Qashqai J11. Heater & Air conditioning Control System — part 16
COMPONENT PARTS
HAC-241
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
C
D
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A
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HAC
N
O
P
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Intake Door Motor
INFOID:0000000010499404
DESCRIPTION
• The step motor system is adopted for intake door motor.
• When a drive signal is input from A/C amp. to door motor, a step motor built into the door motor rotates
according to the drive signal, and then stops at the target door position.
• Rotation of motor is transmitted to intake door by lever, then air inlet is switched.
INTAKE DOOR MOTOR (DRIVER SIDE) DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Blower Motor
INFOID:0000000010499405
• Brush motor, that rotates coil while brush functions as contact
points, is adopted for blower motor.
• Rotation speed changes according to voltage from power transis-
tor.
JZIIA0033GB
JMIIA3565GB
JMIIA3336ZZ
HAC-242
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
COMPONENT PARTS
A/C UNIT ASSEMBLY : Fan Control Amp.
INFOID:0000000010499406
• Fan control amp., that uses MOS field effect transistor, is adopted
for blower motor speed control.
NOTE:
MOS field effect transistor is a transistor for which the gate portion
is composed of a metal electrode on an oxide layer of semiconduc-
tor. Field effect transistor is controlled by voltage, while ordinary
transistor is controlled by current. Electrode of field effect transistor
is called source, drain, or gate, while electrode of ordinary transis-
tor is called emitter, collector, or base.
• Fan control amp. continuously controls voltage to blower motor,
according to gate voltage from A/C amp.
• This power transistor does not require a HI relay even when the
maximum voltage is applied to blower motor at HI status, because voltage drop is nominal.
A/C UNIT ASSEMBLY : PTC Heater
INFOID:0000000010521012
• PTC heater is installed on passenger lower side of A/C unit assembly.
• Heat element is heated and air flow temperature is increased by
power supply from PTC relay.
Heater Control (A/C Amp.)
INFOID:0000000010499377
Heater control (A/C amp.) controls automatic air conditioning system
by inputting and calculating signals from each sensor and each
switch. A/C amp. has self-diagnosis function. Diagnosis of manual
heater system can be performed quickly.
JMIIA0793GB
JMIIA1317ZZ
JMIIA2397ZZ
JMIIA3575ZZ
COMPONENT PARTS
HAC-243
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
C
D
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A
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HAC
N
O
P
Ambient Sensor
INFOID:0000000010503108
Ambient sensor measures ambient air temperature. The sensor
uses a thermistor which is sensitive to the change in temperature.
The electrical resistance of the thermistor decreases as temperature
increases.
JMIIA1719GB
HAC-244
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
SYSTEM
SYSTEM
MANUAL HEATER SYSTEM
MANUAL HEATER SYSTEM : System Description
INFOID:0000000010433405
SYSTEM DIAGRAM
DESCRIPTION
• Manual heater system is controlled by each function of A/C amp.and ECM.
• Each operation of heater system can be controlled by heater control (built-in A/C amp.).
CONTROL BY A/C AMP.
•
HAC-244, "MANUAL HEATER SYSTEM : Air Inlet Control"
•
HAC-245, "MANUAL HEATER SYSTEM : Door Control"
•
HAC-247, "MANUAL HEATER SYSTEM : Door Motor Starting Position Reset Control"
• Correction for input value
Ambient temperature correction
- A/C amp. inputs the temperature detected by ambient sensor as the ambient temperature.
- A/C amp. performs the correction of the temperature detected by ambient sensor for air conditioning control.
- A/C amp. selects and uses the initial value of ambient temperature data depending on the engine coolant
temperature when turning the ignition switch from OFF to ON. The detection temperature of the ambient
sensor is used when engine coolant temperature is low [less than approximately 56
°
C (133
°
F)]. The mem-
ory data (before the ignition switch is OFF) when the engine is warmed up [approximately 56
°
C (133
°
F) or
more].
- The correction of the ambient temperature is not performed when the detection temperature of the ambient
temperature is less than approximately
−
20
°
C (–4
°
F).
MANUAL HEATER SYSTEM : Air Inlet Control
INFOID:0000000010433409
DESCRIPTION
• A/C amp. controls the intake door motor and switches the air inlets.
• When the following conditions are met, A/C amp. controls the air inlets to 20% recirculation. (However, this
does not occur when high water temperature control is in effect.)
At this time, the intake switch indicator lamp turns OFF.
