Juke F15 (2012 year). Service Repair Manual — part 242
A/C AUTO AMP.
HAC-127
< ECU DIAGNOSIS INFORMATION >
[TYPE 2]
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ECU DIAGNOSIS INFORMATION
A/C AUTO AMP.
Reference Value
INFOID:0000000006659844
CONSULT-III DATA MONITOR REFERENCE VALUES
*: “DUTY” is displayed, but voltage is indicated. Or unit is not displayed but unit is (V).
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item
Condition
Value/Status
AMB TEMP SEN
Ignition switch ON
Equivalent to ambient tem-
perature
IN-VEH TEMP
Ignition switch ON
Equivalent to in-vehicle tem-
perature
INT TEMP SEN
Ignition switch ON
Equivalent to evaporator fin
temperature
SUNLOAD SEN
Ignition switch ON
Equivalent to sunload
amount
AMB SEN CAL
Ignition switch ON
Equivalent to ambient tem-
perature
IN-VEH CAL
Ignition switch ON
Equivalent to in-vehicle tem-
perature
INT TEMP CAL
Ignition switch ON
Equivalent to evaporator fin
temperature
SUNL SEN CAL
Ignition switch ON
Equivalent to sunload
amount
COMP REQ SIG
Engine: Run at idle after
warming up
A/C switch: ON
(Compressor operation sta-
tus)
On
A/C switch: OFF
Off
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
4 – 13
Blower motor: OFF
0
XM
Ignition switch ON
Value according to target air
flow temperature
ENG COOL TEMP
Ignition switch ON
Equivalent to engine coolant
temperature
VEHICLE SPEED
Turn drive wheels and compare CONSULT-III value with the
speedometer indication.
Equivalent to speedometer
reading
JMIIA0690ZZ
HAC-128
< ECU DIAGNOSIS INFORMATION >
[TYPE 2]
A/C AUTO AMP.
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
1
(L)
—
CAN-H
Input/
Output
—
—
2
(B)
Ground
Ground
—
Ignition switch ON
0 – 0.1 V
3
(Y)
Ground
Battery power supply
Input
Ignition switch OFF
11 – 14 V
6
(P)
Ground
A/C auto amp. connection rec-
ognition signal
Output
Ignition switch ON
11 – 14 V
7
(GR)
Ground
Ambient sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with ambi-
ent temperature
9
(P)
Ground
Sunload sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with sun-
load amount
13
(G)
Ground
Ignition power supply feedback
signal
Input
Ignition switch ON
11 – 14 V
14
(L)
Ground
Fan control amp. control signal
Output
• Ignition switch ON
• Blower motor: 1st – 6th
speed (manual)
2.0 – 3.0 V
• Ignition switch ON
• Blower motor: 7ht speed
(manual)
8.5 – 9.5 V
16
(V)
Ground
Door motor LIN signal
Input/
Output
Ignition switch ON
17
(W)
Ground
Door motor power supply
Output
Ignition switch ON
11 – 14 V
19
*
(Y)
Ground
PTC relay-1 control signal
Output
PTC heater
OFF
11 – 14 V
LOW, MID,
or HIGH op-
eration
0 – 0.1 V
20
*
(P)
Ground
PTC relay-3 control signal
Output
PTC heater
OFF
11 – 14 V
HIGH opera-
tion
0 – 0.1 V
21
(P)
—
CAN-L
Input/
Output
—
—
22
(B)
Ground
Ground
—
Ignition switch ON
0 – 0.1 V
23
(SB)
Ground
Ignition power supply
Input
Ignition switch ON
11 – 14 V
26
(R)
Ground
Sensor ground
—
Ignition switch ON
0 – 0.1 V
27
(LG)
Ground
In-vehicle sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with in-ve-
hicle temperature
SJIA1453J
A/C AUTO AMP.
