2004 INFINITI FX35 brake

EC-50
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2004 November 2004 FX35/FX45
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine
is started the headlamp will not be illuminated.

Steering wheel: Neutral (Straight-ahead position)

Vehicle speed: Stopped

Transmission: Warmed-up
For models with CONSULT-II, drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/T”
system indicates less than 0.9V.
For models without CONSULT-II, drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform EC-49, "Accelerator Pedal Released Position Learning" .
2. Perform EC-49, "
Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
5. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-II screen. If
“CMPLT” is not displayed, Idle Air Volume Learning will not be
carried out successfully. In this case, find the cause of the inci-
dent by referring to the Diagnostic Procedure below.
8. Rev up the engine two or three times and make sure that idle
speed and ignition timing are within the specifications.
Without CONSULT-II
NOTE:

It is better to count the time accurately with a clock.

It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
1. Perform EC-49, "
Accelerator Pedal Released Position Learning" .
SEF217Z
SEF454Y
ITEM SPECIFICATION
Idle speed 650±50 rpm (in P or N position)
Ignition timing 15±5° BTDC (in P or N position)
MBIB0238E

EC-56
[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2004 November 2004 FX35/FX45
PW ST P SEN/CIRC P0550 0550 — —×EC-396
ECM P0605 0605 — —× or —EC-401
PNP SW/CIRC P0705 0705 — —×AT- 11 2
ATF TEMP SEN/CIRC P0710 0710 — —×AT-139
VEH SPD SEN/CIR AT*7P0720 0720 — —×AT- 11 6
ENGINE SPEED SIG P0725 0725 — —×AT-121
TCC SOLENOID/CIRC P0740 0740 — —×AT-123
A/T TCC S/V FNCTN P0744 0744 — —×AT-125
L/PRESS SOL/CIRC P0745 0745 — —×AT-127
ECM BACK UP/CIRC P1065 1065 — —×EC-404
I N T / V T I M V / C I R - B 1 P 1111 1111 — —×EC-408
ETC ACTR P1121 1121 — — —EC-415
ETC FUNCTION/CIRC P1122 1122 — — —EC-417
ETC MOT PWR P1124 1124 — — —EC-423
ETC MOT PWR P1126 1126 — — —EC-423
ETC MOT P1128 1128 — — —EC-428
INT/V TIM V/CIR-B2 P1136 1136 — —×EC-408
HO2S1 (B1) P1143 1143××
×*5EC-433
HO2S1 (B1) P1144 1144××
×*5EC-439
HO2S2 (B1) P1146 1146××
×*5EC-446
HO2S2 (B1) P1147 1147××
×*5EC-457
CLOSED LOOP-B1 P1148 1148 — — —EC-468
HO2S1 (B2) P1163 1163××
×*5EC-433
HO2S1 (B2) P1164 1164××
×*5EC-439
HO2S2 (B2) P1166 1166××
×*5EC-446
HO2S2 (B2) P1167 1167××
×*5EC-457
CLOSED LOOP-B2 P1168 1168 — — —EC-468
TCS C/U FUNCTN P1211 1211 — —×EC-470
TCS/CIRC P1212 1212 — —×EC-471
ENG OVER TEMP P1217 1217 — — —EC-472
CTP LEARNING P1225 1225 — —×EC-485
CTP LEARNING P1226 1226 — —×EC-487
SENSOR POWER/CIRC P1229 1229 — — —EC-489
PURG VOLUME CONT/V P1444 1444 — —×EC-494
VENT CONTROL VALVE P1446 1446 — —×EC-502
ASCD SW*8P1564 1564 — — —EC-515, EC-
508
ACC COMMAND VALUE*9P1568 1568 — — —EC-521
ASCD BRAKE SW*8P1572 1572 — — —EC-532, EC-
522
ASCD VHL SPD SEN*8P1574 1574 — — —EC-543, EC-
541
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTest value/
Te s t l i m i t
(GST only)1st trip DTCReference
page CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-57
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Revision: 2004 November 2004 FX35/FX45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: SRT code will not be set if the self-diagnostic result is NG.
*5: This is not displayed with GST.
*6: The troubleshooting for this DTC needs CONSULT-II.
*7: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*8: For models with ICC or ASCD system.
*9: For models with ICC system.
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MIL will not
light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MIL lights up. In other words,
the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MIL during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in EC-67, "
HOW
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-54, "
EMISSION-RELATED DIAGNOSTIC
INFORMATION ITEMS" . These items are required by legal regulations to continuously monitor the system/
component. In addition, the items monitored non-continuously are also displayed on CONSULT-II.
NATS MALFUNCTIONP1610 -
P16151610 - 1615 — —×EC-68
TP SEN/CIRC A/T P1705 1705 — — —AT- 1 3 6
P-N POS SW/CIRCUIT P1706 1706 — —×EC-545
TURBINE REV S/CIRC P1716 1716 — —×AT- 1 4 3
A/T INTERLOCK P1730 1730 — — —AT- 1 4 7
I/C SOLENOID/CIRC P1752 1752 — — —AT- 1 5 2
I/C SOLENOID FNCTN P1754 1754 — — —AT- 1 5 4
FR/B SOLENOID/CIRC P1757 1757 — — —AT- 1 5 6
FR/B SOLENOID/CIRC P1759 1759 — — —AT- 1 5 8
D/C SOLENOID/CIRC P1762 1762 — — —AT- 1 6 0
D/C SOLENOID FNCTN P1764 1764 — — —AT- 1 6 2
HLR/C SOL/CIRC P1767 1767 — — —AT- 1 6 4
HLR/C SOL FNCTN P1769 1769 — — —AT- 1 6 6
LC/B SOLENOID/CIRC P1772 1772 — — —AT- 1 6 8
LC/B SOLENOID FNCT P1774 1774 — — —AT- 1 7 0
BRAKE SW/CIRCUIT P1805 1805 — —×EC-550
APP SEN 1/CIRC P2122 2122 — — —EC-555
APP SEN 1/CIRC P2123 2123 — — —EC-555
APP SEN 2/CIRC P2127 2127 — — —EC-562
APP SEN 2/CIRC P2128 2128 — — —EC-562
TP SENSOR P2135 2135 — — —EC-569
APP SENSOR P2138 2138 — — —EC-576
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTest value/
Test limit
(GST only)1st trip DTCReference
page CONSULT-II
GST*
2ECM*3

TROUBLE DIAGNOSIS
EC-81
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Revision: 2004 November 2004 FX35/FX45
Priority Detected items (DTC)
1

U1000 U1001 CAN communication line

P0101 P0102 P0103 Mass air flow sensor

P0112 P0113 P0127 Intake air temperature sensor

P0117 P0118 P0125 Engine coolant temperature sensor

P0128 Thermostat function

P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor

P0181 P0182 P0183 Fuel tank temperature sensor

P0327 P0328 Knock sensor

P0335 Crankshaft position sensor (POS)

P0340 P0345 Camshaft position sensor (PHASE)

P0460 P0461 P0462 P0463 Fuel level sensor

P0500 Vehicle speed sensor

P0605 ECM

P0705 Park/Neutral position (PNP) switch

P1229 Sensor power supply

P1610 - P1615 NATS

P1706 Park/Neutral position (PNP) switch

P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
2

P0031 P0032 P0051 P0052 Heated oxygen sensor 1 heater

P0037 P0038 P0057 P0058 Heated oxygen sensor 2 heater

P0132 P0133 P0134 P0152 P0153 P0154 P1143 P1144 P1163 P1164 Heated oxygen sensor 1

P0138 P0139 P0158 P0159 P1146 P1147 P1166 P1167 Heated oxygen sensor 2

P0441 EVAP control system purge flow monitoring

P0444 P0445 P1444 EVAP canister purge volume control solenoid valve

P0447 P1446 EVAP canister vent control valve

P0451 P0452 P0453 EVAP control system pressure sensor

P0550 Power steering pressure sensor

P0710 P0720 P0725 P0740 P0744 P0745 P1705 P1716 P1730 P1752 P1754 P1757 P1759 P1762 P1764 P1767
P1769 P1772 P1774 A/T related sensors, solenoid valves and switches

P1065 ECM power supply

P 1111 P 1136 Intake valve timing control solenoid valve

P1122 Electric throttle control function

P1124 P1126 P1128 Electric throttle control actuator

P1217 Engine over temperature (OVERHEAT)

