2008 INFINITI FX35 ignition

UNIFIED METER AND A/C AMPDI-29
< SERVICE INFORMATION >
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NOTE:
Monitored item that does not match the vehicle is deleted from the display automatically.
*1: It dose not change when fastening or unfastening the passenger seat belt.
*2: Monitor keeps indicating “off” when brake warning lamp is on by the parking brake operation or low brake fluid level.
Power Supply and Gro und Circuit InspectionINFOID:0000000001328459
1.CHECK FUSE
Check for blown unified meter and A/C amp. fuses.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
Schematic".
2.CHECK POWER SUPPLY CIRCUIT
OIL W/L [On/Off] X Indicates [On/Off] condition of oil pressure warning lamp.
VDC/TCS IND [On/Off] X Indicates [On/Off] condition of VDC OFF indicator lamp.
ABS W/L [On/Off] X Indicates [On/Off] condition of ABS warning lamp.
SLIP IND [On/Off] X Indicates [On/Off] condition of SLIP indicator lamp.
BRAKE W/L [On/Off]
*2X Indicates [On/Off] condition of brake warning lamp.
KEY G W/L [On/Off] X Indicates [On/Off] condition of key warning lamp (green).
KEY R W/L [On/Off] X Indicates [On/Off] condition of key warning lamp (red).
KEY KNOB W/L [On/Off] X Indicates [On/Off] condition of key knob warning lamp.
M RANGE SW [On/Off] X X Indicates [On/Off] condition of manual mode range switch.
NM RANGE SW [On/Off] X X Indicates [On/Off] condition of except for manual mode range
switch.
AT SFT UP SW [On/Off] X X Indicates [On/Off] condition of A/T shift-up switch.
AT SFT DWN SW [On/Off] X X Indicates [On/Off] condition of A/T shift-down switch.
BRAKE SW [On/Off] X Indicates [On/Off] condition of brake switch (stop lamp switch).
AT-M IND [On/Off] X X Indicates [On/Off] condition of A/T manual mode indicator.
AT-M GEAR [5-1] X X Indicates [5-1] condition of A/T manual mode gear position.
P RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift P range indicator.
R RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift R range indicator.
N RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift N range indicator.
D RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift D range indicator.
AT CHECK W/L X Indicates [On/Off] cond ition of AT CHECK warning lamp.
CRUISE IND [On/Off] X Indicates [On/Off] condition of CRUISE indicator lamp.
SET IND [On/Off] X Indicates [On/Off] condition of SET indicator lamp.
CRUISE W/L [On/Off] X Indicates [On/Of f] condition of ICC warning lamp.
4WD LOCK SW [On/Off] X This item is not used for this model. “off” is always displayed.
4WD LOCK IND [On/Off] X This item is not used for this model. “off” is always displayed.
4WD W/L [On/Off] X Indicates [On/Off] condition of AWD warning lamp.
RR COMB STATE [OK/NG] X Indicates [OK/NG] condition of rear combination lamp circuit. Display item [Unit]
MAIN
SIGNALS SELECTION
FROM MENU Contents
Power source Fuse No.
Battery power supply 19 ACC power supply 10, 11
Ignition power supply 12
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-30
< SERVICE INFORMATION >
UNIFIED METER AND A/C AMP
Check voltage between unified meter and A/C amp. harness con-
nector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between unified meter and A/C amp. and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Check continuity between unified meter and A/C amp. harness connector M56 terminals 29, 30 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
DTC [U1000] CAN Communication CircuitINFOID:0000000001328460
Symptom: Display “CAN COMM CIRC [U1000]” at the re sult of self-diagnosis for unified meter and A/C amp.
1.CHECK CAN COMMUNICATION
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of “METER/M&A”
YES >> Refer to LAN-14, "
Trouble Diagnosis Flow Chart".
NO >> Refer to GI-35, "
CONSULT-III/GST Data Link Connector (DLC) Circuit".
DTC [B2202] Meter Communication CircuitINFOID:0000000001328461
Symptom: Display “METER COMM CI RC [B2202]” at the result of self-diagnosis for unified meter and A/C
amp.
1.CHECK CONNECTOR
Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter
and A/C amp. side, and harness side) for looseness or bent terminals.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2.CHECK METER/GAUGES VISUALLY
Check the pointer on the meter/gauge fluctuate at the engine start.
Is the fluctuation acceptable?
YES >> GO TO 3.
Terminals Ignition switch position
(+) (–) OFF ACC ON
Connector Terminal
M56 21
Ground Battery
voltage Battery
voltage Battery
voltage
22 0 V 0 V Battery
voltage
M57 46 0 V Battery
voltage Battery
voltage
PKIB3570E
29 – Ground : Continuity should exist.
30 – Ground
SKIA5202E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