HAC-129
< ECU DIAGNOSIS INFORMATION >
[TYPE 2]
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*: With K9K
Fail-safe
INFOID:0000000006659845
FAIL-SAFE FUNCTION
If a communication error exists between the A/C auto amp. and multi display unit for 2 seconds or longer, air
conditioning is controlled under the following conditions:
28
(V)
Ground
Intake sensor signal
Input
Ignition switch ON
0 – 4.8 V
Output voltage varies with evapo-
rator fin temperature
33
(Y)
Ground
A/C ON signal
Output
• Ignition switch ON
• A/C switch: OFF (A/C indi-
cator: OFF)
• Ignition switch ON
• A/C switch: ON (A/C indi-
cator: ON)
34
(R)
Ground
Blower motor feedback signal
Input
• Ignition switch ON
• Fan speed: 1st speed
(manual)
9.5 – 10.5 V
37
(B)
Ground
Door motor ground
—
Ignition switch ON
0 – 0.1 V
38
(LG)
Ground
Blower fan ON signal
Output
• Ignition switch ON
• Blower motor: OFF
• Ignition switch ON
• Blower motor: ON
39
*
(Y)
Ground
PTC relay-2 control signal
Output
PTC heater
OFF
11 – 14 V
MID, or
HIGH opera-
tion
0 – 0.1 V
Terminal No.
(Wire color)
Description
Condition
Value
+
−
Signal name
Input/
Output
JPMIA0012GB
JMIIA0941GB
JMIIA0941GB
PKIB4960J
A/C display
: OFF
Set temperature
: Setting before communication error occurs
HAC-130
< ECU DIAGNOSIS INFORMATION >
[TYPE 2]
A/C AUTO AMP.
DTC Index
INFOID:0000000006659846
*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload
sensor, otherwise self-diagnosis indicates even though the sunload sensor is functioning normally.
Air outlet
: AUTO
Air flow
: AUTO
Air inlet
: FRE (Fresh air intake)
A/C switch
: ON
DTC
Items
(CONSULT-III screen terms)
Reference
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
B2578
IN-VEHICLE SENSOR
B2579
IN-VEHICLE SENSOR
B257B
AMBIENT SENOR
B257C
AMBIENT SENOR
B2581
INTAKE SENSOR
B2582
INTAKE SENSOR
B2630
*
SUNLOAD SENSOR
B2631
*
SUNLOAD SENSOR
B2632
DR AIR MIX DOOR MOT
B2633
DR AIR MIX DOOR MOT
B2636
DR VENT DOOR FAIL
B2637
DR B/L DOOR FAIL
B2638
DR D/F1 DOOR FAIL
B2639
DR DEF DOOR FAIL
B263D
FRE DOOR FAIL
B263E
20P FRE DOOR FAIL
B263F
REC DOOR FAIL
B2654
D/F2 DOOR FAIL
B2655
B/L2 DOOR FAIL
B27B0
A/C AUTO AMP.
MULTI DISPLAY UNIT, BCM, ECM, IPDM E/R
HAC-131
< ECU DIAGNOSIS INFORMATION >
[TYPE 2]
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MULTI DISPLAY UNIT, BCM, ECM, IPDM E/R
List of ECU Reference
INFOID:0000000006659847
ECU
Reference
Multi display unit
AV-111, "DTC Inspection Priority Chart"
BCM
With Intelligent Key system
BCS-66, "DTC Inspection Priority Chart"
Without Intelligent Key system
BCS-140,
"DTC Inspection Priority Chart"
ECM
HR16DE
EC-521, "DTC Inspection Priority Chart"
MR16DDT
EC-106, "DTC Inspection Priority Chart"
K9K
IPDM E/R
With Intelligent Key system
Without Intelligent Key system
HAC-132
< WIRING DIAGRAM >
[TYPE 2]
AUTOMATIC AIR CONDITIONING SYSTEM
WIRING DIAGRAM
AUTOMATIC AIR CONDITIONING SYSTEM
Wiring Diagram
INFOID:0000000006546685
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information/Explanation of Option Abbreviation"
.
JCIWA0510GB
AUTOMATIC AIR CONDITIONING SYSTEM
HAC-133
< WIRING DIAGRAM >
[TYPE 2]
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JCIWA0511GB
HAC-134
< WIRING DIAGRAM >
[TYPE 2]
AUTOMATIC AIR CONDITIONING SYSTEM
JCIWA0512GB
DIAGNOSIS AND REPAIR WORK FLOW
HAC-135
< BASIC INSPECTION >
[TYPE 2]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000006659848
OVERALL SEQUENCE
DETAILED FLOW
1.
INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
JPLIA0313GB
HAC-136
< BASIC INSPECTION >
[TYPE 2]
DIAGNOSIS AND REPAIR WORK FLOW
>> GO TO 2.