JMIIA3579GB
SYSTEM
HAC-245
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
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HAC
N
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P
- Fan control dial: 21th - 24th
- Temperature control dial: Full hot
- Air outlet mode: DF ON or DEF ON
HIGH ENGINE COOLANT TEMPERATURE CONTROL
When either of the following conditions is met, A/C amp. changes the air inlets to recirculation.
Condition 1
• Air outlet: Other than D/F or DEF
• Ambient temperature: More than 25
°
C (77
°
F)
• Vehicle speed: 30 km/h or more
• Engine coolant temperature: 105
°
C (221
°
F) or more
Condition 2
• Air outlet: D/F or DEF
• Air inlet: Fresh air intake
• Ambient temperature: More than 25
°
C (77
°
F)
• Vehicle speed: 30 km/h or more
• Engine coolant temperature: 105
°
C (221
°
F) or more
MANUAL HEATER SYSTEM : Door Control
INFOID:0000000010433411
SWITCH AND THEIR CONTROL FUNCTION
Intake door
Blower motor
Air conditioner filter
Heater core
PTC heater
Air mix door
Foot door
Side ventilator door
Sub defroster door
Center ventilator and defroster door
Fresh air
Recirculation air
Discharge air
JMIIA3580ZZ
HAC-246
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
SYSTEM
*1: Not applicable
*2: With rear foot duct
NOTE:
The sub-defroster and side ventilator door include a permanent opening and does not fully close.
*: Air inlet status is displayed by indicator during activating automatic control
AIR DISTRIBUTION
Without rear ventilator, without rear foot
Defroster
Center ventilator
Side ventilator
Rear ventilator
*1
Front foot
Rear foot
*2
Switch/dial position
Door position
Mode door
Intake door
Air mix
door
Cen
te
r ve
nt
ila
to
r an
d d
e
fr
os
ter
do
or
Su
b d
e
fr
os
te
r do
or
Si
de
ve
nt
ila
tor
do
or
Fo
ot do
or
MODE VENT switch
VENT
—
—
MODE B/L switch
Bi-level (B/L)
MODE FOOT switch
FOOT
MODE D/F switch
DEF/FOOT (D/F)
MODE DEF switch
DEF
INTAKE switch
—
—
—
—
Temperature control dial
Full cold
—
Full cold – Full hot
-
Full hot
Discharge air flow
MODE position
Air outlet/distribution
Ventilator
Front foot
Defroster
Center
Side
V/D
40%
35%
—
25%
VENT
54%
46%
—
—
B/L
31%
40%
29%
—
ALL
21%
34%
31%
14%
FOOT
—
10%
58%
32%
D/F
—
9%
43%
48%
DEF
—
10%
—
90%
SYSTEM
HAC-247
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
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HAC
N
O
P
Without rear ventilator, with rear foot
MANUAL HEATER SYSTEM : Door Motor Starting Position Reset Control
INFOID:0000000010519453
• Step motors are used for the mode door motor air mix door motor, and intake door motor.
• Because the step motors do not have position detection mechanisms, there may be a deviation between the
door position recognized by A/C amp. and the actual door position.
Therefore, A/C amp. performs motor zero position reset for aligning its recognized door position with the
actual door position.
• The reset signal is transmitted from A/C amp. to the air mix door motor, mode door motor, and intake door
motor, which then perform zero position reset.
• After any of the following conditions is met, A/C amp. performs motor zero position reset when the ignition
switch is next turned ON.
- The ignition switch is turned from ON to OFF a total of 360 times.
- The ignition switch turns OFF while the mode door motor, air mix door motor, or intake door motor is operat-
ing.
• If A/C amp., air mix door motor, mode door motor, or intake door motor is removed, it is necessary to perform
motor zero position reset using CONSULT.
PTC HEATER CONTROL SYSTEM
PTC HEATER CONTROL SYSTEM : System Description
INFOID:0000000010502942
SYSTEM DIAGRAM
DESCRIPTION
• BCM performs PTC relay ON/OFF control based on engine speed, engine coolant temperature, electrical
power cut freeze signal (permission signal, retention signal, stop signal), blower motor operation state sig-
nal, front window defogger state signal, ambient temperature signal, battery voltage, and electrical load state
(high beam request, low beam request, and others).
Discharge air flow
MODE position
Air outlet/distribution
Ventilator
Foot
Defroster
Center
Side
Front
Rear
V/D
40%
35%
—
—
25%
VENT
54%
46%
—
—
—
B/L
33%
40%
16%
11%
—
ALL
22%
35%
16%
11%
16%
FOOT
—
11%
32%
25%
32%
D/F
—
8%
24%
19%
49%
DEF
—
10%
—
—
90%
JMIIA3583GB
HAC-248
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
SYSTEM
• When PTC relay turns ON, power supply is supplied to PTC heater. Heating element is heated and air flow
temperature is increased. Heating is available for a period of time until engine coolant temperature is
increased when engine starts cold in cold climate.