P1805 Brake switch
3

P0011 P0021 Intake valve timing control

P0171 P0172 P0174 P0175 Fuel injection system function

P0300 - P0306 Misfire

P0420 P0430 Three way catalyst function

P0442 P0455 P0456 EVAP control system

P0506 P0507 Idle speed control system

P1121 Electric throttle control actuator

P1148 P1168 Closed loop control

P1211 TCS control unit

P1212 TCS communication line

P1564 ICC steering switch/ASCD steering switch

P1568 ICC command valve

P1572 ICC brake switch/ASCD brake switch

P1574 ICC vehicle speed sensor/ASCD vehicle speed sensor

EC-108
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
99 G/YICC steering switch
(models with ICC system)[Ignition switch: ON]

ICC steering switch: OFFApproximately 4.3V
[Ignition switch: ON]

ON/OFF(MAIN) switch: PressedApproximately 0V
[Ignition switch: ON]

CANCEL switch: PressedApproximately 1.3V
[Ignition switch: ON]

DISTANCE switch: PressedApproximately 2.2V
[Ignition switch: ON]

COAST/SET switch: PressedApproximately 3.0V
[Ignition switch: ON]

ACCEL/RESUME switch: PressedApproximately 3.7V
99 G/YASCD steering switch
(models with ASCD system)[Ignition switch: ON]

ASCD steering switch: OFFApproximately 4.0V
[Ignition switch: ON]

ON/OFF(MAIN) switch: PressedApproximately 0V
[Ignition switch: ON]

CANCEL switch: PressedApproximately 1.0V
[Ignition switch: ON]

COAST/SET switch: PressedApproximately 2.0V
[Ignition switch: ON]

ACCEL/RESUME switch: PressedApproximately 3.0V
101 P/L Stop lamp switch[Ignition switch: OFF]

Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]

Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
102 LG/B PNP switch[Ignition switch: ON]

Shift lever: P or NApproximately 0V
[Ignition switch: ON]

Except above positionBATTERY VOLTAGE
(11 - 14V)
104 L/OR Throttle control motor relay[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]0 - 1.0V
106 R/BAccelerator pedal position
sensor 1[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully released0.5 - 1.0V
[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully depressed3.9 - 4.7V
107 PU/WFuel tank temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with fuel
tank temperature.
108 SBICC brake switch
(models with ICC system)
ASCD brake switch
(models with ASCD system)[Ignition switch: ON]

Brake pedal: DepressedApproximately 0V
[Ignition switch: ON]

Brake pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)

EC-110
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45

Te s t v a l u e s

Others
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOSTIC
RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*1FREEZE
FRAME
DATA*2SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
INPUT
Crankshaft position sensor (POS)××××
Camshaft position sensor (PHASE)××××
Mass air flow sensor×××
Engine coolant temperature sensor×××××
Heated oxygen sensor 1×××××
Heated oxygen sensor 2×××××
Vehicle speed sensor××××
Accelerator pedal position sensor×××
Throttle position sensor×××
Fuel tank temperature sensor××××
EVAP control system pressure
sensor×××
Intake air temperature sensor××××
Knock sensor×
Refrigerant pressure sensor××
Closed throttle position switch
(accelerator pedal position sensor
signal)××
Air conditioner switch××
Park/neutral position (PNP) switch×××
Stop lamp switch×××
Power steering pressure sensor×××
Battery voltage××
Load signal××
Fuel level sensor×××
ICC steering switch×××
ASCD steering switch×××
ICC brake switch×××
ASCD brake switch×××
Snow mode switch××

TROUBLE DIAGNOSIS
EC-115
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Revision: 2004 November 2004 FX35/FX45FUEL T/TEMP SE
[°C] or [°F]×
The fuel temperature (determined by the
signal voltage of the fuel tank temperature
sensor) is displayed.
INT/A TEMP SE
[°C] or [°F]××

The intake air temperature (determined by
the signal voltage of the intake air tempera-
ture sensor) is indicated.
EVAP SYS PRES [V]×

The signal voltage of EVAP control system
pressure sensor is displayed.
FUEL LEVEL SE [V]×

The signal voltage of the fuel level sensor is
displayed.
START SIGNAL
[ON/OFF]××

Indicates start signal status [ON/OFF] com-
puted by the ECM according to the signals
of engine speed and battery voltage.
After starting the engine, [OFF] is dis-
played regardless of the starter sig-
nal.
CLSD THL POS
[ON/OFF]××

Indicates idle position [ON/OFF] computed
by ECM according to the accelerator pedal
position sensor signal.
AIR COND SIG
[ON/OFF]××

Indicates [ON/OFF] condition of the air con-
ditioner switch as determined by the air
conditioner signal.
P/N POSI SW
[ON/OFF]××

