Infiniti G35 (V35). Manual — part 100
TROUBLE DIAGNOSIS
ATC-71
C
D
E
F
G
H
I
K
L
M
A
B
ATC
Air Mix Door Motor Circuit
NJS0003G
SYMPTOM
●
Discharge air temperature does not change.
●
Air mix door motor does not operate normally.
INSPECTION FLOW
*1
ATC-52, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 1.
*2
ATC-100, "Ambient Sensor Circuit"
*3
ATC-103, "In-vehicle Sensor Circuit"
*4
ATC-106, "Sunload Sensor Circuit"
*5
ATC-73, "Air Mix Door Motor PBR
Circuit"
*6
ATC-52, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 14.
*7
*8
ATC-71, "Air Mix Door Motor Circuit"
*9
*10
*11
ATC-109, "Intake Sensor Circuit"
*12
ATC-52, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 5 to
7.
RJIA3505E
ATC-72
TROUBLE DIAGNOSIS
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are:
●
Display and A/C auto amp.
●
Air mix door motor (LCU)
●
A/C LAN system (PBR built-in mode door motor, air mix door motor and intake door motor)
●
In-vehicle sensor
●
Ambient sensor
●
Sunload sensor
●
Intake sensor
System Operation
The display and A/C auto amp. receives data from each of the sensors. The display and A/C auto amp. sends
air mix door, mode door and intake door opening angle data to the air mix door motor LCUs, mode door motor
LCU and intake door motor LCU.
The air mix door motors, mode door motor and intake door motor read their respective signals according to the
address signal. Opening angle indication signals received from the display and A/C auto amp. and each of the
motor position sensors are compared by the LCUs in each door motor with the existing decision and opening
angles. Subsequently, HOT/COLD, DEF/VENT and FRE/REC operation is selected. The new selection data
are returned to the display and A/C auto amp.
Air Mix Door Control Specification
RJIA1641E
RJIA1642E
TROUBLE DIAGNOSIS
ATC-73
C
D
E
F
G
H
I
K
L
M
A
B
ATC
COMPONENT DESCRIPTION
Air Mix Door Motor
The air mix door motors are attached to the heater & cooling unit
assembly. It rotates so that the air mix door is opened or closed to a
position set by the display and A/C auto amp. Motor rotation is then
sent conveyed through a shaft and the air mix door position feed-
back is then sent to the display and A/C auto amp. by PBR built-in air
mix door motor.
DIAGNOSIS PROCEDURE FOR AIR MIX DOOR
SYMPTOM: Discharge air temperature does not change.
Perform diagnosis procedure. Refer to
ATC-64, "DIAGNOSIS PROCEDURE FOR LAN CIRCUIT"
.
Air Mix Door Motor PBR Circuit
NJS0003H
SYMPTOM
●
Discharge air temperature does not change.
●
PBR circuit is open or shorted.
DIAGNOSIS PROCEDURE FOR AIR MIX DOOR MOTOR PBR
Perform diagnosis procedure. Refer to
ATC-64, "DIAGNOSIS PROCEDURE FOR LAN CIRCUIT"
.
RJIA0893E
RJIA0894E
ATC-74
TROUBLE DIAGNOSIS
Intake Door Motor Circuit
NJS0003I
SYMPTOM
●
Intake door does not change.
●
Intake door motor does not operate normally.
INSPECTION FLOW
*1
ATC-52, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 1.
*2
ATC-100, "Ambient Sensor Circuit"
*3
ATC-103, "In-vehicle Sensor Circuit"
*4
ATC-106, "Sunload Sensor Circuit"
*5
ATC-73, "Air Mix Door Motor PBR
Circuit"
*6
ATC-52, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 14.
*7
*8
*9
*10
ATC-52, "FUNCTION CONFIRMA-
TION PROCEDURE"
, see No. 5 to 7.
*11
*12
ATC-109, "Intake Sensor Circuit"
SJIA1844E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст