2004 INFINITI FX35 ignition

WARNING LAMPS
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Revision: 2004 November 2004 FX35/FX45
5. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the IPDM E/R connector and the oil pressure switch connector.
3. Check continuity between IPDM E/R harness connector E9 ter-
minal 57 (BR) and oil pressure switch harness connector F1 ter-
minal 1 (BR).
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK OIL PRESSURE SWITCH
Check oil pressure switch. Refer to DI-50, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-30, "Removal and Installation of IPDM E/R" .
NG >> Replace oil pressure switch.
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)AKS005NG
NOTE:
For oil pressure inspection, refer to LU-8, "
OIL PRESSURE CHECK" .
1. CHECK IPDM E/R OUTPUT SIGNAL
1. Disconnect the oil pressure switch connector.
2. Turn ignition switch ON.
3. Check voltage between oil pressure switch harness connector
F1 terminal 1 (BR) and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-50, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> Replace IPDM E/R.
NG >> Replace oil pressure switch.Continuity should exist.
SKIA5011E
Approx. 12V
SKIA5012E

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

WARNING CHIME
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to Intelligent Key unit terminal 27.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM sends front door switch signal to Intelligent Key unit with CAN communication line.
Intelligent Key unit detects ignition knob return is forgotten, 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.
LIGHT WARNING CHIME
With the key removed from the ignition switch or with the ignition knob is in LOCK (push switch OFF) [with
Intelligent Key], the driver's door open, and the lighting switch in ON position, the warning chime will sound.
[Except when headlamp battery saver control operates (for 5 minutes after ignition switch is turned to OFF or
ACC position) and headlamps do not illuminate.]
Signal is supplied

from combination switch (lighting switch) terminals 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10

to BCM terminals 2, 3, 4, 5, 6, 32, 33, 34, 35 and 36.
NOTE:
BCM detected lighting switch in 1st or 2nd position, refer to BCS-3, "
COMBINATION SWITCH READING
FUNCTION" .
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 headlamps are illuminated, and sends light warning signal to unified meter and A/C amp. with
CAN communication line. Unified meter and A/C amp. sends light warning signal to combination meter with
communication line between unified meter and A/C amp. and combination meter.
When combination meter receives light warning signal, it sounds warning chime.
SEAT BELT WARNING CHIME
With ignition switch turned ON and seat belt unfastened [seat belt buckle switch (driver side) ON], warning
chime will sound for approximately 6 seconds.
Ground is supplied

to combination meter terminal 9

through seat belt buckle switch (driver side) terminal 60.
Seat belt buckle switch (driver side) terminal 61A is grounded through body grounds B15 and B45.
Combination meter sends seat belt unfastened [seat belt buckle switch (driver side) ON] signal to unified
meter and A/C amp. with communication line between unified meter and A/C amp. and combination meter.
BCM receives seat belt unfastened [seat belt buckle switch (driver side) ON] signal from unified meter and A/
C amp. with CAN communication line, and sends seat belt warning signal to unified meter and A/C amp. with
CAN communication line. Unified meter and A/C amp. sends seat belt warning signal to combination meter
with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives seat belt warning signal, it sounds warning chime.
CAN Communication System DescriptionAKS007Z2
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS007YY
Refer to LAN-6, "CAN Communication Unit" in “LAN SYSTEM”.

DI-62
WARNING CHIME
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for BCMAKS005NO
Te r m i n a l
No.Wire
colorItemMeasuring condition
Reference value
Ignition
switchOperation or condition
2 GY Combination switch input 5 ONLighting, turn, wiper OFF
Wiper dial position 4
3 L/B Combination switch input 4 ONLighting, turn, wiper OFF
Wiper dial position 4
4 PU/W Combination switch input 3 ONLighting, turn, wiper OFF
Wiper dial position 4
5 Y/R Combination switch input 2
ONLighting, turn, wiper OFF
Wiper dial position 4
6 SB Combination switch input 1
32 GY/R Combination switch output 5 ONLighting, turn, wiper OFF
Wiper dial position 4
33 G Combination switch output 4 ONLighting, turn, wiper OFF
Wiper dial position 4
34 W/B Combination switch output 3 ONLighting, turn, wiper OFF
Wiper dial position 4
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SKIA5292E
SKIA5291E

WARNING CHIME
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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
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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
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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
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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
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SKIA3362E

WARNING CHIME
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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.
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