Power supply INFINITI FX35 2004 Service Manual

PRECAUTION
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Revision: 2004 November 2004 FX35/FX45
PRECAUTIONPFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS007KQ
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.
WARNING:

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 DiagnosisAKS0056N
When you read Wiring diagrams, refer to the following:

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

Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following:

Refer to GI-11, "How to Follow 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: 2004 November 2004 FX35/FX45
Terminals and Reference Values for IPDM E/RAKS0056V
How to Proceed With Trouble DiagnosisAKS0056W
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-4, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-16, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front wiper and washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
35 (W/G) Combination switch output 2
ON

Lighting switch and wiper switch
OFF

Wiper dial position 4 36 (W/R) Combination switch output 1
38 (W/L) Ignition switch (ON) ON — Battery voltage
39 (L) CAN H — — —
40 (R) CAN L — — —
42 (L/R) Battery power supply OFF — Battery voltage
49 (B) Ground ON — Approx. 0 V
52 (B) Ground ON — Approx. 0 V
55 (G) Battery power supply OFF — Battery voltage Terminal No.
(Wire color)Signal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA5292E
Terminal No.
(Wire color)Signal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
21 (P) Low speed signal ON Wiper switchOFF Approx. 0 V
LO Battery voltage
31 (PU) High speed signal ON Wiper switchOFF Approx. 0 V
HI Battery voltage
32 (L) Wiper auto - stop signal ONWiper operating Battery voltage
Wiper stopped Approx. 0 V
38 (B) Ground ON — Approx. 0 V
44 (OR) Washer motor power supply ON — Battery voltage
48 (L) CAN H — — —
49 (R) CAN L — — —
60 (B) Ground ON — Approx. 0 V

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FRONT WIPER AND WASHER SYSTEM
Revision: 2004 November 2004 FX35/FX45
Preliminary CheckAKS0056X
CHECK POWER SUPPLY AND GROUND CIRCUIT
Inspection Procedure
1. CHECK FUSE

Check if wiper and washer fuse is blown.
Refer to WW-11, "Wiring Diagram — WIPER —" .
OK or NG
OK >> GO TO 2
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector terminal and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between fuse, fusible link and BCM.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector M4 terminals 49
(B), 52 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
Front washer motor Ignition switch ON or START 84
Front wiper motor, front wiper relay, front wiper HI relay Battery 73
BCMBatteryM
22
Ignition switch ON or START 1
Terminals Ignition switch position
(+)
(-) OFF ON
Connector Terminal (Wire color)
M4 42 (L/R)
GroundBattery voltage Battery voltage
M4 55 (G) Battery voltage Battery voltage
M3 38 (W/L) 0V Battery voltage
PKIA5190E
49 (B), 52 (B) - Ground : Continuity should exist.
PKIA5191E

FRONT WIPER AND WASHER SYSTEM
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Revision: 2004 November 2004 FX35/FX45
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch item to be tested, and check operation.
3. Touch “START”.
4. Touch “STOP” while testing to stop the operation.
Front Wiper Does Not OperateAKS0079W
CAUTION:

During IPDM E/R fail-safe control, front wipers may not operate. Refer to PG-18, "CAN COMMUNI-
CATION LINE CONTROL" in “PG IPDM E/R” to make sure that it is not in fail-safe status.
1. CHECK IPDM E/R TO FRONT WIPERS (1)
With CONSULT-ll
1. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST”
on “SELECT DIAG MODE” screen.
2. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
Without CONSULT-ll
Start up auto active test. Refer to PG-24, "
Auto Active Test" .
Does the front wiper operate normally?
YES >> GO TO 6.
NO >> GO TO 2.
2. CHECK FUSE
1. Turn ignition switch OFF.
2. Check fuse No. 73 of IPDM E/R.
OK or NG
OK >> GO TO 3.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
Test item CONSULT-II screen display Description
Front wiper (HI, LO) output FRONT WIPERWith a certain operation (OFF, HI ON, LO ON), the front wiper relay
(Lo, Hi) can be operated.
SKIA3486E

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REAR WIPER AND WASHER SYSTEM
Revision: 2004 November 2004 FX35/FX45
How to Proceed With Trouble DiagnosisAKS0057L
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-35, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-40, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the rear wiper and washer operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END
Preliminary CheckAKS0057M
INSPECTION POWER SUPPLY AND GROUND CIRCUIT
Inspection Procedure
1. CHECK FUSE

