2005 INFINITI FX35 neutral

BACK DOOR AUTO CLOSURE SYSTEM BL-171
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Revision: 2005 July 2005 FX
OPEN OPERATION

When passenger side door unlock and back door shuts, back door opener switch is pushed.

Back door closure control unit receives the signal, closure motor is operated in an open direction, and
back door opens.

Closure motor is operated in the close direction and stops at a neutral position when the following condi-
tions detected after turning on open switch.
–When back door is in half-open state, and
–5 seconds past without opening back door.
PIIA6187E

BACK DOOR AUTO CLOSURE SYSTEM BL-175
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Revision: 2005 July 2005 FX
Work FlowAIS004OH
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-170, "
System Description" .
3. Perform the preliminary check, Refer to BL-175, "
Preliminary Check"
4. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to BL-175,
"Trouble Diagnosis Chart by Symptom" .
5. Does back door auto closure system operate normally? If Yes, GO TO 6, If No, GO TO 4.
6. INSPECTION END
Preliminary CheckAIS004OI
Remove the fuse No.18 for the back door closure with the back door closure inactive.
Check that the back door can be open / close normally.
CAUTION:
It is judged it is abnormal, discontinues closure operation, and drive lever returns to a neutral position
if not becoming full-latch within about three seconds after half-latch.
When this operation is done continuously three times, both back door closure and back door opener
switch are not operated because the function of back door closure is stopped.
Thing to reset power supply by pulling out and opening fuse in that case.
Trouble Diagnosis Chart by SymptomAIS004OJ
Symptom Diagnostic procedure and repair order Refer to page
Back door closure does not operate. 1.Back door closure motor power supply and ground
circuit check BL-176
2. Half-latch switch check
BL-176
3. Close switch checkBL-178
4. Open switch check.BL-179
5. Closure motor check.BL-185
6. Replace back door closure control unit.BL-185
Back door does not open (with Intelligent Key system). 1. Intelligent Key system check.
BL-1182. Back door opener switch check.BL-180
Back door does not open 1. Back door opener switch check.
BL-1822. Unlock sensor check.BL-184
3. Replace back door closure control unit.BL-185
Back door does not enter fully closed states through
back door closure operates. 1.Back door fitting adjustment.
BL-164
2. Replace back door lock assembly.BL-168

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
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BRC
Revision: 2005 July 2005 FX
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Brake System ............................. ..... 3
Precautions for Brake Control ............................. ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 5
ON-VEHICLE SERVICE ........................................ ..... 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ...................................................................... ..... 6
Calibration of Decel G Sensor (AWD Model) ...... ..... 6
SYSTEM DESCRIPTION ....................................... ..... 8
System Diagram .................................................. ..... 8
VDC Function ...................................................... ..... 8
TCS Function ...................................................... ..... 8
ABS Function ...................................................... ..... 8
EBD Function ...................................................... ..... 9
Fail-Safe Function ............................................... ..... 9
VDC / TCS SYSTEM ........................................ ..... 9
ABS, EBD SYSTEM ......................................... ..... 9
Hydraulic Circuit Diagram ................................... ... 10
CAN COMMUNICATION ....................................... ....11
System Description ............................................. .... 11
TROUBLE DIAGNOSIS ......................................... ... 12
How to Proceed with Diagnosis .......................... ... 12
BASIC CONCEPT ............................................ ... 12
DIAGNOSIS FLOWCHART ............................. ... 13
ASKING COMPLAINTS ................................... ... 14
EXAMPLE OF DIAGNOSIS SHEET ................ ... 14
Component Installation Location ......................... ... 15
Schematic ........................................................... ... 16
Wiring Diagram — VDC — .................................. ... 17
Control Unit Input/Output Signal Standard .......... ... 23
REFERENCE VALUE FROM CONSULT-II ...... ... 23
CONSULT-II Functions ........................................ ... 25
CONSULT-II MAIN FUNCTION ........................ ... 25
CONSULT-II BASIC OPERATION PROCEDURE ... 26
SELF-DIAGNOSIS ........................................... ... 27
DATA MONITOR .............................................. ... 30
ACTIVE TEST .................................................. ... 33
For Fast and Accurate Diagnosis ........................ ... 35
PRECAUTIONS FOR DIAGNOSIS .................. ... 35
Basic Inspection .................................................. ... 36
BASIC INSPECTION 1: BRAKE FLUID
AMOUNT, LEAKS, AND BRAKE PADS INSPEC-
TION ................................................................. ... 36
BASIC INSPECTION 2: POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION ................................................................. ... 36
BASIC INSPECTION 3: ABS WARNING LAMP,
VDC OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPEC-
TION ................................................................. ... 37
Inspection 1: Wheel Sensor Circuit ..................... ... 37
Inspection 2: Engine System ............................... ... 39
Inspection 3: VDC/TCS/ABS Control Unit Circuit ... 40
Inspection 4: Pressure Sensor Circuit ................. ... 40
Inspection 5: Steering Angle Sensor Circuit ........ ... 42
Inspection 6: Yaw Rate/Side G Sensor (2WD
Model), Yaw Rate/Side/Decel G sensor (AWD Mod-
els) Circuit ............................................................ ... 44
Inspection 7: Solenoid and VDC Change-Over
Valve Circuit ......................................................... ... 46
Inspection 8: Actuator Motor Circuit .................... ... 47
Inspection 9: ABS Actuator and Electric Unit (Con-
trol Unit) Power Supply and Ground Circuit ......... ... 48
Inspection 10: Stop Lamp Switch Circuit ............. ... 50
Inspection 11: Brake Fluid Level Switch Circuit ... ... 51
Inspection 12: When “ST ANG SEN SIGNAL”
Appears on Self-diagnosis Results Display ......... ... 52
Inspection 13: When “DECEL G SEN SET” Appears
on Self-diagnostic Results Display (AWD Model) ... 52
Inspection 14: CAN Communication Circuit ........ ... 53
Component Inspection ......................................... ... 53
VDC OFF SWITCH .......................................... ... 53
Symptom 1: Excessive ABS Function Operation