• Idle up request signal is transmitted from BCM to ECM while PTC heater operates. Idle speed is increased,
warming-up is facilitated, and battery electric power is obtained.
• Electric power supplied to PTC heating element is subject to PTC relay control conditions.
NOTE:
PTC heater operation depends on ambient temperature and battery voltage. PTC heater is ON when ambient
temperature is 8
°
C or less. PTC heater is OFF when ambient temperature is 12
°
C (53.6
°
F) or more. PTC
heater is ON when battery voltage is 11.5 V or more. PTC heater is OFF when battery voltage is 11 V or less.
PTC heater
Operation
PTC relay-1
PTC relay-2
PTC relay-3
Electric power (W)
OFF
OFF
OFF
OFF
OFF
Approx. 0
PTC heater-1
LOW
ON
OFF
OFF
Approx. 333
PTC heater-2
MID
ON
ON
OFF
Approx. 666
PTC heater-3
HI
ON
ON
ON
Approx. 999
OPERATION
HAC-249
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
C
D
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A
B
HAC
N
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OPERATION
Switch Name and Function
INFOID:0000000010433415
OPERATION AND DISPLAY OF AUTOMATIC AIR CONDITIONING SYSTEM
Operation: Heater control
MODE D/F switch
MODE FOOT switch
MODE B/L switch
MODE VENT switch
Fan control dial
MODE DEF switch
INTAKE switch
Temperature control dial
Switch name
Function
INTAKE switch
Air inlet changes between recirculation (REC)
⇔
fresh air intake (FRE) each time this switch is pressed.
• Switch indicator lamp ON: Recirculation
• Switch indicator lamp OFF: Fresh air intake
Fan control dial
The air flow can be manually set within the range of speeds 1st - 24th by operating the dial.
Temperature control
dial
The air flow temperature can be adjusted by operating the dial.
• Clockwise: Raise the air flow temperature.
• Counterclockwise: Lower the air flow temperature.
MODE VENT switch
• Air outlet mode is changed by pushing these switches.
• When MODE D/F switch or MODE DEF switch is pushed, air inlet is changed to fresh air intake (FRE)
• When MODE DEF switch is pushed while air outlet is set on DEF position, air outlet mode is controlled
to setting before air outlet is set to DEF position.
MODE B/L switch
MODE FOOT switch
MODE D/F switch
MODE DEF switch
JMIIA3581ZZ
HAC-250
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
DIAGNOSIS SYSTEM (A/C AMP.)
DIAGNOSIS SYSTEM (A/C AMP.)
Description
INFOID:0000000010433416
Air conditioning system performs self-diagnosis, operation check, function diagnosis, and various settings
using diagnosis function of each control unit.
CONSULT Function
INFOID:0000000010433417
CONSULT performs the following functions via CAN communication with A/C amp.
NOTE:
Diagnosis should be performed with engine running. Door motor operation speeds become slower and NO
results may be returned even for normal operation if battery voltage drops below 12 V during self-diagnosis.
ECU IDENTIFICATION
Part number of A/C amp. can be checked.
SELF-DIAGNOSIS RESULTS
Diagnosis result that is judged by A/C amp. can be checked. Refer to
.
DATA MONITOR
Input/output signal of A/C amp. can be checked.
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Display item list
ECU
Diagnostic item
(CONSULT)
A/C amp.
HVAC
Self Diagnostic Result
Data Monitor
Active Test
Work support
BCM
BCM-AIR CONDITIONER
Self Diagnostic Result
Data Monitor
ECM
ENGINE
Self Diagnostic Result
Data Monitor
Diagnostic mode
Description
Ecu Identification
Displays the part number of A/C amp.
Self Diagnostic Result
Displays the diagnosis results judged by A/C amp.
Data Monitor
Displays the input/output signal of A/C amp.
Active Test
The signals used to activate each device are forcibly supplied from A/C amp.
Work support
Changes the setting for each setting function and performs automatic adjustment of
components.
Monitor item [Unit]
Description
AMB TEMP SEN
[
°
C (
°
F)]
Ambient temperature value converted from ambient temperature signal received from
combination meter via CAN communication.
INT TEMP SEN
[
°
C (
°
F)]
NOTE:
This item is indicated, but not monitored.
