2005 INFINITI FX35 Service Manual

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INFINITI FX35 2005 Service Manual EC-832
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TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
*: Leaving cooling fan OFF with CONSULT-II while engine is running may cause the engine to overheat.
DTC & SRT CONFIRMATION MODE
SRT STAT

EC-832
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TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
*: Leaving cooling fan OFF with CONSULT-II while engine is running may cause the engine to overheat.
DTC & SRT CONFIRMATION MODE
SRT STATUS Mode
For details, refer to EC-751, "SYSTEM READINESS TEST (SRT) CODE" .
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
POWER BAL-
ANCE
Engine: After warming up, idle
the engine.
A/C switch OFF
Shift lever: N
Cut off each injector signal one at
a time using CONSULT-II. Engine runs rough or dies.
Harness and connectors
Compression
Fuel injector
Power transistor
Spark plug
Ignition coil
COOLING FAN*
Ignition switch: ON
Turn the cooling fan “HI”, “MID”
and “OFF” using CONSULT-II. Cooling fan moves and stops.
Harness and connectors
Cooling fan motor
IPDM E/R
ENG COOLANT
TEMP
Engine: Return to the original
trouble condition
Change the engine coolant tem-
perature using CONSULT-II. If trouble symptom disappears, see
CHECK ITEM.
Harness and connectors
Engine coolant temperature sen-
sor
Fuel injector
FUEL PUMP
RELAY
Ignition switch: ON (Engine
stopped)
Turn the fuel pump relay ON and
OFF using CONSULT-II and lis-
ten to operating sound. Fuel pump relay makes the operat-
ing sound.Harness and connectors
Fuel pump relay
VIAS SOL VALVE
Ignition switch: ON
Turn solenoid valve ON and OFF
with CONSULT-II and listen to
operating sound. Solenoid valve makes an operating
sound.Harness and connectors
Solenoid valve
PURG VOL
CONT/V
Engine: After warming up, run
engine at 1,500 rpm.
Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-II. Engine speed changes according to
the opening percent.Harness and connectors
Solenoid valve
FUEL/T TEMP
SEN
Change the fuel tank temperature using CONSULT-II.
VENT CON-
TROL/V
Ignition switch: ON (Engine
stopped)
Turn solenoid valve ON and OFF
with the CONSULT-II and listen
to operating sound. Solenoid valve makes an operating
sound.Harness and connectors
Solenoid valve
V/T ASSIGN
ANGLE
Engine: Return to the original
trouble condition
Change intake valve timing using
CONSULT-II. If trouble symptom disappears, see
CHECK ITEM.
Harness and connectors
Intake valve timing control sole-
noid valve
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)

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INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS EC-833
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Revision: 2005 July 2005 FX
DTC WORK SUPPORT Mode
*: DTC P1442 and P1456 does not apply to S50 models but appears in DTC Work

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INFINITI FX35 2005 Service Manual EC-834
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TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
REAL TIME DIAGNOSIS IN DATA MONITOR MODE (RECORDING VEHICLE DATA)
Description
CONSULT-II has two kinds of triggers and they can be select

Page 2228 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS EC-835
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Revision: 2005 July 2005 FX
Operation
1. “AUTO TRIG”
While trying to detect the DTC/1st trip DTC by performing the “DTC

Page 2229 of 4731

INFINITI FX35 2005 Service Manual EC-836
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TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
FUNCTION
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect “GST” to data link connector, which is located under LH dash

EC-836
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TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
FUNCTION
INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect “GST” to data link connector, which is located under LH dash panel near the hood opener handle.
Diagnostic test mode Function
Service $01 READINESS TESTS This mode gains access to current emission-related data values, including analog inputs
and outputs, digital inputs and outputs, and system status information.
Service $02 (FREEZE DATA) This mode gains access to emission-related data value which were stored by ECM during
the freeze frame. For details, refer to EC-751, "
FREEZE FRAME DATA AND 1ST TRIP
FREEZE FRAME DATA" .
Service $03 DTCs This mode gains access to emission-related power train trouble codes which were stored
by ECM.
Service $04 CLEAR DIAG INFO This mode can clear all emission-related diagnostic information. This includes:
Clear number of diagnostic trouble codes (Service $01)
Clear diagnostic trouble codes (Service $03)
Clear trouble code for freeze frame data (Service $01)
Clear freeze frame data (Service $02)
Reset status of system monitoring test (Service $01)
Clear on board monitoring test results (Service $06 and $07)
Service $06 (ON BOARD TESTS) This mode accesses the results of on board diagnostic monitoring tests of specific com-
ponents/systems that are not continuously monitored.
Service $07 (ON BOARD TESTS) This mode enables the off board test drive to obtain test results for emission-related pow-
ertrain components/systems that are continuously monitored during normal driving condi-
tions.
Service $08 — This mode can close EVAP system in ignition switch ON position (Engine stopped). When
this mode is performed, EVAP canister vent control valve can be closed.
In the following conditions, this mode cannot function.
Low ambient temperature
Low battery voltage
Engine running
Ignition switch OFF
Low fuel temperature
Too much pressure is applied to EVAP system
Service $09 (CALIBRATION ID) This mode enables the off-board test device to request specific vehicle information such
as Vehicle Identification Number (VIN) and Calibration IDs.
PBIB1503E