BRC-6
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
Revision: 2005 July 2005 FX
ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionAFS001S9
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
× : Required
–: Not required
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment can not be done without CONSULT-II.)
1. Stop vehicle with front wheels in straight-ahead position.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector on vehicle, and turn ignition switch ON (do not start engine).
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
3. Touch “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” on CONSULT-II screen in this order. Refer to BRC-26, "
CONSULT-II BASIC OPERATION PROCEDURE" .
4. Touch “START”. CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5. After approximately 10 seconds, touch “END”. (After approxi- mately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again. CAUTION:
Be sure to perform above operation.
7. Run vehicle with front wheels in straight-ahead position, then stop.
8. Select “DATA MONITOR”, “SELECTION FROM MENU”, and “STR ANGLE SIG” on CONSULT-II screen. Then make sure “STR ANGLE SIG” is within 0 ±3.5 deg. If value is more than specification, repeat steps 3
to 7.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch OFF.
Calibration of Decel G Sensor (AWD Model)AFS001TQ
NOTE:
After removing/installing or replacing yaw rate/side/decel G sensor, ABS actuator and electric unit (control
unit), suspension components, or after adjusting wheel alignment, make sure to calibrate of decel G sensor
before running vehicle.
CAUTION:
To calibrate decel G sensor, make sure to use CONSULT-II. (Adjustment can not be done without CON-
SULT-II.)
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit) −
Replacing ABS actuator and electric unit (control unit) ×
Removing/Installing steering angle sensor ×
Removing/Installing steering components ×
Removing/Installing suspension components ×
Change 4 tires to new ones –
Tire rotation –
Adjusting wheel alignment ×
SFIA0371E

BRC-26
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
CONSULT-II BASIC OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector. CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “ABS” in the “SELECT SYSTEM” screen. If “ABS” is not indicated, go to GI-39, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
Diagnostic
test mode Function Reference
WORK SUP- PORT This mode enables a technician to adjust some devices faster and more accurately
by following the indications on CONSULT-II. BRC-6, "
Adjustment of Steer-
ing Angle Sensor Neutral
Position"
SELF-DIAG-
NOSTIC
RESULTS Self-diagnostic results can be read and erased quickly.
BRC-27, "
SELF-DIAGNOSIS"
DATA MONI-
TOR Input/Output data in the ABS actuator and electric unit (control unit) can be read.
BRC-30, "DATA MONITOR"
CAN DIAG
SUPPORT
MNTR The results of transmit/receive diagnosis of communication can be read. —
ACTIVE TEST Diagnostic Test Mode in which CONSULT-II drives some actuators apart from the
ABS actuator and electric unit (control unit) and also shifts some parameters in a
specified range. BRC-33, "
ACTIVE TEST"
FUNCTION
TEST Performed by CONSULT-II instead of a technician to determine whether each sys-
tem is “OK” or “NG”. —
ECU PART
NUMBER ABS actuator and electric unit (control unit) part number can be read. —
SKIA3098E
PKIA2102E

BRC-28
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Display Item List
Self-diagnostic item Malfunction detecting condition Check system
FR LH SENSOR- 1
[C1104] Circuit of front LH wheel sensor is open, shorted or sensor power
voltage is unusual.
BRC-37, "
Inspection 1:
Wheel Sensor Circuit"
(Note 1)
RR RH SENSOR- 1
[C1101] Circuit of rear RH wheel sensor is open, shorted or sensor power
voltage is unusual.
FR RH SENSOR- 1
[C1103] Circuit of front RH wheel sensor is open, shorted or sensor power
voltage is unusual.
RR LH SENSOR- 1
[C1102] Circuit of rear LH wheel sensor is open, shorted or sensor power
voltage is unusual.
FR LH SENSOR- 2
[C1108] ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
RR RH SENSOR- 2
[C1105] ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
FR RH SENSOR- 2
[C1107] ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
RR LH SENSOR- 2
[C1106] ABS actuator and electric unit (control unit) can not identify sen-
sor pulses, because of large gap between wheel sensor and sen-
sor rotor.
STOP LAMP SW
[C1116] Stop lamp switch circuit is open or shorted. BRC-50, "
Inspection 10:
Stop Lamp Switch Cir-
cuit"
PRESS SEN CIRCUIT
[C1142] Pressure sensor signal line is open or shorted, or sensor power
voltage is unusual, or pressure sensor is malfunctioning. BRC-40, "Inspection 4:
Pressure Sensor Circuit"
ST ANG SEN CIRCUIT
[C1143] Neutral position of steering angle sensor is dislocated, or steer-
ing angle sensor is malfunctioning. BRC-42, "Inspection 5:
Steering Angle Sensor
Circuit"
YAW RATE SENSOR
[C1145] Yaw rate sensor has generated an error, or yaw rate sensor sig-
nal line is open or shorted. BRC-44, "
Inspection 6:
Yaw Rate/Side G Sensor
(2WD Model), Yaw Rate/
Side/Decel G sensor
(AWD Models) Circuit"

