2007 INFINITI FX35 ECO mode

TROUBLE DIAGNOSIS BRC-27
[VDC/TCS/ABS]
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Revision: 2006 July 2007 FX35/FX45
FR LH IN ABS SOL
[C1120] Circuit of front LH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
BRC-44, "
Solenoid and VDC
Change-Over Valve Circuit"
FR LH OUT ABS SOL
[C1121] Circuit of front LH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122] Circuit of front RH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123] Circuit of front RH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124] Circuit of rear LH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126] Circuit of rear RH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127] Circuit of rear RH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
CV1
[C1164] Primary side VDC switch-over solenoid valve 1 (cut valve 1) is open or
shorted, or control line is open or shorted to power supply or ground.
CV2
[C1165] Secondary side VDC switch-over solenoid valve 2 (cut valve 2) is open
or shorted, or control line is open or shorted to power supply or ground.
SV1
[C1166] Primary side VDC switch-over solenoid valve 1 (suction valve 1) is
open or shorted, or control line is open or shorted to power supply or
ground.
SV2
[C1167] Secondary side VDC switch-over solenoid valve 2 (suction valve 2) is
open or shorted, or control line is open or shorted to power supply or
ground.
ACTUATOR RLY
[C1140] (Note 3)

Actuator solenoid valve relay is ON, even if control unit sends off sig-
nal.

Actuator solenoid valve relay is OFF, even if control unit sends on
signal. BRC-45, "
Actuator Motor Cir-
cuit"
PRESS SEN CIRCUIT
[C1142] Pressure sensor signal line is open or shorted, or sensor power volt-
age is unusual, or pressure sensor is malfunctioning. BRC-39, "Pressure Sensor Cir-
cuit"
ST ANG SEN CIRCUIT
[C1143] Neutral position of steering angle sensor is dislocated, or steering
angle sensor is malfunctioning. BRC-41, "Steering Angle Sen-
sor Circuit"
ST ANG SEN SIGNAL
[C1144] Neutral position correction of steering angle sensor is not finished. BRC-6, "Adjustment of Steer-
ing Angle Sensor Neutral Posi-
tion"
YAW RATE SENSOR
[C1145] Yaw rate sensor has generated an error, or yaw rate sensor signal line
is open or shorted. BRC-42, "
Yaw Rate/Side G
Sensor (2WD Models), Yaw
Rate/Side/Decel G Sensor
(AWD Models) Circuit"
SIDE G-SEN CIRCUIT
[C1146] Side G sensor is malfunctioning, or signal line of side G sensor is open
or shorted. BRC-42, "
Yaw Rate/Side G
Sensor (2WD Models), Yaw
Rate/Side/Decel G Sensor
(AWD Models) Circuit"
BR FLUID LEVEL LOW
[C1155] Brake fluid level drops or circuit between ABS actuator and electric unit
(control unit) and brake fluid level switch is open or shorted. BRC-50, "Brake Fluid Level
Switch Circuit"
ST ANG SEN COM CIR
[C1156] CAN communication line or steering angle sensor has generated an
error. BRC-41, "
Steering Angle Sen-
sor Circuit"
BRC-52, "CAN Communication
Circuit"
Self-diagnostic item Malfunction detecting condition Check system

BRC-28
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Note 1: After completing repairs of shorted sensor circuit, when turning ignition switch ON, ABS warning lamp turned on. Make t hat ABS
warning lamp turned off while driving vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute according to self-
diagnosis procedure. In addition, if wheel sensor 2 is displayed for wheels, check wheel sensor circuit and also check ABS actu ator and
electric unit (control unit) power voltage.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
Note 3: “ACTUATOR RLY” on the CONSULT-II self-diagnostic results indicates the malfunction of actuator relay or circuit. Actuat or relay
is imbedded in ABS actuator and electric unit (control unit).
Note 4:Only AWD models. DECEL G SEN SET
[C1160] (Note 4) Neutral position correction of decel G sensor is not finished. BRC-51, "
When “DECEL G
SEN SET” Appears on Self-
diagnostic Results Display
(AWD Models)"
BRC-7, "Calibration of Decel G
Sensor (AWD Models)"
VARIANT CODING
[C1170] V coding is not functioning. ABS actuator and electric unit
(control unit) and circuit
ENGINE SIGNAL 1
[C1130] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine fuel cut system is malfunctioning.
BRC-38, "
Engine System"
ENGINE SIGNAL 2
[C1131] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine ETC system is malfunctioning.
ENGINE SIGNAL 3
[C1132] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine CAN system is malfunctioning.
ENGINE SIGNAL 4
[C1133] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine torque down system is malfunctioning.
ENGINE SIGNAL 6
[C1136] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine control system is malfunctioning.
CAN COMM CIRCUIT
[U1000] When a ABS actuator and electric unit (control unit) is not transmitting
or receiving CAN communication signal for 2 seconds or more. BRC-52, "
CAN Communication
Circuit" (Note 2)
Self-diagnostic item Malfunction detecting condition Check system

