fuse INFINITI FX35 2005 Workshop Manual

DI-6
COMBINATION METERS
Revision: 2005 July 2005 FX
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. (Trip B operates the same way.)

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 grounds M35, M45 and M85,

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

through grounds M35, M45 and M85.
PKIA2382E
SKIA4817E

COMBINATION METERS DI-17
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Revision: 2005 July 2005 FX
Symptom Chart 1 AKS005MT
Symptom Chart 2AKS005MU
Trouble phenomenon Possible cause
Indication is irregular for the speedometer and odo/trip meter. Refer to DI-20, "
Vehicle Speed Signal Inspection" .
Tachometer indication is malfunction. Refer to DI-21, "
Engine Speed Signal Inspection" .
Water temperature gauge indication is malfunction. Refer to DI-21, "
Engine Coolant Temperature Signal Inspection" .
Fuel gauge indication is malfunction. Refer to DI-22, "
Fuel Level Sensor Signal Inspection" .
Low-fuel warning lamp indication is irregular.
A/T position indicator is malfunction. Refer to DI-56, "
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-34, "
DTC [U1000] CAN Communication Circuit" .
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 - 8 V for about 2
seconds) or 10A fuse [No. 19, located in the fuse block (J/
B)] is disconnected.
METER COMM CIRC [B2202] Inspect the communication line
between combination meter and
unified meter and A/C amp. Refer to
DI-34, "
DTC [B2202] Meter Communication Circuit" .
VEHICLE SPEED CIRC [B2205] Inspect the vehicle speed input
signal. Refer to
DI-37, "
DTC [B2205] Vehicle Speed Circuit" .
CAUTION:
Even when there is no malfunction on speed signal sys-
tem, malfunction may be misinterpreted when battery has
low voltage (when maintaining 7 - 8 V for about 2 seconds).

DI-18
COMBINATION METERS
Revision: 2005 July 2005 FX
Power Supply and Ground Circuit InspectionAKS005MS
1. CHECK FUSE
Check for blown combination meter and unified meter and A/C amp. fuses.
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. Check voltage between combination meter harness connector M20 terminals 8 (R/W), 7 (G/Y) and ground.
2. Check voltage between unified meter and A/C amp. harness connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

Harness between combination meter and fuse

Harness between unified meter and A/C amp. and fuse
Unit Power source Fuse No.
Combination meter Battery 19
Unified meter and A/C amp.
Unified meter and A/C amp Ignition switch ACC or ON 10, 11
Combination meter Ignition switch ON or START 14
Unified meter and A/C amp. Ignition switch ON or START 12
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal
(Wire color)
M20 8 (R/W)
Ground Battery voltage Battery voltage
7 (G/Y) 0 V Battery voltage
PKIB3569E
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
(Wire color)
M56 21 (R/W)
Ground Battery
voltage Battery
voltage Battery
voltage
22 (G/R) 0 V 0 V Battery
voltage
M57 46 (L/W) 0 V Battery
voltage Battery
voltage
PKIB3570E

DI-32
UNIFIED METER AND A/C AMP
Revision: 2005 July 2005 FX
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-diagnostic 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... Reference
page
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 - 8 V
for about 2 seconds) or 10A fuse [No. 19, located in the fuse block (J/B)] is dis-
connected. DI-34
METER COMM CIRC [B2202]
Malfunction is detected in communication of between combination meter and unified
meter and A/C amp. DI-34
VEHICLE SPEED CIRC [B2205] When an erroneous speed signal is input for 1 second.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about
2 seconds). DI-37
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.

DI-58
WARNING CHIME
Revision: 2005 July 2005 FX
WARNING CHIMEPFP:24814
System DescriptionAKS005NL
FUNCTION
Power is supplied at all times

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

to BCM terminal 55,

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

to key switch and ignition knob switch terminal 3 (with Intelligent Key)

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 block (with Intelligent Key)]

to key switch and ignition knob switch terminal 1,

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 is in ON or START position, power is supplied

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

to BCM terminal 38,

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,

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

to combination meter terminals 5, 6 and 15

through 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 is
opened, 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.

DI-68
WARNING CHIME
Revision: 2005 July 2005 FX
Trouble DiagnosisAKS005NR
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the malfunction symptom or customer complaint.
2. Understand operation description and function description. Refer to DI-58, "
System Description" .
3. Perform the Preliminary Check. Refer to DI-68, "
PRELIMINARY CHECK" .
4. Select “METER A/C AMP” on CONSULT-II, and perform self-diagnosis of unified meter and A/C amp. Refer to DI-31, "
CONSULT-II Function (METER A/C AMP)" . When no malfunction detected, go to next
step 5. When malfunction detected, go to DI-17, "
Symptom Chart 2" in “COMBINATION METER”.
5. Check symptom and repair or replace the cause of malfunction.
6. Does the warning chime operate normally? If so, GO TO 7. If not, GO TO 5.
7. INSPECTION END
PRELIMINARY CHECK
Inspection for Power Supply and Ground Circuit
1. CHECK FUSE AND FUSIBLE LINK
Check BCM fuses and fusible link for blown-out.
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 POWER SUPPLY CIRCUIT
Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between BCM and fuse or fusible link.
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START 1
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal
(Wire color)
M4 55 (G)
Ground Battery voltage Battery voltage
42 (L/R)
M3 38 (W/L) 0 V Battery voltage
PKIB3988E

WARNING CHIME DI-73
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3. CHECK FRONT DOOR SWITCH (DRIVER SIDE)
Check front door switch (driver side).
OK or NG
OK >> Replace BCM. Refer to BCS-16, "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-63, "
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-71, "
All Warnings Are Not Operated" or DI-72, "Key Warning Chime and Light Warning
Chime Does Not Operate (Seat Belt Warning Chime Does Operate)" .
1 – Door switch case ground
When driver side door
switch is released : Continuity should exist.
When driver side door
switch is pushed : Continuity should not exist.
PKIA3718E

WARNING CHIME DI-75
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5. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal 37 (B/W) and key switch harness connector M23 terminal 1 (B/
W).
3. Check continuity between BCM harness connector M3 terminal 37 (B/W) and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M23 terminal
2 (L/R) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check harness between key switch and fuse.
Key Warning Chime Does Not Operate (With Intelligent Key, When Mechanical
Key Is Used)
AKS0079U
1. CHECK FUSE
Check if the key switch and ignition knob switch 10A fuse (No. 38, located in the fuse and fusible link box) is
blown. Refer to DI-63, "
Wiring Diagram — 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 (when mechanical key is used) opera-
tion.
Does warning chime sound?
YES >> GO TO 3.
NO >> Go to DI-71, "
All Warnings Are Not Operated" or DI-72, "Key Warning Chime and Light Warning
Chime Does Not Operate (Seat Belt Warning Chime Does Operate)" .
37 (B/W) – 1 (B/W) : Continuity should exist.
37 (B/W) – Ground : Continuity should not exist.
PKIB3833E
2 (L/R) – Ground : Battery voltage
SKIA5051E

DI-76
WARNING CHIME
Revision: 2005 July 2005 FX
3. CHECK BCM INPUT SIGNAL
With CONSULT-ll
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “KEY ON SW” when the key is operated.
Without CONSULT-ll
Check voltage between BCM harness connector M3 terminal 37 (B/
W) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> GO TO 4.
4. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Disconnect key switch and ignition knob switch connector.
2. Check voltage between key switch and ignition knob switch har- ness connector M22 terminal 3 (L/R) and ground.
OK or NG
OK >> GO TO 5.
NG >> Check harness between key switch and ignition knob switch and fuse.
“KEY ON SW”
When key is inserted to ignition
key cylinder : ON
When key is removed from
ignition key cylinder : OFF
SKIA1960E
37 (B/W) – Ground
When key is inserted to ignition
key cylinder : Approx. 12 V
When key is removed from
ignition key cylinder : Approx. 0 V
SKIA5048E
3 (L/R) – Ground : Battery voltage
SKIA5063E

DI-78
WARNING CHIME
Revision: 2005 July 2005 FX
3. CHECK INTELLIGENT KEY UNIT INPUT SIGNAL
With CONSULT-ll
1. Select “INTELLIGENT KEY”.
2. With “DATA MONITOR”, confirm “PUSH SW” when the ignition knob switch is operated. Refer to BL-119, "
CONSULT-II Func-
tions" .
Without CONSULT-ll
Check voltage between Intelligent Key unit harness connector M34
terminal 27 (L/W) and ground.
OK or NG
OK >> Replace Intelligent Key unit. Refer to BL-151, "Removal
and Installation of Intelligent Key Unit" .
NG >> GO TO 4.
4. CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Disconnect key switch and ignition knob switch connector.
2. Check voltage between key switch and ignition knob switch har- ness connector M22 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 5.
NG >> Check harness between key switch and ignition knob
switch and fuse.
“PUSH SW”
When ignition knob switch
is pushed : ON
When ignition knob switch
is withdrawn : OFF
SKIA5064E
27 (L/W) – Ground
When ignition knob switch
is pushed : Approx. 12 V
When ignition knob switch
is withdrawn : Approx. 0 V
SKIA5065E
1 (L/R) – Ground : Battery voltage
SKIA5068E