wiring INFINITI QX56 2004 Factory Service Manual

WT-10
TROUBLE DIAGNOSES
Revision: August 20072004 QX56
TROUBLE DIAGNOSESPFP:00004
Wiring Diagram — T/WARN —EES00129
WEWA0044E

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WIPER, WASHER & HORN
K ELECTRICAL
CONTENTS
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SECTION WW
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Revision: August 20072004 QX56 PRECAUTION ............................................................ 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
FRONT WIPER AND WASHER SYSTEM .................. 4
Components Parts and Harness Connector Loca-
tion ........................................................................... 4
System Description .................................................. 4
LOW SPEED WIPER OPERATION ...................... 5
HI SPEED WIPER OPERATION ........................... 5
INTERMITTENT OPERATION .............................. 5
AUTO STOP OPERATION .................................... 6
FRONT WASHER OPERATION ........................... 6
MIST OPERATION ................................................ 6
FAIL-SAFE FUNCTION ......................................... 6
COMBINATION SWITCH READING FUNCTION ..... 7
CAN Communication System Description ................ 7
Schematic ................................................................ 8
Wiring Diagram — WIPER — .................................. 9
Terminals and Reference Values for BCM ............. 12
Terminals and Reference Values for IPDM E/R ..... 13
Work Flow .............................................................. 13
Preliminary Inspection ............................................ 13
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT ............................................. 13
CONSULT-II Function (BCM) ................................. 15
CONSULT-II OPERATION .................................. 15
DATA MONITOR ................................................. 16
ACTIVE TEST ..................................................... 17
CONSULT-II Function (IPDM E/R) ......................... 17
CONSULT-II OPERATION .................................. 17
DATA MONITOR ................................................. 18
ACTIVE TEST ..................................................... 19
Trouble Diagnosis .................................................. 19
FRONT WIPER DOES NOT OPERATE ............. 19
FRONT WIPER STOP POSITION IS INCOR-
RECT .................................................................. 22
ONLY FRONT WIPER LOW DOES NOT OPER-
ATE ..................................................................... 23ONLY FRONT WIPER HI DOES NOT OPERATE ... 25
ONLY FRONT WIPER INT DOES NOT OPER-
ATE ...................................................................... 26
FRONT WIPER INTERMITTENT OPERATION
SWITCH POSITION CANNOT BE ADJUSTED ... 27
WIPERS DO NOT WIPE WHEN FRONT
WASHER OPERATES ........................................ 27
FRONT WIPERS OPERATE FOR 10 SECONDS,
STOP FOR 20 SECONDS, AND AFTER
REPEATING THIS OPERATION FIVE TIMES,
THEY BECOME INOPERATIVE ......................... 27
Removal and Installation of Front Wiper Arms,
Adjustment of Wiper Arms Stop Location ............... 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 29
Removal and Installation of Wiper Motor and Link-
age .......................................................................... 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 30
Washer Nozzle Adjustment .................................... 30
Washer Tube Layout .............................................. 31
Removal and Installation of Wiper and Washer
Switch ..................................................................... 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
Removal and Installation of Washer Tank .............. 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 32
Removal and Installation of Washer Motor ............. 32
REAR WIPER AND WASHER SYSTEM .................. 33
Components Parts and Harness Connector Loca-
tion .......................................................................... 33
System Description ................................................. 33
REAR WIPER OPERATION ................................ 33
INTERMITTENT OPERATION ............................ 34
AUTO STOP OPERATION .................................. 35
REAR WASHER OPERATION ............................ 35
BCM WIPER SWITCH READING FUNCTION .... 36
Wiring Diagram — WIP/R — .................................. 37
Terminals and Reference Values for BCM .............. 39

WW-2Revision: August 20072004 QX56 How to Proceed With Trouble Diagnosis ................ 41
Preliminary Inspection ............................................ 41
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT ............................................. 41
CONSULT-II Function (BCM) .................................. 43
CONSULT-II OPERATION ................................... 43
DATA MONITOR .................................................. 44
ACTIVE TEST ..................................................... 44
Rear Wiper Does Not Operate ............................... 45
Rear Wiper Stop Position Is Incorrect ..................... 47
Only Rear Wiper Does Not Operate ....................... 48
Only Rear Wiper Intermittent Does Not Operate .... 49
Wiper Does Not Wipe When Rear Washer Operates ... 49
Removal and Installation of Rear Wiper Arm, Adjust-
ment of Rear Wiper Arm Stop Location .................. 50
REMOVAL ........................................................... 50
INSTALLATION .................................................... 50
Removal and Installation of Rear Wiper Motor ....... 51
REMOVAL ........................................................... 51
INSTALLATION .................................................... 51Rear Washer Nozzle Adjustment ............................52
Rear Washer Tube Layout ......................................52
Removal and Installation of Rear Washer Nozzle ...52
REMOVAL ............................................................52
INSTALLATION ....................................................52
Check Valve ............................................................53
Removal and Installation of Rear Wiper and Washer
Switch .....................................................................53
Removal and Installation of Washer Tank ...............53
Removal and Installation of Washer Motor .............53
POWER SOCKET .....................................................54
Wiring Diagram — P/SCKT — ................................54
Removal and Installation of Power Sockets ............55
REMOVAL ............................................................55
INSTALLATION ....................................................55
HORN ........................................................................56
Wiring Diagram — HORN — ..................................56
Removal and Installation .........................................57
REMOVAL ............................................................57
INSTALLATION ....................................................57

PRECAUTION
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Revision: August 20072004 QX56
PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS007F3
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WA RN ING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Wiring Diagrams and Trouble Diagnosis EKS007F4
When you read wiring diagrams, refer to the following:

Refer to GI-15, "How to Read Wiring Diagrams" .

Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following:

Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" .

Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" .

FRONT WIPER AND WASHER SYSTEM
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Revision: August 20072004 QX56
Wiring Diagram — WIPER —EKS007F9
WKWA3099E

REAR WIPER AND WASHER SYSTEM
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Revision: August 20072004 QX56
Wiring Diagram — WIP/R —EKS007FQ
WKWA1264E

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POWER SOCKET
Revision: August 20072004 QX56
POWER SOCKETPFP:253A2
Wiring Diagram — P/SCKT — EKS007G9
WKWA2182E

WW-56
HORN
Revision: August 20072004 QX56
HORNPFP:25610
Wiring Diagram — HORN — EKS007GB
WKWA3102E