2.
SYMPTOM CHECK
Check the symptom from the customer's information.
>> GO TO 3.
3.
BASIC INSPECTION
Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.
>> GO TO 4.
4.
SELF-DIAGNOSIS WITH CONSULT-III
Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?
YES
>> GO TO 5.
NO
>> GO TO 6.
5.
TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
>> GO TO 9.
6.
FAIL-SAFE ACTIVATION CHECK
Check that the symptom is applied to the fail-safe activation.
Does the fail-safe activate?
YES
>> GO TO 7.
NO
>> GO TO 8.
7.
SYSTEM DIAGNOSIS
Perform the system diagnosis for the system that the fail-safe activates. Specify the malfunctioning part.
>> GO TO 9.
8.
SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
>> GO TO 9.
9.
MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
>> GO TO 10.
10.
REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
Perform the self-diagnosis with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.
Is any DTC detected?
YES
>> GO TO 5.
NO
>> GO TO 11.
11.
REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES
>> INSPECTION END
NO
>> GO TO 3.
OPERATION INSPECTION
HAC-137
< BASIC INSPECTION >
[TYPE 2]
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OPERATION INSPECTION
Work Procedure
INFOID:0000000006659849
The purpose of the operational check is to check that the individual system operates normally.
1.
CHECK MEMORY FUNCTION
1.
Set temperature to 30
°
C by operating the temperature control dial.
2.
Press OFF switch.
3.
Turn ignition switch OFF.
4.
Turn ignition switch ON.
5.
Press AUTO switch.
6.
Check that set temperature is maintained.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 10.
2.
CHECK AIR FLOW
1.
Start engine.
2.
Operate fan control dial.
3.
Check that air flow changes. Check operation for all fan speeds.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 10.
3.
CHECK AIR OUTLET
1.
Operate fan control dial to set the fan speed to maximum speed.
2.
Operate MODE switch and DEF switch.
3.
Check that air outlets change according to each indicated air outlet by placing a hand in front of the air
outlets. Refer to
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 10.
4.
CHECK AIR INLET
1.
Press intake switch to set the air inlet to recirculation. [Intake switch indicator (
side) turns ON.]
2.
Listen to intake sound and confirm air inlets change.
3.
Press intake switch again to set the air inlet to fresh air intake. [Intake switch indicator (
side) turns
OFF and (
side) turns ON.]
4.
Listen to intake sound and confirm air inlets change.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 10.
5.
CHECK COMPRESSOR
1.
Press A/C switch. The A/C switch indicator is turns ON.
2.
Check visually and by sound that the compressor operates.
3.
Press A/C switch again The A/C switch indicator is turns OFF.
4.
Check that compressor stops.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 10.
6.
CHECK DISCHARGE AIR TEMPERATURE
1.
Operate temperature control dial.
2.
Check that discharge air temperature changes.
Check condition
: Engine running at normal operating temperature.
HAC-138
< BASIC INSPECTION >
[TYPE 2]
OPERATION INSPECTION
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 10.
7.
CHECK TEMPERATURE DECREASE
1.
Operate compressor.
2.
Operate temperature control dial and lower the set temperature to 16
°
C.
3.
Check that cool air blows from the air outlets.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 10.
8.
CHECK TEMPERATURE INCREASE
1.
Operate temperature control dial and raise the set temperature to 30
°
C.
2.
Check that warm air blows from the air outlets.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 10.
9.
CHECK AUTO MODE
1.
Press AUTO switch to confirm that “AUTO” is indicated on the display.
2.
Operate temperature control dial to check that air outlet or air flow changes (the air outlet or air flow varies
depending on the ambient temperature, in-vehicle temperature, set temperature, and etc.).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 10.
10.
CHECK SELF-DIAGNOSIS WITH CONSULT-III
1.
Perform self-diagnosis with CONSULT-III.
2.
Check that any DTC is detected.
Is any DTC detected?
YES
>> Refer to
and perform the appropriate diagnosis.
NO
>> GO TO 11.
11.
CHECK FAIL-SAFE ACTIVATION
Check that symptom is applied to the fail-safe activation. Refer to
>> Refer to
and perform the appropriate diagnosis.