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INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS EC-837
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Revision: 2005 July 2005 FX
3. Turn ignition switch ON.
4. Enter the program according to instruction on the screen or in th

Page 2231 of 4731

INFINITI FX35 2005 Service Manual EC-838
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
CONSULT-II Reference Value in Data MonitorABS007I9
Remarks:
Specification data are reference values.
Specification data are outp

EC-838
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
CONSULT-II Reference Value in Data MonitorABS007I9
Remarks:
Specification data are reference values.
Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
i.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the specification da ta in
spite of the ignition timing not being adjusted to the specification data. This IGN TIMING monitors the data calculated by the ECM
according to the signals input from the camshaft position sensor and other ignition timing related sensors.
MONITOR ITEM CONDITION SPECIFICATION
ENG SPEED
Run engine and compare CONSULT-II value with the tachometer indication. Almost the same speed as
the tachometer indication.
MAS A/F SE-B1 See EC-844, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
B/FUEL SCHDL See EC-844, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
A/F ALPHA-B1
A/F ALPHA-B2 See
EC-844, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
COOLAN TEMP/S
Engine: After warming up More than 70 °C (158 °F)
HO2S1 (B1)
HO2S1 (B2)
Engine: After warming up Maintaining engine speed at 2,000 rpm 0 - 0.3V
←→ Approx. 0.6 -
1.0V
HO2S2 (B1)
HO2S2 (B2)
Engine: After warming up
After keeping engine speed
between 3,500 and 4,000 rpm for
1 minute and at idle for 1 minute
under no load Revving engine from idle up to 3,000 rpm
quickly. 0 - 0.3V
←→ Approx. 0.6 -
1.0V
HO2S1 MNTR (B1)
HO2S1 MNTR (B2)
Engine: After warming up Maintaining engine speed at 2,000 rpm LEAN
←→ RICH
Changes more than 5 times
during 10 seconds.
HO2S2 MNTR (B1)
HO2S2 MNTR (B2)
Engine: After warming up
After keeping engine speed
between 3,500 and 4,000 rpm for
1 minute and at idle for 1 minute
under no load Revving engine from idle up to 3,000 rpm
quickly. LEAN
←→ RICH
VHCL SPEED SE
Turn drive wheels and compare CONSULT-II value with the speedometer
indication. Almost the same speed as
speedometer indication
BATTERY VOLT
Ignition switch: ON (Engine stopped) 11 - 14V
ACCEL SEN 1
Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released 0.5 - 1.0V
Accelerator pedal: Fully depressed 4.0 - 4.8V
ACCEL SEN 2*
Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released 0.3 - 1.2V
Accelerator pedal: Fully depressed 3.9 - 4.8V
THRTL SEN 1
THRTL SEN 2*
Ignition switch: ON
(Engine stopped)
Selector lever: D Accelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
EVAP SYS PRES
Ignition switch: ON Approx. 1.8 - 4.8V
START SIGNAL
Ignition switch: ON → START → ON OFF → ON → OFF
CLSD THL POS
Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released ON
Accelerator pedal: Slightly depressed OFF
AIR COND SIG
Engine: After warming up, idle
the engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.) ON
P/N POSI SW
Ignition switch: ON Selector lever: P or N ON
Selector lever: Except above OFF
PW/ST SIGNAL
Engine: After warming up, idle
the engine Steering wheel: Not being turned
(Forward direction) OFF
Steering wheel: Being turned ON

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INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS EC-839
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Revision: 2005 July 2005 FX
LOAD SIGNALIgnition switch: ON Rear window defogger switch: ON
and/or
Lighting switch: 2ND posi

TROUBLE DIAGNOSIS EC-839
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Revision: 2005 July 2005 FX
LOAD SIGNALIgnition switch: ON Rear window defogger switch: ON
and/or
Lighting switch: 2ND position ON
Rear window defogger switch and light-
ing switch: OFF OFF
IGNITION SW
Ignition switch: ON → OFF → ON ON → OFF → ON
HEATER FAN SW
Engine: After warming up, idle
the engine Heater fan switch: ON ON
Heater fan switch: OFF OFF
BRAKE SW
Ignition switch: ON Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
INJ PULSE-B1
INJ PULSE-B2
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 7
° - 17 ° BTDC
2,000 rpm 25 ° - 45 ° BTDC
CAL/LD VALUE
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 14% - 33%
2,500 rpm 12% - 25%
MASS AIRFLOW
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 2.0 - 6.0 g·m/s
2,500 rpm 7.0 - 20.0 g·m/s
PURG VOL C/V
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 0%
2,000 rpm —
INT/V TIM (B1)
INT/V TIM (B2)
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle
−5° - 5 °CA
2,000 rpm Approx. 0 ° - 20 °CA
INT/V SOL (B1)
INT/V SOL (B2)
Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle 0% - 2%
2,000 rpm Approx. 25% - 50%
VIAS S/V
Engine speed: Idle Selector lever: P or N
and/or
Engine speed: More than 5,000 rpm ON
Except above OFF
AIR COND RLY
Engine: After warming up, idle
the engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates) ON
FUEL PUMP RLY
For 1 seconds after turning ignition switch: ON
Engine running or cranking ON
Except above OFF
MONITOR ITEM CONDITION SPECIFICATION

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