2004 INFINITI FX35 Fuse block

COMBINATION METERS
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Revision: 2004 November 2004 FX35/FX45
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METER

The vehicle speed signal and the memory signals from the meter memory circuit are processed by the
combination meter and the mileage is displayed.

Switch modes with following procedure.

When trip transfer switch is pressed, trip meter display changes.

If trip reset switch is pressed for 1 second or more while trip A is
displayed, only trip A is reset. (Same with trip B.)

If the battery is disconnected, odometer mileage will be retained
but the trip meter is reset to 0.0.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

through 10A fuse [No. 19, located in the fuse block (J/B)]

to combination meter terminal 8, and

to unified meter and A/C amp. terminal 21.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 7

through 10A fuse [No. 12, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 22.
With the ignition switch in the ACC or ON position, power is supplied

through 15A fuse [No. 10, located in the fuse block (J/B)], and

through 15A fuse [No. 11, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 46.
Ground is supplied

to combination meter terminals 5, 6 and 15

through body grounds M35, M45 and M85

to unified meter and A/C amp. terminals 29 and 30

through body grounds M35, M45 and M85.
PKIA2382E
SKIA4817E

DI-16
COMBINATION METERS
Revision: 2004 November 2004 FX35/FX45
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between combination meter harness connector
terminals and ground.
3. Check continuity between unified meter and A/C amp. harness
connector terminals and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Symptom Chart 1 AKS005MT
Symptom Chart 2AKS005MU
Terminals
Continuity (+)
(–)
ConnectorTerminal
(Wire color)
M205 (B)
Ground Yes 6 (B)
15 (B)
SKIA4833E
Terminals
Continuity (+)
(–)
ConnectorTerminal
(Wire color)
M5629 (B)
Ground Yes
30 (B)
SKIA5202E
Trouble phenomenon Possible cause
Indication is irregular for the speedometer and odo/trip meter. Refer to DI-17, "
Vehicle Speed Signal Inspection" .
Tachometer indication is malfunction. Refer to DI-18, "
Engine Speed Signal Inspection" .
Water temperature gauge indication is malfunction. Refer to DI-19, "
Water Temperature Signal Inspection" .
Fuel gauge indication is malfunction. Refer to DI-20, "
Fuel Level Sensor Signal Inspection 1" .
Low-fuel warning lamp indication is irregular. Refer to DI-21, "
Fuel Level Sensor Signal Inspection 2" .
Indications are irregular for more than one gauge. Replace combination meter.
A/T position indicator is malfunction. Refer to DI-53, "
A/T Indicator Is Malfunction" .
Illumination control does not operate.Refer to DI-24, "
Odo/Trip Meter and Illumination Control Switch
Inspection" .
Displayed item [Code] Inspection contents Possible cause
CAN COMM CIRC [U1000] Inspect the CAN communication.Refer to DI-22, "
CAN Communication System Inspection" .
CAUTION:
Even when there is no malfunction on CAN communica-
tion system, malfunction may be misinterpreted when bat-
tery has low voltage (when maintaining 7-8V for about 2
seconds) or 10A fuse [No. 19, located in the fuse block (J/
B)] is disconnected.

DI-32
UNIFIED METER AND A/C AMP
Revision: 2004 November 2004 FX35/FX45
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
“TIME” indicates the condition of the self-diagnosis results judged by each signal input.

Normal: In case of operating properly at the present in spite of having malfunction in the past, then “TIME”
indicates “1-63”.

Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, “0” is indicated.
After returning to normal condition, every time when ignition switch is turned to “OFF” from “ON”, time will be
added like “1”→“2”→“3”···“63”, and when the key operation is performed 64 times, the result of the self-diag-
noses will be erased. And if any malfunction is detected again, “0” will be indicated.
CAUTION:
“TIME” keeps showing “0” after returning to normal condition only in the case that malfunction his-
tory of “CAN COMM CIRC [U1000]” remains because of low tire pressure warning control unit, display
control unit (with NAVI) or display unit (without NAVI) malfunction.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG-
NALS” is selected, main items will be monitored.
SKIA4956E
CONSULT-ll display Malfunction is detected when...
CAN COMM CIRC [U1000]Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7-8V for about 2 seconds)
or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected.
METER COMM CIRC [B2202]Malfunction is detected in communication of between combination meter and unified meter and
A/C amp.
VEHICLE SPEED CIRC [B2205]When an erroneous speed signal is input for 1 seconds.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be misinter-
preted when battery has low voltage (when maintaining 7-8V for about 2 seconds).
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.

WARNING CHIME
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Revision: 2004 November 2004 FX35/FX45
WARNING CHIMEPFP:24814
Component Parts and Harness Connector LocationAKS005NK
System DescriptionAKS005NL
FUNCTION
Power is supplied at all times

through 50A fusible link (letter M , located in the fuse and fusible link box)

to BCM terminal 55

through 15A fuse [No. 22, located in the fuse block (J/B)]

to key switch terminal 2 (without Intelligent Key), and

to BCM terminal 42

through 10A fuse [No. 38, located in the fuse and fusible link box (with Intelligent Key)]

to key switch and ignition knob switch terminals 1 and 3

through 10A fuse [No. 19, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 21, and

to combination meter terminal 8.
When ignition switch ON or START position, power is supplied
SKIA9338E

DI-56
WARNING CHIME
Revision: 2004 November 2004 FX35/FX45

through 15A fuse [No. 1, located in the fuse block (J/B)]

to BCM terminal 38, and

through 10A fuse [No. 12, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 22

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 7.
Ground is supplied

to BCM terminals 49 and 52, and

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 5, 6 and 15

through body grounds M35, M45 and M85.
NOTE:
When ignition key warning chime, light warning chime, and seat belt warning chime should be performed at
the same time, the priorities for each chime are the following.
1. Seat belt warning chime
2. Light warning chime
3. Ignition key warning chime
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the ignition switch, and the ignition switch OFF or ACC, when driver's door open, the
warning chime will sound.
Power is supplied

through key switch terminal 1

to BCM terminal 37.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to unified meter and A/C amp.
with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination meter
with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives key warning signal, it sounds warning chime.
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the ignition switch, and the ignition switch LOCK or ACC, when driver's door open,
the warning chime will sound.
Power is supplied

through key switch and ignition knob switch terminal 4

to BCM terminal 37.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to unified meter and A/C amp.
with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination meter
with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives key warning signal, it sounds warning chime.
When Intelligent Key Is Carried With The Driver
With the ignition knob is in LOCK (push switch ON) or ACC, when driver's door open, the warning chime will
sound.
Power is supplied

through key switch and ignition knob switch terminal 2

DI-70
WARNING CHIME
Revision: 2004 November 2004 FX35/FX45
3. CHECK FRONT DOOR SWITCH (DRIVER SIDE)
Check front door switch (driver side).
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion of BCM" .
NG >> Replace front door switch (driver side).
Key Warning Chime Does Not Operate (Without Intelligent Key)AKS005NW
1. CHECK FUSE
Check if the key switch 15A fuse [No. 22, located in the fuse block (J/B)] is blown. Refer to DI-59, "
Wiring Dia-
gram — CHIME —" .
Is the fuse blown?
YES >> Replace fuse. Be sure to repair the cause of malfunction before installing new fuse.
NO >> GO TO 2.
2. CHECK WARNING CHIME OPERATION
Check the chime under conditions in exception of key warning chime (without Intelligent Key) operation.
Does warning chime sound?
YES >> GO TO 3.
NO >> Go to DI-68, "
All Warnings Are Not Operated" or DI-69, "Key Warning Chime and Light Warning
Chime Does Not Operate (Seat Belt Warning Chime Does Operate)" . When driver side door
switch is released: Continuity should exist.
When driver side door
switch is pushed: Continuity should not exist.
PKIA3718E

REAR VIEW MONITOR
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Revision: 2004 November 2004 FX35/FX45
REAR VIEW MONITORPFP:28260
System DescriptionAKS0068D

The rear view monitor is equipped to check the rearward of the vehicle with display when A/T selector
lever is in reverse position.

The lines of vehicle sides and the distance from the rear end of the vehicle are provided on display as a
guide. It allows the driver to know the distance between the vehicle and a rearward object, and the width
of the vehicle much easier.
POWER SUPPLY AND GROUND
Power is supplied at all time

through 10A fuse [No. 19, located in fuse block (J/B)]

to rear view camera control unit terminal 1.
When ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to rear view camera control unit terminal 2.
When ignition switch is in ON or START position, power is supplied

through 10A fuse (No. 83, located in IPDM E/R)

to back-up lamp relay terminals 2 and 3.
Ground is supplied

to rear view camera control unit terminal 3

through grounds M35, M45 and M85.
AV COMMUNICATION LINE
Rear view camera control unit is connected to the following units with AV communication line. Each unit trans-
mits/receives data with AV communication line.

NAVI control unit

Display

Display control unit

A/C and AV switch
REAR VIEW CAMERA OPERATION
When A/T selector lever is reverse position, power is supplied

through back-up lamp relay terminal 1

to TCM terminal 7.
Then back-up lamp relay is energized,

from back-up lamp relay terminal 5

to rear view camera control unit terminal 4.
Then, rear view camera control unit is sent camera ON signal

through rear view camera control unit terminal 8

to rear view camera terminal 1.
An image taken by rear view camera is sent

through rear view camera terminals 3 and 4

to rear view camera control unit terminals 10 and 9.
Then an image is sent

through rear view camera control unit terminals 12 and 14

to the display terminals 15 and 16.
An image of rear view will be projected on the display.
Side Distance Guideline
When A/T selector lever is in reverse position, rear view camera control unit is sent rear view camera guideline
image

through rear view camera control unit terminals 12 and 14

POWER SUPPLY AND GROUND CIRCUIT
EC-137
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Revision: 2004 November 2004 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureABS00CGM
1. INSPECTION START
Start engine.
Is engine running?
Ye s o r N o
Ye s > > G O T O 8 .
No >> GO TO 2.
2. CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF and then ON.
2. Check voltage between ECM terminal 109 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Fuse block (J/B) connector M1

15A fuse

Harness for open or short between ECM and fuse
>> Repair harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]

Idle speedBody ground
109 W/L Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
111 W / BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]

More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
11 5
11 6B/R
B/WECM ground[Engine is running]

Idle speedBody ground
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
Voltage: Battery voltage
MBIB0015E