TROUBLE DIAGNOSIS BRC-29
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
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-46, "
Inspection 7:
Solenoid and VDC
Change-Over Valve Cir-
cuit"
FR LH OUT ABS SOL
[C1121] Circuit of front LH OUT ABS solenoid is open or shorted, or con-
trol 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 con-
trol 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 con-
trol 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 con-
trol 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 sup-
ply 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 sup-
ply 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.
PUMP MOTOR (Note 3)
[ C 1111 ] During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open. BRC-47, "
Inspection 8:
Actuator Motor Circuit"During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
ABS SENSOR
[ABNORMAL SIGNAL]
[C1115] Wheel sensor input is malfunction. BRC-37, "
Inspection 1:
Wheel Sensor Circuit"
(Note 1)
BATTERY VOLTAGE
[ABNORMAL]
[C1109] ABS actuator and electric unit (control unit) power voltage is too
low. BRC-48, "
Inspection 9:
ABS Actuator and Elec-
tric Unit (Control Unit)
Power Supply and
Ground Circuit"
ST ANG SEN SIGNAL
[C1144] Neutral position correction of steering angle sensor is not fin-
ished. BRC-42, "Inspection 5:
Steering Angle Sensor
Circuit"ST ANG SEN COM CIR
[C1156] CAN communication line or steering angle sensor has generated
an error.
SIDE G-SEN CIRCUIT
[C1146] Side G sensor is malfunctioning, or signal line of side G sensor is
open or shorted. BRC-44, "
Inspection 6:
Yaw Rate/Side G Sensor
(2WD Model), Yaw Rate/
Side/Decel G sensor
(AWD Models) Circuit"
CONTROLLER FAILURE
[C1110] Internal malfunction of ABS actuator and electric unit (control
unit) BRC-40, "Inspection 3:
VDC/TCS/ABS Control
Unit Circuit"
Self-diagnostic item Malfunction detecting condition Check system

BRC-30
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Note 1: After completing repairs of shorted sensor circuit, when turning ignition switch ON, ABS warning lamp
turned on. Make that 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 dis-
played for wheels, check wheel sensor circuit and also check ABS actuator 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. Actuator relay is imbedded in ABS actuator and electric unit (control unit).
DATA MONITOR
Operation Procedure
1. After turning ignition switch OFF, connect CONSULT-II and CONVERTER to data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen. If “ABS” is not indicated, go to GI-39, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAN COMM CIRCUIT
[U1000]

CAN communication line is open or shorted.

ABS actuator and electric unit (control unit) internal malfunc-
tion

Battery voltage for EMC is suddenly interrupted for approxi-
mately 0.5 seconds or more. BRC-53, "
Inspection 14:
CAN Communication
Circuit" (Note 2)
BR FLUID LEVEL LOW
[C1155] Brake fluid level drops or circuit between ABS actuator and elec-
tric unit (control unit) and brake fluid level switch is open or
shorted. BRC-51, "
Inspection 11:
Brake Fluid Level Switch
Circuit"
VARIANT CODING
[C1170] V coding is not functioning. ABS actuator and elec-
tric unit (control unit) and
circuit
G - SENSOR (AWD model)
[C1113] Decel G sensor is malfunctioning, or signal line of Decel G sen-
sor is open or shorted. BRC-44, "
Inspection 6:
Yaw Rate/Side G Sensor
(2WD Model), Yaw Rate/
Side/Decel G sensor
(AWD Models) 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 malfunction-
ing. –
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 malfunc-
tioning. –
ENGINE SIGNAL 6
[C1136] Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine control system is malfunctioning. –
ACTUATOR RLY
[C1140] (Note 3)

Actuator solenoid valve relay is ON, even if control unit sends
off signal.

Actuator solenoid valve relay is OFF, even if control unit sends
on signal. BRC-47, "
Inspection 8:
Actuator Motor Circuit"
DECEL G SEN SET (AWD model)
[C1160] Neutral position correction of Decel G sensor is not finished. BRC-52, "
Inspection 13:
When “DECEL G SEN
SET” Appears on Self-
diagnostic Results Dis-
play (AWD Model)"
Self-diagnostic item Malfunction detecting condition Check system