2005 INFINITI FX35 Drive belt

DI-60
WARNING CHIME
Revision: 2005 July 2005 FX

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-30, "CAN Communication Unit" in “LAN SYSTEM”.

WARNING CHIME DI-67
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Terminals and Reference Value for Unified Meter and A/C Amp. AKS005NP
Terminals and Reference Value for Combination MeterAKS005NQ
Terminal
No. Wire
color Item Measuring condition
Reference value
Ignition
switch Operation or condition
1 L CAN H OFF — —
9PU TX communication line (To
combination meter) ON —
11 R C A N L O F F — —
19 L/B RX 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. 0 V
30 Ground
SKIA3362E
SKIA3361E
Terminal
No. Wire
color Item Measuring condition
Reference value
Ignition
switch Operation or condition
5 B Ground ON — Approx. 0 V
6
7 G/Y Ignition switch ON or START ON — Battery voltage
8 R/W Battery power supply OFF — Battery voltage
9 LG/R Seat belt buckle switch
(driver side) ON Unfastened (ON) Approx. 0 V
Fastened (OFF) Approx. 12 V
13 L/B TX communication line (To
unified meter and A/C amp.) ON —
14 PU RX communication line
(From unified meter and A/C
amp.) ON —
15 B Ground ON — Approx. 0 V
SKIA3361E
SKIA3362E

DI-70
WARNING CHIME
Revision: 2005 July 2005 FX
3. Touch “BCM” on “SELECT SYSTEM” screen. If “BCM” is not
indicated, go to GI-39, "
CONSULT-II Data Link Connector (DLC)
Circuit" .
4. Touch “BUZZER” or “BCM”.
5. Select “DATA MONITOR”, “ACTIVE TEST” or “SELF-DIAG RESULTS”.
DATA MONITOR
Operation Procedure
1. Touch “BUZZER” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch “ALL SIGNALS” or “SELECTION FROM MENU” on “DATA MONITOR” screen.
4. If “SELECTION FROM MENU” is selected, touch the desired monitor item. If “ALL SIGNALS” is selected, all items required to control are monitored.
5. Touch “START”.
6. During monitoring, touching “RECORD” can start recording the monitored item status.
Display Item List
ACTIVE TEST
Operation Procedure
1. Touch “BUZZER” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch the item to be tested, and check the operation.
4. During the operation check, touching “OFF” deactivates the operation.
PKIB1957E
PKIB1958E
ALL SIGNALS Monitors main items.
SELECTION FROM MENU Selects and monitors items.
Monitored item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
KEY ON SW Indicates [ON/OFF] condition of key switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch (driver side).
LIGHT SW 1ST Indicates [ON/OFF] condition of lighting switch.
BUCKLE SW Indicates [ON/OFF] condition of seat belt switch (driver side).

DI-72
WARNING CHIME
Revision: 2005 July 2005 FX
Key Warning Chime and Light Warning Chime Does Not Operate (Seat Belt
Warning Chime Does Operate)
AKS005NV
1. CHECK BCM INPUT SIGNAL
With CONSULT-ll
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “DOOR SW-DR” when the driver side door is operated.
Without CONSULT-ll
Check voltage between BCM harness connector B14 terminal 62
(W) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> GO TO 2.
2. CHECK FRONT DOOR SWITCH (DRIVER SIDE) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and front door switch (driver side) connector.
3. Check continuity between BCM harness connector B14 terminal 62 (W) and front door switch (driver side) harness connector
B26 terminal 1 (W).
4. Check continuity between BCM harness connector B14 terminal 62 (W) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector. “DOOR SW-DR”
When driver side door is opened : ON
When driver side door is closed : OFF
SEL502W
62 (W) – Ground
When driver side door is opened : Approx. 0 V
When driver side door is closed : Approx. 12 V
SKIA8220E
62 (W) – 1 (W) : Continuity should exist.
62 (W) – Ground : Continuity should not exist.
SKIA5046E

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-77
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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.
6. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal 37 (B/W) and key switch and ignition knob switch harness con-
nector M22 terminal 4 (B/W).
3. Check continuity 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 >> Repair harness or connector.
Key Warning Chime Does Not Operate (With Intelligent Key, When Intelligent
Key Is Carried With The Driver)
AKS0079V
1. CHECK WARNING CHIME OPERATION
Check the chime under conditions in exception of key warning chime (when Intelligent Key is carried with the
driver) operation.
Does warning chime sound?
YES >> GO TO 2.
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)" .
2. CHECK INTELLIGENT KEY UNIT SELF-DIAGNOSIS
Perform the Intelligent Key unit self-diagnosis. Refer to BL-119, "
CONSULT-II Functions" .
OK or NG
OK >> GO TO 3.
NG >> Check the applicable parts. 3 – 4
When key is inserted to
ignition key cylinder : Continuity should exist.
When key is removed
from ignition key cylinder : Continuity should not
exist.
SKIA5060E
37 (B/W) – 4 (B/W) : Continuity should exist.
37 (B/W) – Ground : Continuity should not exist.
PKIB3578E

DI-80
WARNING CHIME
Revision: 2005 July 2005 FX
Seat Belt Warning Chime Does Not OperateAKS005NX
1. CHECK WARNING CHIME OPERATION
Check the chime under conditions in exception of seat belt warning chime operation.
Does warning chime sound?
YES >> GO TO 2.
NO >> Go to DI-71, "
All Warnings Are Not Operated" .
2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP”.
2. With “DATA MONITOR” of “METER A/C AMP”, confirm “SEAT BELT W/L” when the seat belt is operated.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> GO TO 3.
3. CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector M20 terminal 9 (LG/R) and ground.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 4.
4. CHECK SEAT BELT BUCKLE SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat belt buckle switch (driver side) connector.
3. Check continuity between seat belt buckle switch (driver side) connector B160 terminals 60 and 61A.
OK or NG
OK >> GO TO 5.
NG >> Replace seat belt buckle switch (driver side). “SEAT BELT W/L”
When seat belt is fastened : OFF
When seat belt is unfastened : ON
SKIA6728E
9 (LG/R) – Ground
When seat belt is fastened : Approx. 12 V
When seat belt is unfastened : Approx. 0 V
SKIA5052E
60 – 61A
When seat belt is
fastened : Continuity should not exist.
When seat belt is
unfastened : Continuity should exist.
SKIA5053E

WARNING CHIME DI-81
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5. CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Disconnect combination meter connector.
2. Check continuity between combination meter harness connector M20 terminal 9 (LG/R) and seat belt buckle switch (driver side)
harness connector B160 terminal 60 (R/B).
3. Check harness continuity between combination meter harness connector M20 terminal 9 (LG/R) and ground.
OK or NG
OK >> Check seat belt buckle switch (driver side) ground cir- cuit.
NG >> Repair harness or connector. 9 (LG/R) – 60 (R/B) : Continuity should exist.
9 (LG/R) – Ground : Continuity should not exist.PKIB3579E