SYSTEM SETTING
HAC-139
< BASIC INSPECTION >
[TYPE 2]
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SYSTEM SETTING
Temperature Setting Trimmer
INFOID:0000000006659850
DESCRIPTION
If the temperature felt by the customer is different from the air flow temperature controlled by the temperature
setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature setting.
HOW TO SET
With CONSULT-III
Perform “TEMP SET CORRECT” of HVAC work support item.
NOTE:
• When
−
3.0
°
C is corrected on the temperature setting set as 25.0
°
C the temperature controlled by A/C auto
amp. is 25.0
°
C
−
3.0
°
C = 22.0
°
C and the temperature becomes lower than the temperature setting.
• When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10
V or less, the setting of the difference between the set temperature and control temperature may be can-
celled.
Inlet Port Memory Function (REC)
INFOID:0000000006659852
DESCRIPTION
• If the ignition switch is turned to the OFF position while the intake switch is set to ON (recirculation), “Per-
form the memory” or “Do not perform the memory” of intake switch ON (recirculation) condition can be
selected.
• If “Perform the memory” was set, the intake switch will be ON (recirculation) when turning the ignition switch
to the ON position again.
• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
HOW TO SET
With CONSULT-III
Perform the “REC MEMORY SET” of HVAC work support item.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the REC memory function may be cancelled.
Work support items
Display (
°
C)
TEMP SET CORRECT
3.0
2.5
2.0
1.5
1.0
0.5
0 (initial status)
−
0.5
−
1.0
−
1.5
−
2.0
−
2.5
−
3.0
Work support items
Display
Setting
REC MEMORY SET
WITHOUT (initial status)
Perform the memory of manual REC
WITH
Do not perform the memory of manual REC (auto control)
HAC-140
< BASIC INSPECTION >
[TYPE 2]
SYSTEM SETTING
Inlet Port Memory Function (FRE)
INFOID:0000000006659851
DESCRIPTION
• If the ignition switch is turned to the OFF position while the intake switch is set to OFF (fresh air intake), “Per-
form the memory” or “Do not perform the memory” of intake switch OFF (fresh air intake) condition can be
selected.
• If “Perform the memory” was set, the intake switch will be OFF (fresh air intake) when turning the ignition
switch to the ON position again.
• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
HOW TO SET
With CONSULT-III
Perform the “FRE MEMORY SET” of HVAC work support item.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the FRE memory function may be cancelled.
Work support items
Display
Setting
FRE MEMORY SET
WITHOUT
Perform the memory of manual FRE
WITH (initial status)
Do not perform the memory of manual FRE (auto control)
U1000 CAN COMM CIRCUIT
HAC-141
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 2]
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000006548580
CAN (Controller Area Network) is a serial communication system for real time application. It is an on-vehicle
multiplex communication system with high data communication speed and excellent error detection ability.
Many electronic control units are equipped onto vehicles, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with two communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to
LAN-31, "CAN COMMUNICATION SYSTEM : CAN Communica-
DTC Logic
INFOID:0000000006548581
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT-.III
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-141, "Diagnosis Procedure"
NO
>> Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000006548582
1.
CHECK CAN COMMUNICATION SYSTEM
Check CAN communication system. Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
.
>> INSPECTION END
DTC
Items
(CONSULT-III screen terms)
DTC detection condition
Possible cause
U1000
CAN COMM CIRCUIT
When A/C auto amp. is not transmitting
or receiving CAN communication signal
for 2 or more seconds.
CAN communication system
HAC-142
< DTC/CIRCUIT DIAGNOSIS >
[TYPE 2]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
Description
INFOID:0000000006548583
Initial diagnosis of A/C auto amp.
DTC Logic
INFOID:0000000006548584
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM SELF-DIAGNOSIS
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “Self Diagnostic Result” mode of “HVAC” using CONSULT-.III
3.
Check DTC.
Is DTC detected?
YES
>> Refer to
HAC-142, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006548585
1.
REPLACE A/C AUTO AMP.
Replace A/C auto amp. Refer to
HAC-188, "Removal and Installation"
.
>> INSPECTION END
DTC
Items
(CONSULT-III screen terms)
DTC detection condition
Possible cause
U1010
CONTROL UNIT (CAN)
When detecting error during the initial diag-
nosis of CAN controller of A/C auto amp.
A/C auto amp.
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