AMB SEN CAL
[
°
C (
°
F)]
Ambient temperature value calculated by A/C amp.
INT TEMP CAL
[
°
C (
°
F)]
NOTE:
This item is indicated, but not monitored.
COMP REQ SIG
[On/Off]
NOTE:
This item is indicated, but not monitored.
DIAGNOSIS SYSTEM (A/C AMP.)
HAC-251
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
C
D
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J
K
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A
B
HAC
N
O
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ACTIVE TEST
The signals used to activate each device forcibly supplied from A/C amp. operation check of air conditioning
system can be performed.
Check each output device
NOTE:
Perform the inspection of each output device after starting the engine because the compressor is operated.
WORK SUPPORT
Setting change of each setting functions and automatic adjustment of components can be performed.
COMP ECV DUTY
[%]
NOTE:
This item is indicated, but not monitored.
FAN REQ SIG
[On/Off]
Displays blower fan ON signal ON/OFF status transmitted to ECM.
FAN DUTY
Target duty ratio of voltage (applied voltage) applied to blower motor by A/C amp.
VEHICLE SPEED
[km/h
(mph)]
Vehicle speed signal value received from combination meter via CAN communication.
Monitor item [Unit]
Description
Test item
Description
HVAC TEST
The operation check of air conditioning system can be performed by selecting the mode.
Refer to the following table for the conditions of each mode.
Test item
MODE 1
MODE 2
MODE 3
MODE 4
MODE 5
MODE 6
MODE 7
Mode door motor position
VENT
VENT
B/L
B/L
FOOT
D/F
DEF
Intake door motor position
REC
REC
20% FRE
20% FRE
FRE
FRE
FRE
Air mix door motor position
FULL COLD
FULL COLD
FULL COLD
FULL HOT
FULL HOT
FULL HOT
FULL HOT
Blower motor (duty ratio)
35%
35%
60%
60%
90%
90%
35%
Work item
Description
Refer to
Door Motor Starting Position Reset
Starting position reset of air mix door motor and mode door
motor can be performed.
HAC-252
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000010916205
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×
: Applicable item
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM.
CAN Diag Support Monitor
Monitors the reception status of CAN communication viewed from BCM.
Data Monitor
The BCM input/output signals are displayed.
Active Test
The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification
The BCM part number is displayed.
Configuration
• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Door lock
DOOR LOCK
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Exterior lamp
HEAD LAMP
×
×
×
Interior room lamp control
INT LAMP
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
PTC heater control
AIR CONDITONER
×
Intelligent Key system
INTELLIGENT KEY
×
×
×
Combination switch
COMB SW
×
Body control system
BCM
×
NVIS - NATS
IMMU
×
Interior room lamp battery saver
BATTERY SAVER
×
Back door open
TRUNK
×
Vehicle security
THEFT ALM
×
×
RAP
RETAINED PWR
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
Signal buffer system
SIGNAL BUFFER
×
×
DIAGNOSIS SYSTEM (BCM)
HAC-253
< SYSTEM DESCRIPTION >
[MANUAL HEATER ]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
AIR CONDITIONER
AIR CONDITIONER : CONSULT Function (BCM - AIR CONDITIONER)
INFOID:0000000010502890
ACTIVE TEST
CONSULT screen item
Indication/Unit
Description
BATTERY VOLTAGE
V
Battery voltage of the moment a particular DTC is detected.
VEHICLE SPEED
km/h
Vehicle speed of the moment a particular DTC is detected.
EXTERNAL TEMP
°
C
External temperature of the moment a particular DTC is detected
VEHICLE COND
—
NOTE:
This item is displayed, but cannot be use this item.
DOOR LOCK STATUS
—
NOTE:
This item is displayed, but cannot be use this item.
POWER SUPPLY
COUNTER
min
Displays the cumulative time from the time that the battery terminal is connected.
Test item
Operation
Description
PTC RELAY-1
Off/On
PTC RELAY-1 is turned OFF/ON.
PTC RELAY-2
Off/On
PTC RELAY-2 is turned OFF/ON.
PTC RELAY-3
Off/On
PTC RELAY-3 is turned OFF/ON.
HAC-254
< ECU DIAGNOSIS INFORMATION >
[MANUAL HEATER ]
A/C AMP.
ECU DIAGNOSIS INFORMATION
A/C AMP.
Reference Value
INFOID:0000000010433420
CONSULT DATA MONITOR REFERENCE VALUES
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item
Condition
Value/Status
AMB TEMP SEN
Ignition switch ON
Equivalent to ambient tem-
perature
INT TEMP SEN
NOTE:
This item is indicated, but not monitored.
