2005 INFINITI FX35 battery

DI-12
COMBINATION METERS
Revision: 2005 July 2005 FX
Terminals and Reference Value for Combination MeterAKS005MM
Terminal
No. Wire
color Item Condition
Reference value
Ignition
switch Operation or condition
1R/G Vehicle speed signal
(8-pulse) ON Speedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5 V due
to specifications (connected units).
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
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
19 R/B Illumination signal ON Lighting switch ON, then oper-
ate the illumination control
switch. When brightness level is
midway.
Lighting switch OFF Approx. 0 V
25 — Illumination control switch (–) OFF Illumination control switch (–)
is pushed. Approx. 0 V
Illumination control switch (–)
is released. Approx. 5 V
26 — Illumination control switch (+) OFF Illumination control switch (+)
is pushed. Approx. 0 V
Illumination control switch (+)
is released. Approx. 5 V
27 — Odo/trip meter and illumina-
tion control switch ground OFF — Approx. 0 V
PKIA1935E
SKIA3361E
SKIA3362E
SKIA8970E

COMBINATION METERS DI-13
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Revision: 2005 July 2005 FX
Terminals and Reference Value for Unified Meter and A/C Amp.AKS005MN
35 — Trip reset switch OFF Trip reset switch is pushed Approx. 0 V
Trip reset switch is released Approx. 5 V
36 — Trip transfer switch OFF Trip transfer switch is pushed Approx. 0 V
Trip transfer switch is released Approx. 5 V
Te r m i n a l
No. Wire
color Item Condition
Reference value
Ignition
switch Operation or condition
Terminal
No. Wire
color Item Condition
Reference value
Ignition
switch Operation or condition
1 L CAN H — — —
9PU TX communication line (To
combination meter) ON —
11 R C A N L — — —
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
26 R/G Vehicle speed signal
(8-pulse) ON Speedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5 V due to
specifications (connected units).
28 W/B Fuel level sensor signal — — Refer to
DI-25, "
CHECK FUEL
LEVEL SENSOR UNIT" .
29 B Ground (for power) ON — Approx. 0 V
30 B Ground ON — Approx. 0 V
36 B/W Fuel level sensor ground ON — Approx. 0 V
46 L/W Ignition switch ACC or ON ACC — Battery voltage
SKIA3362E
SKIA3361E
PKIA1935E

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.

WARNING CHIME DI-59
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Revision: 2005 July 2005 FX
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 is
opened, 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
When the ignition knob is in LOCK (push switch ON) or ACC, when driver's door is opened, the warning chime
will sound.
Power is supplied

through key switch and ignition knob switch terminal 2

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 when the ignition knob is in LOCK (push switch OFF) [with
Intelligent Key], the driver's door is opened, and the lighting switch is 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

DI-66
WARNING CHIME
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAKS005NO
Te r m i n a l
No. Wire
color Item Measuring condition
Reference value
Ignition
switch Operation or condition
2 GY Combination switch input 5 ON Lighting, turn, wiper OFF
Wiper dial position 4
3 L/B Combination switch input 4 ON Lighting, turn, wiper OFF
Wiper dial position 4
4 PU/W Combination switch input 3
5 Y/R Combination switch input 2
6 SB Combination switch input 1
32 GY/R Combination switch output 5 ON Lighting, turn, wiper OFF
Wiper dial position 4
33 G Combination switch output 4 ON Lighting, turn, wiper OFF
Wiper dial position 4
34 W/B Combination switch output 3
35 W/G Combination switch output 2
36 W/R Combination switch output 1
37 B/W Key switch signal OFF Key is removed Approx. 0 V
Key is inserted Battery voltage
38 W/L Ignition switch ON or START ON — Battery voltage
39 L CAN H OFF — —
40 R CAN L OFF — —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52
55 G Battery power supply OFF — Battery voltage
62 W Front door switch (driver side) OFF When driver side door is
opened (Door switch ON) Approx. 0 V
When driver side door is
closed (Door switch OFF) Approx. 12 V
PKIB3468E
PKIB3469E
PKIB3470E
PKIB3471E

WARNING CHIME DI-67
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Revision: 2005 July 2005 FX
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