Indicates [ON/OFF] condition from the park/
neutral position (PNP) switch signal.
PW/ST SIGNAL
[ON/OFF]××

[ON/OFF] condition of the power steering
system (determined by the signal voltage of
the power steering pressure sensor signal)
is indicated.
LOAD SIGNAL
[ON/OFF]××

Indicates [ON/OFF] condition from the elec-
trical load signal.
ON: Rear window defogger switch is ON
and/or lighting switch is in 2nd position.
OFF: Both rear window defogger switch
and lighting switch are OFF.
SNOW MODE SW
[ON/OFF]

Indicates [ON/OFF] condition from the
snow mode switch signal.
IGNITION SW
[ON/OFF]×

Indicates [ON/OFF] condition from ignition
switch signal.
HEATER FAN SW
[ON/OFF]×

Indicates [ON/OFF] condition from the
heater fan switch signal.
BRAKE SW
[ON/OFF]

Indicates [ON/OFF] condition from the stop
lamp switch signal.
INJ PULSE-B1
[msec]×

Indicates the actual fuel injection pulse
width compensated by ECM according to
the input signals.
When the engine is stopped, a cer-
tain computed value is indicated.
INJ PULSE-B2
[msec]
IGN TIMING [BTDC]×

Indicates the ignition timing computed by
ECM according to the input signals.
When the engine is stopped, a cer-
tain value is indicated.
CAL/LD VALUE [%]

Calculated load value indicates the value of
the current air flow divided by peak air flow.
MASS AIRFLOW
[g·m/s]

Indicates the mass air flow computed by
ECM according to the signal voltage of the
mass air flow sensor. Monitored item [Unit]ECM
INPUT
SIG-
NALSMAIN
SIG-
NALSDescription Remarks

TROUBLE DIAGNOSIS
EC-117
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Revision: 2004 November 2004 FX35/FX45TRVL AFTER MIL
[km] or [mile]
Distance traveled while MIL is activated.
O2SEN HTR DTY
[%]

Indicates the heated oxygen sensor 1
heater control value computed by the ECM
according to the input signals.
AC PRESS SEN [V]

The signal voltage from the refrigerant
pressure sensor is displayed.
VHCL SPEED SE
[km/h] or [mph]

The vehicle speed computed from the vehi-
cle speed signal sent from TCM is dis-
played.
SET VHCL SPD
[km/h] or [mph]

The preset vehicle speed is displayed.
MAIN SW
[ON/OFF]

Indicates [ON/OFF] condition from ON/
OFF(MAIN) switch signal.
CANCEL SW
[ON/OFF]

Indicates [ON/OFF] condition from CAN-
CEL switch signal.
RESUME/ACC SW
[ON/OFF]

Indicates [ON/OFF] condition from ACCEL/
RESUME switch signal.
SET SW
[ON/OFF]

Indicates [ON/OFF] condition from COAST/
SET switch signal.
BRAKE SW1 SW
[ON/OFF]

Indicates [ON/OFF] condition from ASCD
brake switch signal.
BRAKE SW2 SW
[ON/OFF]

Indicates [ON/OFF] condition of stop lamp
switch signal.
VHCL SPD CUT
[NON/CUT]

Indicates the vehicle cruise condition.
NON: Vehicle speed is maintained at the
ASCD set speed.
CUT: Vehicle speed increased to exces-
sively high compared with the ASCD set
speed, and ASCD operation is cut off.
LO SPEED CUT
[NON/CUT]

Indicates the vehicle cruise condition.
NON: Vehicle speed is maintained at the
ASCD set speed.
CUT: Vehicle speed decreased to exces-
sively low compared with the ASCD set
speed, and ASCD operation is cut off.
AT OD MONITOR
[ON/OFF]

Indicates [ON/OFF] condition of A/T O/D
according to the input signal from the TCM.
AT OD CANCEL
[ON/OFF]

Indicates [ON/OFF] condition of A/T O/D
cancel signal sent from the TCM.
CRUISE LAMP
[ON/OFF]

Indicates [ON/OFF] condition of CRUISE
lamp determined by the ECM according to
the input signals.
SET LAMP
[ON/OFF]

Indicates [ON/OFF] condition of SET lamp
determined by the ECM according to the
input signals. Monitored item [Unit]ECM
INPUT
SIG-
NALSMAIN
SIG-
NALSDescription Remarks