2005 INFINITI FX35 Service Manual

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Page 2665 of 4731

INFINITI FX35 2005 Service Manual EC-1272
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DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
DTC Confirmation ProcedureABS00E5I
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has be

Page 2666 of 4731

INFINITI FX35 2005 Service Manual DTC P1572 ASCD BRAKE SWITCH EC-1273
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Revision: 2005 July 2005 FX
Wiring Diagram ABS007UQ
TBWM0422E

Page 2667 of 4731

INFINITI FX35 2005 Service Manual EC-1274
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DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground ter

Page 2668 of 4731

INFINITI FX35 2005 Service Manual DTC P1572 ASCD BRAKE SWITCH EC-1275
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Revision: 2005 July 2005 FX
2. CHECK OVERALL FUNCTION-II
With CONSULT-II
Check “BRAKE SW2” indication in “

Page 2669 of 4731

INFINITI FX35 2005 Service Manual EC-1276
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DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connecto

Page 2670 of 4731

INFINITI FX35 2005 Service Manual DTC P1572 ASCD BRAKE SWITCH EC-1277
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Revision: 2005 July 2005 FX
7. CHECK ASCD BRAKE SWITCH
Refer to EC-1278, "
Component Inspection"
OK or NG
OK

Page 2671 of 4731

INFINITI FX35 2005 Service Manual EC-1278
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DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
11 . DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and

Page 2672 of 4731

INFINITI FX35 2005 Service Manual DTC P1574 ICC VEHICLE SPEED SENSOR EC-1279
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Revision: 2005 July 2005 FX
DTC P1574 ICC VEHICLE SPEED SENSORPFP:31036
Component DescriptionABS007UT
The EC

DTC P1574 ICC VEHICLE SPEED SENSOR EC-1279
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Revision: 2005 July 2005 FX
DTC P1574 ICC VEHICLE SPEED SENSORPFP:31036
Component DescriptionABS007UT
The ECM receives two vehicle speed 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 ICC
control. Refer to ACS-6, "
DESCRIPTION" for ICC functions.
On Board Diagnosis LogicABS007UU
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-862, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500.
Refer to EC-1123, "
DTC P0500 VSS" .
If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-1134, "
DTC P0605 ECM".
DTC Confirmation ProcedureABS007UV
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 (25MPH).
4. If DTC is detected, go to EC-1280, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
P1574
1574 ICC 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
SEF058Y

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