pg power INFINITI FX35 2004 Service Manual

DI-14
COMBINATION METERS
Revision: 2004 November 2004 FX35/FX45
2. CHECK WARNING LAMP ILLUMINATION
Turn ignition switch ON. (Engine stopped)
Do warning lamps (such as malfunction indicator lamp and oil pressure warning lamp) illuminate?
YES >> GO TO 3.
NO >> Check ignition power supply system of combination meter. Refer to DI-15, "
Power Supply and
Ground Circuit Inspection" .
3. CHECK SELF-DIAGNOSIS OPERATION OF COMBINATION METER
Perform combination meter self-diagnosis. Refer to DI-12, "
SELF-DIAGNOSIS FUNCTION" .
Does self-diagnosis function operate?
YES >> GO TO 4.
NO >> Check battery power supply of combination meter and ground system. Refer to DI-15, "
Power
Supply and Ground Circuit Inspection" .
4. CHECK ODO/TRIP METER OPERATION
Check odo/trip meter segment, A/T indicator or ICC system display segment.
Do all segments illuminate?
YES >> GO TO 5.
NO >> Replace combination meter.
5. CHECK LOW-FUEL WARNING LAMP ILLUMINATION CONFIRMATION
During low-fuel warning lamp check, confirm illumination of low-fuel warning lamp.
OK or NG
OK >> GO TO 6.
NG >> Replace combination meter.
6. CHECK COMBINATION METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.
OK or NG
OK >> Go to DI-16, "Symptom Chart 1" .
NG >> Replace combination meter.
SKIA6170E
Condition of odo/trip meter switch Low-fuel warning lamp
Pushed Does not illuminate.
Released Illuminates.
SKIA4831E

COMBINATION METERS
DI-15
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Revision: 2004 November 2004 FX35/FX45
Power Supply and Ground Circuit InspectionAKS005MS
1. CHECK FUSE
Check for blown combination meter and unified meter and A/C amp. fuses.
Refer to DI-9, "Wiring Diagram — METER —" .
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. Disconnect the combination meter connector and the unified meter and A/C amp. connector.
2. Check voltage between combination meter harness connector
terminals and ground.
3. 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 for open between combination meter and fuse

Harness for open 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
ConnectorTe r m i n a l
(Wire color)
M208 (R/W)
GroundBattery voltage Battery voltage
7 (G/Y) 0V Battery voltage
SKIA4832E
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
M5621 (R/W)
GroundBattery
voltageBattery
voltageBattery
voltage
22 (G/R) 0V 0VBattery
voltage
M57 46 (L/W) 0VBattery
voltageBattery
voltage
SKIA5201E

WARNING CHIME
DI-55
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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

WARNING CHIME
DI-63
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Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for Unified Meter and A/C Amp. AKS005NP
35 W/G Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 W/R Combination switch output 1
37 B/W Key switch signal OFFKey is removed Approx. 0V
Key is inserted Battery voltage
38 W/L Ignition switch ON or START 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. 0V
52
55 G Battery power supply OFF — Battery voltage
62 W Front door switch (driver side) OFFWhen driver side door is
opened (Door switch ON)Approx. 0V
When driver side door is
closed (Door switch OFF)Approx. 12V Terminal
No.Wire
colorItemMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA5292E
Terminal
No.Wire
colorItem Measuring condition
Reference value
Ignition
switchOperation or condition
1 L CAN H — — —
9PUTX communication line (To
combination meter)ON —
11 R C A N L — — —
19 L/BRX communication line
(From combination meter)ON —
21 R/W Battery power supply OFF — Battery voltage
22 G/R Ignition switch ON or START ON — Battery voltage
29 B Ground (power)
ON — Approx. 0V
30 B Ground
SKIA3362E
SKIA3361E