0
AMB SEN CAL
Ignition switch ON
Equivalent to ambient tem-
perature
INT TEMP CAL
NOTE:
This item is indicated, but not monitored.
0
COMP REQ SIG
NOTE:
This item is indicated, but not monitored.
Off
COMP ECV DUTY
NOTE:
This item is indicated, but not monitored.
0%
FAN REQ SIG
Engine: Run at idle after
warming up
Blower motor: ON
On
Blower motor: OFF
Off
FAN DUTY
Engine: Run at idle after
warming up
Blower motor: ON
1 – 100
Blower motor: OFF
0
VEHICLE SPEED
Turn drive wheels and compare CONSULT value with the
speedometer indication.
Equivalent to speedometer
reading
JMIIA3431ZZ
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
1
(G)
Ground
Fan control amp. control
Output
Ignition
switch ON
Blower mo-
tor: 1st - 23rd
speed (man-
ual)
2.5 – 3.5 V
Blower mo-
tor: 24th
speed (man-
ual)
10 – 11 V
A/C AMP.
HAC-255
< ECU DIAGNOSIS INFORMATION >
[MANUAL HEATER ]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
3
(SB)
Ground
Accessory power supply
Input
Ignition switch ON
11 – 14 V
4
(V)
Ground
Ignition power supply
Input
Ignition switch ON
11 – 14 V
7
(L)
—
CAN-H
Input/
Output
—
—
8
(W)
Ground
Door motor power supply (mode,
intake)
Output
• Ignition switch ON
• Each following condition
- Immediately after the IN-
TAKE switch is operated
(when intake door motor
operates)
- Immediately after each
MODE switch is operated
(when mode door motor
operates)
11 – 14 V
9
(BG)
Ground
Air mix door motor drive 1
Output
• Ignition switch ON
• Immediately after the tem-
perature control dial is op-
erated (when the air mix
door motor operates)
10
(Y)
Ground
Air mix door motor drive 2
11
(V)
Ground
Intake door motor drive 1
Output
• Ignition switch ON
• Immediately after the IN-
TAKE switch is operated
(when intake door motor
operates)
12
(GR)
Ground
Intake door motor drive 2
13
(LG)
Ground
Mode door motor drive 1
Output
• Ignition switch ON
• Immediately after the each
MODE switch is operated
(when mode door motor
operates)
14
(SB)
Ground
Mode door motor drive 2
17
(W)
Ground
Blower motor feedback
Output
Ignition
switch ON
Blower mo-
tor: 1st
speed (man-
ual)
9.0 – 10.5 V
19
(B)
Ground
Ground
—
Ignition switch ON
0 – 0.1 V
23
(R)
—
CAN-L
Input/
Output
—
—
24
(SB)
Ground
Door motor power supply (air
mix)
Output
• Ignition switch ON
• Following condition
- Immediately after the tem-
perature control dial is op-
erated
11 – 14 V
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
JPIIA1647GB
JPIIA1647GB
JPIIA1647GB
HAC-256
< ECU DIAGNOSIS INFORMATION >
[MANUAL HEATER ]
A/C AMP.
DTC Index
INFOID:0000000010433422
25
(GR)
Ground
Air mix door motor drive 3
Output
• Ignition switch ON
• Immediately after the tem-
perature control dial is op-
erated (when the air mix
door motor operates)
26
(P)
Ground
Air mix door motor drive 4
27
(LG)
Ground
Intake door motor drive 3
Output
• Ignition switch ON
• Immediately after the IN-
TAKE switch is operated
(when intake door motor
operates)
28
(R)
Ground
Intake door motor drive 4
29
(L)
Ground
Mode door motor drive 3
Output
• Ignition switch ON
• Immediately after the each
MODE switch is operated
(when mode door motor
operates)
30
(G)
Ground
Mode door motor drive 4
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
JPIIA1647GB
JPIIA1647GB
JPIIA1647GB
DTC
Items
(CONSULT screen terms)
Reference
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
B24B7
INTAKE DOOR MOTOR
[CIRCUIT SHORT TO BATTERY]
[CIRC SHORT TO GRND OR OPEN]
B24B9
MODE DOOR MOTOR
[CIRCUIT SHORT TO BATTERY]
[CIRC SHORT TO GRND OR OPEN]
B24BB
LEFT AIR MIX DOOR MOTOR
[CIRCUIT SHORT TO BATTERY]
[CIRC SHORT TO GRND OR OPEN]
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