climate control INFINITI QX56 2011 Factory Owner's Manual
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![INFINITI QX56 2011 Factory Owners Manual
A/C AUTO AMP.HAC-45
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONING]
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*1: With ACCS (advanced climate control system)
*2: A/C auto amp. is not used for con INFINITI QX56 2011 Factory Owners Manual
A/C AUTO AMP.HAC-45
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONING]
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*1: With ACCS (advanced climate control system)
*2: A/C auto amp. is not used for con](/img/42/57033/w960_57033-3150.png)
A/C AUTO AMP.HAC-45
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONING]
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*2: A/C auto amp. is not used for control.
Fail-safeINFOID:0000000006275887
FAIL-SAFE FUNCTION
If a communication error exists between the A/C auto am p., and the AV control unit and preset switch for 30
seconds or longer, air conditioning is controlled under the following conditions:
When ambient temperature is less than 3 °C (37 °F) and engine coolant temperature is less than 56 °C (133 °F)
When ambient temperature is 3 °C (37 °F) or more, or engine coolant temperature is 56 °C (133 °F) or more
DTC IndexINFOID:0000000006275888
34
(L/O) GroundRear blower motor control
signal Output Ignition switch ON
Rear fan speed: 1st
speed (manual)
37
(B) —Ground — — —
38
(G/W) Ground Rear A/C relay control signal Output Ignition
switch
ONRear blower
motor: ON
0 V
Rear blower
motor: OFF 12 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
JSIIA0096ZZ
Compressor : ON
Air outlet : DEF
Air inlet : FRE (Fresh air intake)
Blower fan speed : AUTO
Set temperature : Setting before communication error occurs
Compressor : ON
Air outlet : AUTO
Air inlet : 20% FRE (20% fresh air intake)
Blower fan speed : AUTO
Set temperature : Setting before communication error occurs
DTC Items
(CONSULT-III screen terms) Reference
U1000 CAN COMM CIRCUIT HAC-72, "
DTC Logic"
U1010 CONTROL UNIT (CAN)HAC-73, "DTC Logic"
B2578 IN-VEHICLE SENSORHAC-74, "DTC Logic"
B2579 IN-VEHICLE SENSORHAC-74, "DTC Logic"
B257B AMBIENT SENOR HAC-77, "DTC Logic"
B257C AMBIENT SENOR HAC-77, "DTC Logic"
B2581 INTAKE SENSORHAC-80, "DTC Logic"
B2582 INTAKE SENSORHAC-80, "DTC Logic"
Revision: 2010 May2011 QX56
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![INFINITI QX56 2011 Factory Owners Manual
HAC-46
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONING]
A/C AUTO AMP.
*1: With ACCS (advanced climate control system)
*2: Perform self-diagnosis under sunshine. When performi
ng indoors, aim INFINITI QX56 2011 Factory Owners Manual
HAC-46
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONING]
A/C AUTO AMP.
*1: With ACCS (advanced climate control system)
*2: Perform self-diagnosis under sunshine. When performi
ng indoors, aim](/img/42/57033/w960_57033-3151.png)
HAC-46
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONING]
A/C AUTO AMP.
*1: With ACCS (advanced climate control system)
*2: Perform self-diagnosis under sunshine. When performi
ng indoors, aim a light (more than 60 W) at sunload
sensor, otherwise self-diagnosis indicates even though the sunload sensor is functioning normally.
NOTE:
If all of door motor DTCs (B2632, B2633, B2634, B2635, B2636, B2637, B2638, B2639, B263D, B263E,
B263F, B2654, B2655, B2661, B2662, B2663, B2664, B 2665, B2666, B2669, and B266A) are detected, check
door motor communication circuit. Refer to HAC-120, "
Diagnosis Procedure".
B262A*1GAS SENSOR HAC-83, "DTC Logic"
B262B*1GAS SENSORHAC-83, "DTC Logic"
B2630*2SUNLOAD SENSORHAC-86, "DTC Logic"
B2631*2SUNLOAD SENSORHAC-86, "DTC Logic"
B2632 DR AIRMIX DOOR MOT HAC-89, "DTC Logic"
B2633 DR AIRMIX DOOR MOTHAC-89, "DTC Logic"
B2634 PASS AIR MIX DOOR MOTHAC-91, "DTC Logic"
B2635 PASS AIR MIX DOOR MOTHAC-91, "DTC Logic"
B2636 DR VENT DOOR FAILHAC-93, "DTC Logic"
B2637 DR B/L DOOR FAILHAC-93, "DTC Logic"
B2638 DR D/F1 DOOR FAILHAC-93, "DTC Logic"
B2639 DR DEF DOOR FAILHAC-93, "DTC Logic"
B263D FRE DOOR FAIL HAC-95, "DTC Logic"
B263E 20P FRE DOOR FAILHAC-95, "DTC Logic"
B263F REC DOOR FAILHAC-95, "DTC Logic"
B2654 D/F2 DOOR FAILHAC-93, "DTC Logic"
B2655 B/L2 DOOR FAILHAC-93, "DTC Logic"
B2657*1GAS SENSOR CIRCUITHAC-83, "DTC Logic"
B2658*1GAS SENSOR CIRCUITHAC-83, "DTC Logic"
B2661 UPPER VENT DOOR MOT HAC-97, "DTC Logic"
B2662 UPPER VENT DOOR MOTHAC-97, "DTC Logic"
B2663 UPPER VENT DOOR MOTHAC-97, "DTC Logic"
B2664 REAR AIR MIX DOOR MOTHAC-99, "DTC Logic"
B2665 REAR AIR MIX DOOR MOTHAC-99, "DTC Logic"
B2666 REAR MODE DOOR MOTHAC-101, "DTC Logic"
B2667*2PASS SUNLOAD SENSORHAC-103, "DTC Logic"
B2668*2PASS SUNLOAD SENSORHAC-103, "DTC Logic"
B2669 REAR MODE DOOR MOT HAC-101, "DTC Logic"
B266A REAR MODE DOOR MOT HAC-101, "DTC Logic"
B266B REAR IN-VEHICLE SENHAC-106, "DTC Logic"
B266C REAR IN-VEHICLE SEN HAC-106, "DTC Logic"
B27B0 A/C AUTO AMP.HAC-109, "DTC Logic"
DTCItems
(CONSULT-III screen terms) Reference
Revision: 2010 May2011 QX56
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![INFINITI QX56 2011 Factory Owners Manual
HAC-62
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
OPERATION INSPECTION
FRONT AUTOMATIC AIR CONDITIONING SYSTEM
FRONT AUTOMATIC AIR CONDITIONIN
G SYSTEM : Work ProcedureINFO INFINITI QX56 2011 Factory Owners Manual
HAC-62
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
OPERATION INSPECTION
FRONT AUTOMATIC AIR CONDITIONING SYSTEM
FRONT AUTOMATIC AIR CONDITIONIN
G SYSTEM : Work ProcedureINFO](/img/42/57033/w960_57033-3167.png)
HAC-62
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
OPERATION INSPECTION
FRONT AUTOMATIC AIR CONDITIONING SYSTEM
FRONT AUTOMATIC AIR CONDITIONIN
G SYSTEM : Work ProcedureINFOID:0000000006275892
DESCRIPTION
The purpose of the operational check is to che ck that the individual system operates normally.
OPERATION INSPECTION
1.CHECK MEMORY FUNCTION
1. Set temperature control dial (driver side) to 32.0 °C (90 °F).
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 12.
2.CHECK FRONT BLOWER MOTOR
1. Start engine.
2. Operate fan switch.
3. Check that fan speed changes. C heck operation for all fan speeds.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 12.
3.CHECK DISCHARGE AIR (MOD E SWITCH AND DEF SWITCH)
1. Operate fan switch to set the fan speed to maximum speed.
2. Operate MODE switch and DEF switch.
3. Check that air outlets change according to each indica ted air outlet by placing a hand in front of the out-
lets. Refer to VTL-6, "
VENTILATION SYSTEM (FRONT AIR CO NDITIONING) : System Description".
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 12.
4.CHECK DISCHRGE AIR (UPPER VENTILATOR SWITCH)
1. Press MODE switch to set the air outlet to other than D/F or DEF.
2. Press upper ventilator switch. The upper ventilator switch indicator is turns ON.
3. Check that air flow blows from upper ventilator.
4. Press upper ventilator switch again. The upper ventilator switch indicator is turns OFF.
5. Check that air flow from upper ventilator stops.
Is the inspection result normal?
YES-1 >> With ACCS (advanced climate control system): GO TO 5.
YES-2 >> Without ACCS (advanced clim ate control system): GO TO 6.
NO >> GO TO 12.
5.CHECK INTAKE AIR [WITH ACCS (A DVANCED CLIMATE CONTROL SYSTEM)]
1. Press intake switch to set the air inlet to recirculation. The intake switch indicator 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. The intake switch indicator turns OFF.
4. Listen to intake sound and confirm air inlets change.
Is the inspection result normal?
Check condition : Engine running at normal operating temperature.
Revision: 2010 May2011 QX56
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![INFINITI QX56 2011 Factory Owners Manual
OPERATION INSPECTIONHAC-63
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONING]
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YES >> GO TO 7.
NO >> GO TO 12.
6.CHECK INTAKE AIR [WITHOUT ACCS (ADVANCED CLIMATE CONT INFINITI QX56 2011 Factory Owners Manual
OPERATION INSPECTIONHAC-63
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONING]
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YES >> GO TO 7.
NO >> GO TO 12.
6.CHECK INTAKE AIR [WITHOUT ACCS (ADVANCED CLIMATE CONT](/img/42/57033/w960_57033-3168.png)
OPERATION INSPECTIONHAC-63
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONING]
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YES >> GO TO 7.
NO >> GO TO 12.
6.CHECK INTAKE AIR [WITHOUT ACCS (ADVANCED CLIMATE CONTROL SYSTEM)]
1. Press REC switch to set the air inlet to recirculation. The REC switch indicator turns ON.
2. Listen to intake sound and confirm air inlets change.
3. Press FRE switch to set the air inlet to fresh air intake. The REC switch indicator turns OFF and FRE switch indicator turns ON.
4. Listen to intake sound and confirm air inlets change.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 12.
7.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 8.
NO >> GO TO 12.
8.CHECK DISCHARGE AIR TEMPERATURE (LH/ RH INDEPENDENT TEMERATURE ADJUSTMENT
FUNCTION)
1. Operate temperature control dial (driver side).
2. Check that discharge air temperature (driver side) changes.
3. Operate temperature control dial (passenger side). The DUAL switch indicator is turns ON.
4. Check that the discharge air te mperature (passenger side) changes.
5. Press DUAL switch. The DUAL switch indicator is turns OFF.
6. Check that air temperature se tting (LH/RH) is unified to the driver side temperature setting.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 12.
9.CHECK WITH TEMPERAT URE SETTING LOWERED
1. Operate compressor.
2. Operate temperature control dial (drive r side) and lower the set temperature to 18°C (60 °F).
3. Check that cool air blows from the air outlets.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 12.
10.CHECK TEMPERATURE INCREASE
1. Operate temperature control dial (drive r side) and raise the set temperature to 32°C (90 °F).
2. Check that warm air blows from the air outlets.
Is the inspection result normal?
YES >> GO TO 11.
NO >> GO TO 12.
11 .CHECK AUTO MODE
1. Press AUTO switch to confirm that “AUTO” is indicated on the display.
2. Operate temperature control dial (driver side) to check that fan speed or air outlet changes (the air outlet
or fan speed varies depending on the ambient temperatur e, in-vehicle temperature (front side), set tem-
perature, and etc.).
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 12.
Revision: 2010 May2011 QX56
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HAC-66
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
YES >> GO TO 4.
NO >> GO TO 7.
4.CHECK WITH TEMPERATURE SETTING LOWERED
1. Operate temperature control switch and lower t INFINITI QX56 2011 Factory Owners Manual
HAC-66
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
YES >> GO TO 4.
NO >> GO TO 7.
4.CHECK WITH TEMPERATURE SETTING LOWERED
1. Operate temperature control switch and lower t](/img/42/57033/w960_57033-3171.png)
HAC-66
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
YES >> GO TO 4.
NO >> GO TO 7.
4.CHECK WITH TEMPERATURE SETTING LOWERED
1. Operate temperature control switch and lower the set temperature to 18°C.
2. Check that cool air blows from the air outlets.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 7.
5.CHECK TEMPERATURE INCREASE
1. Operate temperature control switch and raise the set temperature to 32°C.
2. Check that warm air bl ows from the air outlets.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 7.
6.CHECK AUTO MODE
1. Press AUTO switch.
2. Operate temperature control switch to check that fan speed or air outlet changes (the air outlet or fan
speed varies depending on the ambient temperature, in-v ehicle temperature (rear side), set temperature,
and etc.).
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 7.
7.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 HAC-45, "DTC Index" and perform the appropriate diagnosis.
NO >> Refer to HAC-135, "
Diagnosis Chart By Symptom" and perform the appropriate diagnosis.
ACCS (ADVANCED CLIM ATE CONTROL SYSTEM)
ACCS (ADVANCED CLIMATE CONT ROL SYSTEM) : Work ProcedureINFOID:0000000006275894
DESCRIPTION
The purpose of the operational check is to che ck that the individual system operates normally.
NOTE:
Check that front automatic air conditi oning system operates normally. Refer to HAC-62, "
FRONT AUTOMATIC
AIR CONDITIONING SYSTEM : Work Procedure".
OPERATION INSPECTION
1.CHECK PLASMACLUSTER™ CONTROL
Check the ionizer operation sound (whirring sound) in the duc t by putting an ear to the center ventilator grille
(driver side) outlet while pressing fan switch and OFF switch alternately.
NOTE:
Plasmacluster
™ ion technology developed by Sharp Corporation is installed in this item.
Plasmacluster
™ is a trademark of Sharp Corporation.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK PLASMACLUSTER™ CONTROL OPERATION STATUS
Check condition : Engine running
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HAC-70
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
SYSTEM SETTING
If the temperature felt by the customer is different from
the rear air flow temperature controlled by the temper-
ature setting INFINITI QX56 2011 Factory Owners Manual
HAC-70
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
SYSTEM SETTING
If the temperature felt by the customer is different from
the rear air flow temperature controlled by the temper-
ature setting](/img/42/57033/w960_57033-3175.png)
HAC-70
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
SYSTEM SETTING
If the temperature felt by the customer is different from
the rear air flow temperature controlled by the temper-
ature setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature set-
ting.
HOW TO SET
With CONSULT-III
Perform “REAR TEMP SET CORRECT” of HVAC work support item.
NOTE:
When −3.0 °C ( −6 °F) is corrected on the temperature setting set as 25.0 °C (77 °F) the temperature controlled
by A/C auto amp. is 25.0 °C (77 °F) −3.0 °C ( −6 °F) = 22.0 °C (72 °F) and the temperature becomes lower than
the temperature setting.
When the battery cable is disconnected from the negativ e terminal or when the battery voltage becomes 10
V or less, the setting of the difference between t he set temperature and control temperature may be can-
celled.
ACCS (ADVANCED CLIM ATE CONTROL SYSTEM)
ACCS (ADVANCED CLIMATE CONTROL SYSTE M) : Exhaust Gas / Outside Odor
Detecting Sensor Sensitiv ity Adjustment Function
INFOID:0000000006275901
DESCRIPTION
According to customer’s sense of smell, exhaust gas / outside odor detecting sensor sensitivity can be
changed.
HOW TO SET
With CONSULT-III
Perform the “GAS SENSOR ADJUSTME NT” of HVAC work support item.
NOTE:
When the battery cable is disconnected from the negativ e terminal or when the battery voltage becomes 10 V
or less, the setting of WORK SUPPORT may be cancelled.
ACCS (ADVANCED CLIMATE CONTROL SYSTEM) : Auto Intake Switch Interlocking
Work support items Display ( °C) Display ( °F)
REAR TEMP SET CORRECT 3.0 6
2.5 5
2.0 4
1.5 3
1.0 2
0.5 1
0 (initial status) 0 (initial status) −0.5 −1
− 1.0 −2
− 1.5 −3
− 2.0 −4
− 2.5 −5
− 3.0 −6
Work support items Display Setting
GAS SENSOR ADJUSTMENT 2 Less sensitive setting than display 1 (REC later than display 1.)
1 Less sensitive setting than normal setting (REC later than normal operation.)
0 (initial status) Normal −1 More sensitive setting than normal setting (REC earlier than normal operation.)
− 2 More sensitive setting than display −1 (REC earlier than display −1.)
Revision: 2010 May2011 QX56
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ACCS (ADVANCE CLIMATE CONTROL SYSTEM)HAC-137
< SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONING]
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ACCS (ADVANCE CLIMATE CONTROL SYSTEM)
Symptom TableINFOID:00000000062 INFINITI QX56 2011 Factory Owners Manual
ACCS (ADVANCE CLIMATE CONTROL SYSTEM)HAC-137
< SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONING]
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ACCS (ADVANCE CLIMATE CONTROL SYSTEM)
Symptom TableINFOID:00000000062](/img/42/57033/w960_57033-3242.png)
ACCS (ADVANCE CLIMATE CONTROL SYSTEM)HAC-137
< SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONING]
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ACCS (ADVANCE CLIMATE CONTROL SYSTEM)
Symptom TableINFOID:0000000006275982
NOTE:
Perform the self-diagnoses with CONSULT-III before performing the symptom diagnosis. If DTC is detected,
perform the corresponding diagnosis.
The following table is based on the condition that fr ont automatic air conditioning system operates normally.
Symptom Corresponding malfunction part Reference
Auto intake switch cannot be operated. [Automatic
intake control (exhaust gas / outside odor detecting
mechanism) does not operate] Multi AV system
AV- 1 9 9 , "
Symptom Table"
Plasmacluster™ control does not operate.
NOTE:
Plasmacluster
™ ion technology developed by
Sharp Corporation is installed in this item.
Plasmacluster
™ is a trademark of Sharp Corpora-
tion. Power supply system of ionizer
The circuit between ionizer and A/C
auto amp.
Ionizer
A/C auto amp. HAC-124, "
Diagnosis Procedure"
Operation status of Plasmacluster™ control does not
switch according to air flow.
NOTE:
Plasmacluster
™ ion technology developed by
Sharp Corporation is installed in this item.
Plasmacluster
™ is a trademark of Sharp Corpora-
tion. A/C auto amp.
Replace A/C auto amp.. Refer to
HAC-146, "
Removal and Installa-
tion".
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SCS-66
< BASIC INSPECTION >[AIR LEVELIZER CONTROL SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
YES >> GO TO 7.
NO >> Check harness and connectors based on the information obtained by interview. Refer to
GI INFINITI QX56 2011 Factory Owners Manual
SCS-66
< BASIC INSPECTION >[AIR LEVELIZER CONTROL SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
YES >> GO TO 7.
NO >> Check harness and connectors based on the information obtained by interview. Refer to
GI](/img/42/57033/w960_57033-4425.png)
SCS-66
< BASIC INSPECTION >[AIR LEVELIZER CONTROL SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
YES >> GO TO 7.
NO >> Check harness and connectors based on the information obtained by interview. Refer to
GI-40,
"Intermittent Incident".
7.FINAL CHECK
With CONSULT-III
1. Check the reference value for “E-SUS”.
2. Recheck the symptom and check that the symp tom is not reproduced on the same conditions.
Is the symptom reproduced?
YES >> GO TO 3.
NO >> INSPECTION END
Diagnostic Work SheetINFOID:0000000006256059
Description
In general, customers have their own criteria for a pr oblem. Therefore, it is important to understand the
symptom and status well enough by asking the customer about his/her concerns carefully. To systemize all
the information for the diagnosis, prepare the inte rview sheet referring to the interview points.
In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.
INTERVIEW SHEET SAMPLE
Interview sheet
Custmer
name MR/MS Registration
number Initial year
registration
Vehicle type VIN
Storage date Engine Mileage km/Mile
Symptom † Does not operate ( ) function
† Warning lamp for ( ) turns ON
† Noise † Vibration
† Other
( )
First occurrence † Recently † Other ( )
Frequency of occurrence † Always † Under a certain conditions of † Sometimes ( time/day)
Climate con-
ditions †
Irrelevant
Weather † Fine † Cloud † Rain † Snow † Others ( )
Temperature † Hot † Warm † Cool † Cold † Temp. [Approx. °C ( °F)]
Relative humidity † High † Moderate † Low
Road conditions † Urban area † Suburb area † Highway
† Mountainous road (uphill or downhill) † Rough road
Operating condition, etc. † Irrelevant
† When engine starts † During idling
† During driving † During acceleration † At constant speed driving
† During deceleration
† During cornering (righ t curve or left curve)
† When steering wheel is steered (to right or to left)
Memo
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SE-1
BODY INTERIOR
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CONTENTS
SEAT
PRECAUTION ................ ...............................4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Service Notice ...........................................................4
Precaution for Work ..................................................4
PREPARATION ............................................6
PREPARATION .............................................. .....6
Commercial Service Tool .................................... ......6
CLIP LIST ............................................................7
Clip List ............................................................... ......7
SYSTEM DESCRIPTION ..............................8
COMPONENT PARTS ................................... .....8
POWER SEAT SYSTEM .............................................8
POWER SEAT SYSTEM : Component Parts Lo-
cation ................................................................... ......
8
POWER SEAT SYSTEM : Component Descrip-
tion ...................................................................... ......
8
LUMBAR SUPPORT SYSTEM .............................. ......8
LUMBAR SUPPORT SYSTEM : Component
Parts Location ..................................................... ......
9
LUMBAR SUPPORT SYSTEM : Component De-
scription .....................................................................
9
SECOND SEAT POWER UNLOCK SYSTEM ....... ......9
SECOND SEAT POWER UNLOCK SYSTEM :
Component Parts Location ......................................
10
SECOND SEAT POWER UNLOCK SYSTEM :
Component Description ...........................................
10
THIRD SEAT SEATBACK POWER FOLDING
SYSTEM ................................................................ ....
10
THIRD SEAT SEATBACK POWER FOLDING
SYSTEM : Component Parts Location ....................
11
THIRD SEAT SEATBACK POWER FOLDING
SYSTEM : Component Description ..................... ....
11
FRONT HEATED SEAT SYSTEM ......................... ....12
FRONT HEATED SEAT SYSTEM : Component
Parts Location ..........................................................
12
FRONT HEATED SEAT SYSTEM : Component
Description ...............................................................
12
SECOND HEATED SEAT SYSTEM ...................... ....13
SECOND HEATED SEAT SYSTEM : Component
Parts Location ..........................................................
13
SECOND HEATED SEAT SYSTEM : Component
Description ...............................................................
13
CLIMATE CONTROLLED SEAT SYSTEM ...............13
CLIMATE CONTROLLED SEAT SYSTEM : Com-
ponent Parts Location .......................................... ....
14
CLIMATE CONTROLLED SEAT SYSTEM : Com-
ponent Description ...................................................
14
SYSTEM ............................................................16
POWER SEAT SYSTEM ....... .....................................16
POWER SEAT SYSTEM : Syst em Description .......16
LUMBAR SUPPORT SYSTEM .............................. ....16
LUMBAR SUPPORT SYSTEM : System Descrip-
tion ...........................................................................
16
SECOND SEAT POWER UNLOCK SYSTEM ...........16
SECOND SEAT POWER UNLOCK SYSTEM :
System Description .............................................. ....
16
THIRD SEAT SEATBACK POWER FOLDING
SYSTEM .....................................................................
16
THIRD SEAT SEATBACK POWER FOLDING
SYSTEM : System Description ............................ ....
16
FRONT HEATED SEAT SYSTEM ......................... ....16
FRONT HEATED SEAT SYSTEM : System De-
scription ...................................................................
16
SECOND HEATED SEAT SYSTEM ...................... ....16
Revision: 2010 May2011 QX56
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SE-2
SECOND HEATED SEAT SYSTEM : System De-
scription ..................................................................
16
CLIMATE CONTROLLED SEAT SYSTEM ........... ...17
CLIMATE CONTROLLED SEAT SYSTEM : Sys-
tem Diagram ........................................................ ...
17
CLIMATE CONTROLLED SEAT SYSTEM : Sys-
tem Description .................................................... ...
17
CLIMATE CONTROLLED SEAT SYSTEM : Fail-
safe .........................................................................
17
ECU DIAGNOSIS INFORMATION ..............20
CLIMATE CONTROLLED SEAT CONTROL
UNIT ................................................................ ...
20
Reference Value .................................................. ...20
Fail-safe ..................................................................21
WIRING DIAGRAM .....................................24
POWER SEAT CONTROL SYSTEM (PAS-
SENGER SIDE) ............................................... ...
24
Wiring Diagram .................................................... ...24
LUMBAR SUPPORT SYSTEM ..........................28
Wiring Diagram .................................................... ...28
SECOND SEAT POWER UNLOCK SYSTEM ...33
Wiring Diagram .......................................................33
THIRD SEAT SEATBACK POWER FOLDING
SYSTEM .......................................................... ...
39
Wiring Diagram .................................................... ...39
FRONT HEATED SEAT SYSTEM .....................45
Wiring Diagram .................................................... ...45
SECOND HEATED SEAT SYSTEM ..................50
Wiring Diagram .................................................... ...50
CLIMATE CONTROLLED SEAT SYSTEM .......55
Wiring Diagram .................................................... ...55
BASIC INSPECTION ...................................66
DIAGNOSIS AND REPAIR WORK FLOW ..... ...66
Work Flow ............................................................ ...66
DTC/CIRCUIT DIAGNOSIS ...................... ...67
POWER SUPPLY AND GROUND CIRCUIT .. ...67
CLIMATE CONTROLLED SEAT CONTROL UNIT ...67
CLIMATE CONTROLLED SEAT CONTROL UNIT
: Diagnosis Procedure ............................................
67
CLIMATE CONTROLLED SEAT CONTROL UNIT
: Component Inspection ..........................................
70
CLIMATE CONTROLLED SEAT SWITCH ........72
Component Function Check .............................. ...72
Diagnosis Procedure ..............................................72
Component Inspection ............................................74
SEATBACK THERMAL ELECTRIC UNIT ........75
Component Function Check ............................... ...75
Diagnosis Procedure ...............................................75
SEATBACK THERMAL ELECTRIC UNIT
SENSOR ............................................................
77
Component Function Check ............................... ...77
Diagnosis Procedure ...............................................77
Component Inspection ............................................78
SEAT CUSHION THERMAL ELECTRIC UNIT ...79
Component Function Check ............................... ...79
Diagnosis Procedure ...............................................79
SEAT CUSHION THERMAL ELECTRIC UNIT
SENSOR ............................................................
81
Component Function Check ............................... ...81
Diagnosis Procedure ...............................................81
Component Inspection ............................................82
CLIMATE CONTROLLED SEATBACK
BLOWER MOTOR .............................................
83
Component Function Check ............................... ...83
Diagnosis Procedure ...............................................83
CLIMATE CONTROLLED SEAT CUSHION
BLOWER MOTOR .............................................
86
Component Function Check ............................... ...86
Diagnosis Procedure ...............................................86
CLIMATE CONTROLLED SEAT SWITCH IN-
DICATOR ...........................................................
89
Component Function Check ............................... ...89
Diagnosis Procedure ...............................................89
CLIMATE CONTROLLED SEAT BLOWER
FILTER ...............................................................
91
SEATBACK BLOWER MOTOR ............................. ...91
SEATBACK BLOWER MOTOR : Diagnosis Pro-
cedure .....................................................................
91
SEAT CUSHION BLOWER MOTOR ..................... ...91
SEAT CUSHION BLOWER MOTOR : Diagnosis
Procedure ...............................................................
91
SYMPTOM DIAGNOSIS ............................92
CLIMATE CONTROLLED SEAT DOES NOT
OPERATE. ...................................................... ...
92
Diagnosis Procedure ............................................ ...92
TEMPERATURE ADJUSTMENT IS IMPOSSI-
BLE ....................................................................
94
SEATBACK ............................................................ ...94
SEATBACK : Diagnosis Procedure ........................94
SEAT CUSHION ..................................................... ...94
SEAT CUSHION : Diagnosis Procedure .................94
Revision: 2010 May2011 QX56