UNIFIED METER AND A/C AMPDI-31
< SERVICE INFORMATION >
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NO >> GO TO 6.
3.CHECK CONTINUITY COMM UNICATION CIRCUIT (TX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector M20 terminal 13 and unified meter and A/C amp. harness con-
nector M55 terminal 19.
4. Check continuity between combination meter harness connector M20 terminal 13 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.
1. Connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector M20 terminal 13 and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace unified meter and A/C amp. Refer to DI-32,
"Removal and Installation of Unified Meter and A/C
Amp"
5.CHECK VOLTAGE SIGNAL OF COMBINATION METER
1. Turn ignition switch OFF.
2. Connect combination meter connector.
3. Turn ignition switch ON.
4. Check voltage signal between combination meter harness con- nector M20 terminal 13 and ground.
OK or NG
OK >> Replace unified meter and A/C amp. Refer to DI-32, "Removal and Installation of Unified Meter
and A/C Amp".
NG >> Replace combination meter.
6.CHECK CONTINUITY COMM UNICATION CIRCUIT (RX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
13 – 19 : Continuity should exist.
13 – Ground : Continuity should not exist.
SKIA4837E
13 – Ground : Approx. 5 V
SKIA4886E
13 – Ground:
SKIA9258ESKIA3361E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-32
< SERVICE INFORMATION >
UNIFIED METER AND A/C AMP
3. Check continuity between combination meter harness connectorM20 terminal 14 and unified meter and A/C amp. harness con-
nector M55 terminal 9.
4. Check continuity between combination meter harness connector M20 terminal 14 and ground.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7.CHECK VOLTAGE OF COMBINATION METER
1. Connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness connector M55 terminal 9 and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace combination meter.
8.CHECK VOLTAGE SIGNAL OF UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Connect unified meter and A/C amp. connector.
3. Turn ignition switch ON.
4. Check voltage signal between combination meter harness con- nector M20 terminal 14 and ground.
OK or NG
OK >> Replace combination meter.
NG >> Replace unified meter and A/C amp. Refer to DI-32, "
Removal and Installation of Unified Meter
and A/C Amp".
DTC [B2205] Vehicle Speed CircuitINFOID:0000000001328462
Symptom: Display “VEHICLE SPEED CIRC [B2205]” at the result of self-diagnosis for unified meter and A/C
amp.
Perform self-diagnosis of ABS actuator and electric unit (control unit), and repair or replace malfunctioning
parts. Refer to BRC-26, "
CONSULT-III Functions (ABS)".
Removal and Installation of Unified Meter and A/C AmpINFOID:0000000001328463
REMOVAL
14 – 9 : Continuity should exist.
14 – Ground : Continuity should not exist.
SKIA4836E
9 – Ground : Approx. 5 V
PKIB3587E
14 – Ground:
SKIA9260ESKIA3362E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

WARNING LAMPSDI-43
< SERVICE INFORMATION >
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Oil Pressure Warning Lamp Stay s Off (Ignition Switch ON)INFOID:0000000001328467
1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-20, "
Auto Active Test".
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5.
TKWM4353E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-44
< SERVICE INFORMATION >
WARNING LAMPS
2.CHECK IPDM E/R INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector E9 termi- nal 57 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and
Installation of IPDM E/R".
NG >> GO TO 3.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Check oil pressure switch. Refer to DI-46, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector E9 ter- minal 57 and oil pressure switch harness connector F1 terminal
1.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector.
5.CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-27, "
CONSULT-III Function (METER/M&A)".
Self-diagnosis results
No malfunction detected >> GO TO 6.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
6.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Operate ignition switch with “OIL W/L” of “Data Monitor” and check operation status.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 7.
7.CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-III.
2. Select “Data Monitor” of “SIGNAL BUFFER”. 57 – Ground : Approx. 0 V
SKIB6449E
57 – 1 : Continuity should exist.
PKIB3572E
“OIL W/L”
When ignition switch is in ON
position (Engine stopped)
: On
When engine running : Off
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

WARNING LAMPSDI-45
< SERVICE INFORMATION >
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3. Operate ignition switch with “OIL PRESS SW ” of “Data Monitor” and check operate status.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NG >> Replace IPDM E/R. Refer to PG-24, "
Removal and Installation of IPDM E/R".
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)INFOID:0000000001328468
NOTE:
For oil pressure inspection, refer to LU-5, "
Inspection" (VQ35DE) or LU-23, "Inspection" (VK45DE)
1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer to PG-20, "
Auto Active Test".
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector F1 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-46, "
Component Inspection".
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and Installation of IPDM E/R".
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector E9 ter- minal 57 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-24, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector. “OIL PRESS SW”
When ignition switch is in ON
position (Engine stopped)
: On
When engine running : Off
1 – Ground : Approx. 12 V
PKIB3573E
57 – Ground : Continuity should not exist.
SKIA5013E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

WARNING CHIMEDI-51
< SERVICE INFORMATION >
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WARNING CHIME
System DescriptionINFOID:0000000001328473
 Buzzer for warning chime system is installed in the combination meter.
 The buzzer sounds when the combination meter receives buzzer output signal from each unit through uni- fied meter and A/C amp.
POWER SUPPLY AND CIRCUIT
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), and
 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.
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the key switch, and the igniti on switch in OFF or ACC position, when driver's door is
opened, the ignition key warning chime will sound.
 BCM detects key inserted into the key switch, igniti on switch in OFF or ACC position, and front door switch
(driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified meter and
A/C amp. with CAN communication.
 Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination
meter with communication line.
 When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the ignition switch, and the i gnition switch LOCK or ACC position, when driver's door
is opened, the warning chime will sound.
 BCM detects key inserted into the key switch, ignition switch in LOCK or ACC position, and front door switch
(driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified meter and
A/C amp. with CAN communication.
SKIB6481E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C