2004 INFINITI QX56 Factory Service Manual

Page 1769 of 3371

INFINITI QX56 2004  Factory Service Manual EC-578Revision: August 2007
DTC P2138 APP SENSOR
2004 QX56
Wiring DiagramUBS00HCW
BBWA11 70 E

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INFINITI QX56 2004  Factory Service Manual DTC P2138 APP SENSOR
EC-579
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM

Page 1771 of 3371

INFINITI QX56 2004  Factory Service Manual EC-580Revision: August 2007
DTC P2138 APP SENSOR
2004 QX56
2. CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.

Page 1772 of 3371

INFINITI QX56 2004  Factory Service Manual DTC P2138 APP SENSOR
EC-581
C
D
E
F
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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 EC-44,

Page 1773 of 3371

INFINITI QX56 2004  Factory Service Manual EC-582Revision: August 2007
DTC P2138 APP SENSOR
2004 QX56
Component InspectionUBS00HCY
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.

Page 1774 of 3371

INFINITI QX56 2004  Factory Service Manual IGNITION SIGNAL
EC-583
C
D
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EC
Revision: August 20072004 QX56
IGNITION SIGNALPFP:22448
Component DescriptionUBS00HD0
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM

Page 1775 of 3371

INFINITI QX56 2004  Factory Service Manual EC-584Revision: August 2007
IGNITION SIGNAL
2004 QX56
Wiring DiagramUBS00HD1
BBWA1710E

Page 1776 of 3371

INFINITI QX56 2004  Factory Service Manual IGNITION SIGNAL
EC-585
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM groun