TROUBLE DIAGNOSIS FOR SYSTEM BRC-43
[VDC/TCS/ABS]
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Revision: 2006 July 2007 FX35/FX45
2. CHECK CONNECTOR
1. Disconnect G sensor connector and ABS actuator and electric unit (control unit) connector and check ter- minals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace
terminal.
2. Reconnect connectors and perform a ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK G SENSOR HARNESS
1. Turn ignition switch OFF and disconnect G sensor connector M79 (2WD models) or M71 (AWD models) and ABS actuator
and electric unit (control unit) connector E56.
2. Check continuity between ABS actuator and electric unit (control unit) harness connector and G sensor harness connector.
OK or NG
OK >> GO TO 4.
NG >> If the open or short in harness, repair or replace harness.
4. CHECK G SENSOR
1. Connect G sensor connector and ABS actuator and electric unit (control unit) connector.
2. Use CONSULT-II “DATA MONITOR” to check if G sensor are normal.
OK or NG
OK >> Perform ABS actuator and electric unit (control unit) self-diagnosis again.
NG >> Replace malfunctioning G sensor, and then perform self-diagnosis for ABS actuator and electric unit (control unit) again.
ABS actuator and electric unit (control unit) G sensor Continuity
63
Ye s
24 5
25 1
29 2
SFIA1192E
Vehicle status Yaw rate sensor
(Data monitor standard) Side G sensor
(Data monitor standard) Decel G sensor (AWD models)
(Data monitor standard)
When stopped − 4 to + 4 deg/s
− 1.1 to + 1.1 m/s
2− 0.11 to + 0.11G
Right turn Negative value Negative value —
Left turn Positive value Positive value —
Speed up — — Negative value
Speed down — — Positive value

COMBINATION METERS DI-7
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Revision: 2006 July 2007 FX35/FX45
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.

Unified meter and A/C amp. reads a resistor signal from fuel level sensor.
Signal is supplied
–from unified meter and A/C amp. terminal 36
–through the fuel level sensor unit and fuel pump (main) terminals 5 and 2, and
–through the fuel level sensor unit (sub) terminals 2 and 1
–to unified meter and A/C amp. terminal 28 for the fuel gauge.

Unified meter and A/C amp. provides a fuel level signal to combination meter with communication line.

Combination meter indicates the approximate fuel level according to the fuel level signal.
ODO/TRIP METER

ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C
amp. with CAN communication.

Unified meter and A/C amp. converts the vehicle speed signal to the 8-pulse signal, and outputs the vehi-
cle speed signal (8-pulse) to combination meter.

Combination meter uses the vehicle speed signal (8-pulse) to calculate the mileage, and displays it.
How to Change The Display For Odo/trip Meter
Switch modes with following procedure.

When trip transfer switch is pressed, trip meter display changes.

If trip reset switch is pressed for 1 second or more while “trip A”
is displayed, only “trip A” is reset.
NOTE:
The record of the odo meter is kept even if the battery cable is dis-
connected. The record of the trip meter is erased when the battery
cable is disconnected.
SKIB8760E
SKIA4817E

DI-16
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
3. Turn ignition switch ON while pressing trip transfer switch and
trip reset switch at the same time.
4. After ignition switch is turned ON, release trip transfer switch and trip reset switch (within 7 seconds after the ignition switch is
turned ON).
5. All the segments on the odo/trip meter, shift position indicator and ICC system display illuminates, and simultaneously the low-fuel warning lamp indicator illuminates. At this time, the unified meter control unit
is turned to self-diagnosis mode.
NOTE:

Check odo/trip meter switch and combination meter power supply and ground circuit when self-diagno-
sis mode of combination meter does not start. Replace combination meter if the results of the check are
normal.

If any of the segments are not displayed, replace combination meter.
6. Each meter/gauge activates during pressing trip reset switch. (Then low-fuel warning lamp turns OFF.)
NOTE:

If any of the meters/gauges are not activated, replace the
combination meter.

The figure is reference.
CONSULT-II Function (METER A/C AMP)NKS002ZK
Refer to DI-31, "CONSULT-II Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
Trouble DiagnosisNKS002ZL
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to DI-17, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the symptom. Refer to DI-17, "
Symptom
Chart" .
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. INSPECTION END
SKIA4817E
SKIA6170E
SKIA4831E

UNIFIED METER AND A/C AMP DI-31
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Revision: 2006 July 2007 FX35/FX45
CONSULT-II Function (METER A/C AMP)NKS00304
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
NOTE:
“TIME” means the following.

0: Means detected malfunction at present. (From malfunction detection to turning ignition switch OFF)

1 - 63: Means detected malfunction in the past. (Displays the number of ignition switch OFF → ON after
detecting malfunction. “SELF-DIAG RESULTS” is erased when exceeding “63”.)
System Diagnosis mode Description Reference
page
METER A/C AMP SELF-DIAG RESULTS
Unified meter and A/C amp. checks the conditions and dis-
plays memorized error. DI-31
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communi-
cation can be read. LAN-44
DATA MONITOR
Displays unified meter and A/C amp. input data in real
time. DI-32
SKIA4956E
Display item [Code] Malfunction is detected when...
Reference
page
CAN COMM CIRC [U1000] When a unified meter and A/C amp. is not transmitting or receiving CAN communica-
tion signal for 2 seconds or more. 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

DI-32
UNIFIED METER AND A/C AMP
Revision: 2006 July 2007 FX35/FX45
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.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni- tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
X: Applicable
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit] MAIN
SIGNALS SELECTION
FROM MENU Contents
SPEED METER [km/h] or [mph] X X Displays the value of vehicle speed signal, which is input from
ABS actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X X Displays the value of vehicle speed signal, which is transmitted
to each unit with CAN communication.
TACHO METER [rpm] X X Displays the value of engine speed signal, which is input from
ECM.
W TEMP METER [ °C] or [ °F] X X Displays the value of engine coolant temperature signal, which
is input from ECM.
FUEL METER [lit.] X X Displays the value, which processes a resistance signal from
fuel gauge.
DISTANCE [km] or [mile] X X Displays the value, which is calculated by vehicle speed signal
from ABS actuator and electric unit (control unit), fuel gauge and
fuel consumption from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Indicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF]
*1X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
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).

WARNING CHIME DI-67
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Revision: 2006 July 2007 FX35/FX45
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.
Display Item List
SELF-DIAG RESULTS
Operation Procedure
1. Touch “BCM” on “SELECT TEST ITEM” screen.
2. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
3. Self-diagnosis results are displayed.
Display Item List
NOTE:
If “CAN communication [U1000]” is indicated, after printing the monitor item, go to “LAN system”. Refer to
LAN-49, "
CAN System Specification Chart" .
Trouble DiagnosisNKS003I1
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to DI-56, "
System Description" .
3. Perform the preliminary inspection. Refer to DI-68, "
PRELIMINARY INSPECTION" .
4. Referring to trouble diagnosis chart, make sure the cause of the malfunction and repair or replace applica- ble parts. Refer to DI-68, "
Symptom Chart" .
5. Does the warning chime operate normally? If so, GO TO 6. If not, GO TO 3.
6. INSPECTION END
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).
Test item Malfunction is detected when···
LIGHT WARN ALM This test is able to check light warning chime operation.
IGN KEY WARN ALM This test is able to check ignition key warning chime operation.
SEAT BELT WARN TEST This test is able to check seat belt warning chime operation.
Monitored Item CONSULT-ll display Description
CAN communication CAN communication [U1000] Malfunction is detected in CAN communication.