2004 INFINITI QX56 Electric

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Page 1734 of 3371

INFINITI QX56 2004  Factory Service Manual DTC P1574 ICC VEHICLE SPEED SENSOR
EC-543
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Revision: August 20072004 QX56
Diagnostic ProcedureUBS00HZ9
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT - 3 9 ,  "
OBD-II

Page 1735 of 3371

INFINITI QX56 2004  Factory Service Manual EC-544Revision: August 2007
DTC P1574 ASCD VEHICLE SPEED SENSOR
2004 QX56
DTC P1574 ASCD VEHICLE SPEED SENSORPFP:31036
Component DescriptionUBS00HBM
The ECM receives two vehicle speed sensor signals v

Page 1736 of 3371

INFINITI QX56 2004  Factory Service Manual DTC P1574 ASCD VEHICLE SPEED SENSOR
EC-545
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MA
EC
Revision: August 20072004 QX56
Diagnostic ProcedureUBS00HBP
1. CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT - 3 9 ,  "
OBD-II

Page 1742 of 3371

INFINITI QX56 2004  Factory Service Manual DTC P1805 BRAKE SWITCH
EC-551
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EC
Revision: August 20072004 QX56
DTC P1805 BRAKE SWITCHPFP:25320
DescriptionUBS00HBX
Brake switch signal is applied to the ECM through the stop la

Page 1747 of 3371

INFINITI QX56 2004  Factory Service Manual EC-556Revision: August 2007
DTC P2122, P2123 APP SENSOR
2004 QX56
DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionUBS00HC4
The accelerator pedal position sensor is installed on the upper end

Page 1753 of 3371

INFINITI QX56 2004  Factory Service Manual EC-562Revision: August 2007
DTC P2127, P2128 APP SENSOR
2004 QX56
DTC P2127, P2128 APP SENSORPFP:18002
Component DescriptionUBS00HCC
The accelerator pedal position sensor is installed on the upper end

Page 1757 of 3371

INFINITI QX56 2004  Factory Service Manual EC-566Revision: August 2007
DTC P2127, P2128 APP SENSOR
2004 QX56
2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition

Page 1758 of 3371

INFINITI QX56 2004  Factory Service Manual DTC P2127, P2128 APP SENSOR
EC-567
C
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MA
EC
Revision: August 20072004 QX56
6. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform