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PG
PG-1
ELECTRICAL & POWER CONTROL
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SECTION PG
A
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CONTENTS
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
PRECAUTION ................
...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tools .......................................... ......4
SYSTEM DESCRIPTION ..............................5
COMPONENT PARTS ................................... .....5
Circuit Breaker .................................................... ......5
Battery .......................................................................5
Harness Connector ...................................................5
Standardized Relay ...................................................8
WIRING DIAGRAM ......................................11
POWER SUPPLY ROUTING CIRCUIT .......... ....11
Wiring Diagram - BATTERY POWER SUPPLY - ....11
Wiring Diagram - BATTERY POWER SUPPLY
FUSIBLE LINK No. K - ........................................ ....
29
Wiring Diagram - BATTERY POWER SUPPLY
FUSIBLE LINK No. S - ............................................
33
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 6 - ...........................................................
37
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 7 - ...........................................................
43
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 9 - ...........................................................
46
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 10 - .........................................................
51
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 35 - .........................................................
54
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 43 - .........................................................
60
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 46 - .........................................................
64
Wiring Diagram - BATTERY POWER SUPPLY
FUSE No. 47 - ..................................................... ....
67
Wiring Diagram - ACCESSORY POWER SUP-
PLY - ........................................................................
80
Wiring Diagram - ACCESSORY POWER SUP-
PLY FUSE No. 19 - .................................................
83
Wiring Diagram - ACCESSORY POWER SUP-
PLY FUSE No. 20 - .................................................
86
Wiring Diagram - IGNITION POWER SUPPLY - . ....89
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 3 - ....................................................... ..
105
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 4 - ....................................................... ..
109
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 37 - ..................................................... ..
115
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 55 - ..................................................... ..
121
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 57 - ..................................................... ..
123
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 61 - ..................................................... ..
126
Wiring Diagram - IGNITION POWER SUPPLY
FUSE No. 80 - ..................................................... ..
129
OPTION HARNESS ........................................133
Wiring Diagram .................................................... ..133
FUSE BLOCK - JUNCTION BOX (J/B) ..........140
Fuse, Connector and Terminal Arrangement ........140
FUSE, FUSIBLE LINK AND RELAY BOX ......141
Fuse and Fusible Link Arrangement ......................141
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ..............
143
Fuse, Connector and Terminal Arrangement ........143
HARNESS LAYOUT .......................................144
How To Read Harness Layout ............................ ..144
Outline ...................................................................145
Engine Room Harness ..........................................146
Engine Control Harness ........................................148
Revision: 2010 May2011 QX56
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PG-140
< WIRING DIAGRAM >
FUSE BLOCK - JUNCTION BOX (J/B)
FUSE BLOCK - JUNCTION BOX (J/B)
Fuse, Connector and Terminal ArrangementINFOID:0000000006275753
JCMWM8094GB
Revision: 2010 May2011 QX56
Page 4060 of 5598
PG
FUSE, FUSIBLE LINK AND RELAY BOXPG-141
< WIRING DIAGRAM >
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FUSE, FUSIBLE LINK AND RELAY BOX
Fuse and Fusible Link ArrangementINFOID:0000000006275754
JCMWM8469GB
Revision: 2010 May2011 QX56
Page 4061 of 5598
PG-142
< WIRING DIAGRAM >
FUSE, FUSIBLE LINK AND RELAY BOX
JCMWM8470GB
Revision: 2010 May2011 QX56
Page 5240 of 5598
![INFINITI QX56 2011 Factory Service Manual
TM-152
< DTC/CIRCUIT DIAGNOSIS >[7AT: RE7R01B]
MAIN POWER SUPPLY AND GROUND CIRCUIT
YES >> GO TO 5.
NO >> Repair or replace damaged parts.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermitten INFINITI QX56 2011 Factory Service Manual
TM-152
< DTC/CIRCUIT DIAGNOSIS >[7AT: RE7R01B]
MAIN POWER SUPPLY AND GROUND CIRCUIT
YES >> GO TO 5.
NO >> Repair or replace damaged parts.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermitten](/manual-img/42/57033/w960_57033-5239.png)
TM-152
< DTC/CIRCUIT DIAGNOSIS >[7AT: RE7R01B]
MAIN POWER SUPPLY AND GROUND CIRCUIT
YES >> GO TO 5.
NO >> Repair or replace damaged parts.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace the control valve & TCM. Refer to TM-182, "Exploded View".
NO >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM (PART 1)
Check the following.
Harness for short or open between battery positive term inal and A/T assembly vehicle side harness connec-
tor terminal 2. Refer to PG-11, "
Wiring Diagram - BATTERY POWER SUPPLY -".
Battery
10A fuse (No.38, located in the fuse, fusible link and relay box). Refer to PG-141, "
Fuse and Fusible Link
Arrangement".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> Repair or replace damaged parts.
7.CHECK HARNESS BETWEEN IPDM E/ R AND A/T ASSEMBLY (PART 1)
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R vehicle side harness connector terminal and A/T assembly vehicle
side harness connector terminals.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace damaged parts.
8.CHECK HARNESS BETWEEN IPDM E/ R AND A/T ASSEMBLY (PART 2)
Check continuity between A/T assembly vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair or replace damaged parts.
9.DETECT MALFUNCTIONING ITEM (PART 2)
Check the following.
Harness for short or open between ignition switch and IPDM E/R. Refer to PG-89, "
Wiring Diagram - IGNI-
TION POWER SUPPLY -".
Ignition switch
10A fuse (No.55, located in the IPDM E/R). Refer to PG-143, "
Fuse, Connector and Terminal Arrangement".
IPDM E/R
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> Repair or replace damaged parts.
IPDM E/R vehicle side harness connector A/T assembly vehicle side harness connector Continuity
Connector Terminal Connector Terminal
E15 57 F51 1
Existed
6
A/T assembly vehicle side harness connector
GroundContinuity
Connector Terminal
F51 1
Not existed
6
Revision: 2010 May2011 QX56