2007 INFINITI FX35 Service Manual

catalytic converter door lock cruise control automatic transmission battery replacement sensor

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INFINITI FX35 2007 Service Manual DTC P1574 ASCD VEHICLE SPEED SENSOR EC-1225
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Revision: 2006 July 2007 FX35/FX45
DTC P1574 ASCD VEHICLE SPEED SENSORPFP:31036
Component DescriptionNBS004

DTC P1574 ASCD VEHICLE SPEED SENSOR EC-1225
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Revision: 2006 July 2007 FX35/FX45
DTC P1574 ASCD VEHICLE SPEED SENSORPFP:31036
Component DescriptionNBS004ES
The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from “unified
meter and A/C amp.”, and the other is from TCM (Transmission control module). The ECM uses these signals
for ASCD control. Refer to EC-697, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD)" for ASCD functions.
On Board Diagnosis LogicNBS004ET
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:
If DTC P1574 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-820, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
If DTC P1574 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to EC-823, "
DTC U1010 CAN COMMUNICATION" .
If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500.
Refer to EC-1133, "
DTC P0500 VSS"
If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-1148, "
DTC P0605 ECM"
DTC Confirmation ProcedureNBS004EU
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Step 3 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test
is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine (VDC switch OFF).
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Drive the vehicle at more than 40 km/h (25 MPH).
4. If DTC is detected, go to EC-1226, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
P1574
1574 ASCD vehicle speed
sensor ECM detects a difference between two vehicle
speed signals is out of the specified range.
Harness or connectors
(The CAN communication line is open or
shorted.)
Unified meter and A/C amp.
ABS actuator and electric unit (control unit)
Wheel sensor
TCM
ECM
PBIB2673E

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INFINITI FX35 2007 Service Manual EC-1226
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DTC P1574 ASCD VEHICLE SPEED SENSOR
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS004EV
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT- 4 0
.
OK or NG
OK >> GO

Page 2603 of 4366

INFINITI FX35 2007 Service Manual DTC P1715 INPUT SPEED SENSOR (TURBINE REVOLUTION SENSOR) EC-1227
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Revision: 2006 July 2007 FX35/FX45
DTC P1715 INPUT SPEED SENSOR (TURBINE REVOLUTION SE

DTC P1715 INPUT SPEED SENSOR (TURBINE REVOLUTION SENSOR) EC-1227
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Revision: 2006 July 2007 FX35/FX45
DTC P1715 INPUT SPEED SENSOR (TURBINE REVOLUTION SENSOR)PFP:31935
DescriptionNBS004LL
ECM receives turbine revolution sensor signal from TCM through CAN communication line. ECM uses this
signal for engine control.
CONSULT-II Reference Value in Data Monitor ModeNBS004LM
Specification data are reference values.
On Board Diagnosis LogicNBS004LN
NOTE:
If DTC P1715 is displayed with DTC U1000, U1001 first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-820, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
If DTC P1715 is displayed with DTC U1010 first perform the trouble diagnosis for DTC U1010. Refer
to EC-823, "
DTC U1010 CAN COMMUNICATION" .
If DTC P1715 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-1148, "
DTC P0605 ECM" .
If DTC P1715 is displayed with DTC P0335, first perform the trouble diagnosis for DTC P0335.
Refer to EC-1031, "
DTC P0335 CKP SENSOR (POS)" .
If DTC P1715 is displayed with DTC P0340, first perform the trouble diagnosis for DTC P0340.
Refer to EC-1038, "
DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)" .
The MIL will not lights up for this diagnosis.
Diagnostic ProcedureNBS004LO
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT- 4 0 , "
OBD-II Diagnostic Trouble Code (DTC)" .
OK or NG
OK >> GO TO 2.
NG >> Perform trouble shooting relevant to DTC indicated.
2. REPLACE TCM
Replace TCM. Refer to AT- 4 4 , "
TROUBLE DIAGNOSIS" .
>> INSPECTION END
MONITOR ITEM CONDITION SPECIFICATION
I/P PULLY SPD
Vehicle speed: More than 20 km/h (12 MPH) Almost the same speed as
the tachometer indication
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1715
1715 Input speed sensor
(Turbine revolution sen-
sor)
(TCM output) Turbine revolution sensor signal is differ-
ent from the theoretical value calculated
by ECM from revolution sensor signal
and engine rpm signal.
Harness or connectors
(The CAN communication line is open or
shorted)
Harness or connectors
(Turbine revolution sensor circuit is open or
shorted)
TCM

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INFINITI FX35 2007 Service Manual EC-1228
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DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
DTC P1800 VIAS CONTROL SOLENOID VALVEPFP:14955
Component DescriptionNBS004FC
The VIAS control solenoid valve (

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INFINITI FX35 2007 Service Manual DTC P1800 VIAS CONTROL SOLENOID VALVE EC-1229
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Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS004FG
TBWM1358E

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INFINITI FX35 2007 Service Manual EC-1230
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DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not u

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INFINITI FX35 2007 Service Manual DTC P1800 VIAS CONTROL SOLENOID VALVE EC-1231
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Revision: 2006 July 2007 FX35/FX45
3. CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AN

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INFINITI FX35 2007 Service Manual EC-1232
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DTC P1800 VIAS CONTROL SOLENOID VALVE
Revision: 2006 July 2007 FX35/FX45
Removal and InstallationNBS004FJ
VIAS CONTROL SOLENOID VALVE
Refer to EM-179, "INTAKE MANIFOLD" .

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