Remove the rear air mix servo motor. (b) Connect the positive (+) lead terminal 1(MHOT) and negative (-) lead to terminal 2 (MCOOL), and check the rear air mix damper control servo motor. OK: The lever turns smoothly to warm side. (c) Connect the positive (+) lead to terminal 2 (MCOOL) and negative (-) lead to terminal 1 (MHOT), and check the rear air mix damper control servo motor. OK: The lever turns smoothly to cool side. |
|
| NG |
|
|
|
3. |
CHECK WIRE HARNESS (REAR AIR MIX DAMPER CONTROL SERVO MOTOR - REAR AIR CONDITIONING AMPLIFIER) |
| NG |
|
| OK |
|
|
|