Check if wiper and washer fusible link and fuse is blown.
Refer to WW-37, "Wiring Diagram — WIP/ R —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
35 (W/G) Combination switch output 2
ON

Lighting switch and wiper switch
OFF

Wiper dial position 4 36 (W/R) Combination switch output 1
38 (W/L) Ignition switch (ON) ON — Battery voltage
39 (L) CAN H — — —
40 (R) CAN L — — —
42 (L/R) Battery power supply OFF — Battery voltage
49 (B) Ground ON — Approx. 0 V
52 (B) Ground ON — Approx. 0 V
55 (G) Battery power supply OFF — Battery voltage
59 (Y) Rear wiper auto stop signal ONWiper operating Approx. 0 V
Wiper stopped Battery voltage
70 (SB) Rear wiper motor output signal ON Wiper switchOFF Approx. 0 V
ON Battery voltage Terminal No.
(Wire color)Signal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA5292E
Unit Power source Fuse and fusible link No.
BCMBatteryM
22
Ignition ON or START 1
Rear washer motor Ignition ON or START 84

REAR WIPER AND WASHER SYSTEM
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Revision: 2004 November 2004 FX35/FX45
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector terminal and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between fuse, fusible link and BCM.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector M4 terminal 49
(B), 52 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-II FunctionsAKS007AG
CONSULT-II can display each diagnostic item using the following diagnostic test modes: work support, self-
diagnostic results, data monitor and active test through data reception and command transmission via the
BCM CAN communication line.
CONSULT-II OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn the
ignition switch ON.
Terminals Ignition switch position
(+)
(-) OFF ON
Connector Terminal (Wire color)
M4 42 (L/R)
GroundBattery voltage Battery voltage
M4 55 (G) Battery voltage Battery voltage
M3 38 (W/L) 0V Battery voltage
PKIA5190E
49 (B), 52 (B) - Ground : Continuity should exist.
PKIA5191E
BCM diagnosis position Check item, Diagnosis mode Description
WiperData monitor Displays BCM input data in real time.
Active test Device operation can be checked by applying a drive signal to device.
BCM CAN DIAG SUPPORT MNTR The result of transmit/receive of CAN communication can be read.
PBIB1503E

REAR WIPER AND WASHER SYSTEM
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Revision: 2004 November 2004 FX35/FX45
ACTIVE TEST
Operation Procedure
1. Touch “WIPER” on the “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch items to be tested, and check operation.
4. During operation check, touching “STOP” deactivates operation.
Display Item List
Rear Wiper Does Not OperateAKS007A4
1. CHECK FUSE AND FUSIBLE LINK
Check fuse No. 1, 84 and fusible link No. M.
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK CIRCUIT BETWEEN BCM AND REAR WIPER
With CONSULT-ll
1. Select “BCM” on CONSULT-II, and select “WIPER” on “SELECT
SYSTEM” screen.
2. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Select “REAR WIPER” on “SELECT TEST ITEM” screen.
4. Confirm that rear wiper operates normally.
Without CONSULT-ll
GO TO 3.
Does rear wiper operate normally?
YES >> GO TO LT- 11 3 , "Combination Switch Inspection" .
NO >> GO TO 3.
FR WIPER LOW [ON/OFF] Displays “Front Wiper LOW (ON)/Other (OFF)” status as judged from wiper switch signal.
FR WIPER INT [ON/OFF] Displays “Front Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.
FR WASHER SW [ON/OFF] Displays “Front Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.
INT VOLUME [1 - 7] Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.
FR WIPER STOP [ON/OFF] Displays “Stopped (ON)/Operating (OFF)” status as judged from the auto-stop signal.
VEHICLE SPEED [km/h] Displays vehicle speed status as judged from vehicle speed signal.
RR WIPER ON [ON/OFF] Displays “Rear Wiper ON (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WIPER INT [ON/OFF] Displays “Rear Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WASHER SW [ON/OFF] Displays “Rear Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WIPER STOP [ON/OFF] Displays “Rear Wiper Stop (ON)/Other (OFF)” status, as judged from wiper switch signal.Monitor item [operation or unit] Display content
Test item Indication on CONSULT-II display Description
Front wiper HI output FRONT WIPER With a certain operation (OFF, HI, LO, INT), the front wiper can be operated.
Rear wiper output RR WIPER Rear wiper can be operated by any ON-OFF operation.
SKIA3503E