DI-64
WARNING CHIME
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for Combination MeterAKS005NQ
How to Proceed With Trouble DiagnosisAKS005NR
1. Confirm the malfunction symptom or customer complaint.
2. Understand operation description and function description. Refer to DI-55, "
System Description" .
3. Perform the Preliminary Check. Refer to DI-65, "
Preliminary Check" .
4. Start engine.
5. 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" .
6. After erasing the self-diagnostic results, perform self-diagnosis again. When no malfunction detected, go
to next step 7. When malfunction detected, go to DI-16, "
Symptom Chart 2" in “COMBINATION METER”.
7. Check symptom and repair or replace the cause of malfunction.
8. Does the warning chime operate normally? If so, go to 9. If not, go to 7.
9. INSPECTION END
Terminal
No.Wire
colorItem Measuring condition
Reference value
Ignition
switchOperation or condition
5
B Ground ON — Approx. 0V
6
7 G/Y Ignition switch ON or START ON — Battery voltage
8 R/W Battery power supply OFF — Battery voltage
9LG/RSeat belt buckle switch
(driver side) ONUnfastened (ON) Approx. 0V
Fastened (OFF) Approx. 12V
13 L/BTX communication line (To
unified meter and A/C amp.)ON —
14 PURX communication line
(From unified meter and A/C
amp.)ON —
15 B Ground ON — Approx. 0V
SKIA3361E
SKIA3362E

WARNING CHIME
DI-65
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Revision: 2004 November 2004 FX35/FX45
Preliminary CheckAKS005NS
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSE AND FUSIBLE LINK
Check BCM fuses and fusible link for blown-out.
Refer to DI-59, "Wiring Diagram — CHIME —" .
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
1. Disconnect BCM connector.
2. Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between BCM and fuse or fusible link.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. 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.
BCMBatteryM
22
Ignition switch ON or START 1
Terminals Ignition switch position
(+)
(–) OFF ACC ON
ConnectorTerminal
(Wire color)
M455 (G)
GroundBattery
voltageBattery
voltageBattery
voltage
42 (L/R)Battery
voltageBattery
voltageBattery
voltage
M3 38 (W/L) 0V 0VBattery
voltage
Continuity should exist.
SKIA5041E

DI-72
WARNING CHIME
Revision: 2004 November 2004 FX35/FX45
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-15, "Removal and Installa-
tion of BCM" .
NG >> Check harness for open or short 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-59, "
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-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)" . Continuity should exist.
Continuity should not exist.
SKIA5050E
Battery voltage should exist.
SKIA5051E

WARNING CHIME
DI-73
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Revision: 2004 November 2004 FX35/FX45
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-15, "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.
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 for open or short between key switch
and ignition knob switch and fuse.
5. CHECK KEY SWITCH
Check continuity between key switch and ignition knob switch con-
nector M22 terminals 3 and 4.
OK or NG
OK >> GO TO 6.
NG >> Replace key switch and ignition knob switch.When key is inserted to ignition
key cylinder: KEY ON SW ON
When key is removed from
ignition key cylinder: KEY ON SW OFF
SKIA1960E
When key is inserted to ignition
key cylinder: Approx. 12V
When key is removed from
ignition key cylinder: Approx. 0V
SKIA5048E
Battery voltage should exist.
SKIA5063E
When key is inserted to
ignition key cylinder: Continuity should exist.
When key is removed
from ignition key cylinder: Continuity should not
exist.
SKIA5060E

WARNING CHIME
DI-75
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Revision: 2004 November 2004 FX35/FX45
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-114, "
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-146, "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.
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 for open or short between key switch
and ignition knob switch and fuse.
5. CHECK IGNITION KNOB SWITCH
Check continuity between key switch and ignition knob switch con-
nector M22 terminals 1 and 2.
OK or NG
OK >> GO TO 6.
NG >> Replace key switch and ignition knob switch.When ignition knob switch
is pushed: PUSH SW ON
When ignition knob switch
is withdrawn: PUSH SW OFF
SKIA5064E
When ignition knob switch
is pushed: Approx. 12V
When ignition knob switch
is withdrawn: Approx. 0V
SKIA5065E
Battery voltage should exist.
SKIA5068E
When ignition knob
switch is pushed: Continuity should exist.
When ignition knob
switch is withdrawn: Continuity should not exist.
SKIA5066E