2004 INFINITI QX56 Factory Service Manual

seats fuel tank capacity fuel reserve fuel additives diagram air condition

Load previous 8 pages

Page 1425 of 3371

INFINITI QX56 2004 Factory Service Manual EC-234Revision: August 2007
DTC P0182, P0183 FTT SENSOR
2004 QX56
4. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors C1, E41
Harness for open or short between ECM and “fuel leve

Page 1426 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P0182, P0183 FTT SENSOR
EC-235
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 4 and 5 by heating with hot

Page 1427 of 3371

INFINITI QX56 2004 Factory Service Manual EC-236Revision: August 2007
DTC P0222, P0223 TP SENSOR
2004 QX56
DTC P0222, P0223 TP SENSORPFP:16119
Component DescriptionUBS00H3I
Electric throttle control actuator consists of throttle control motor

EC-236Revision: August 2007
DTC P0222, P0223 TP SENSOR
2004 QX56
DTC P0222, P0223 TP SENSORPFP:16119
Component DescriptionUBS00H3I
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
CONSULT-II Reference Value in Data Monitor ModeUBS00H3J
Specification data are reference values.
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicUBS00H3K
These self-diagnoses have the one trip detection logic.
FAIL -S AFE M OD E
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
THRTL SEN1
THRTL SEN2*
Ignition switch: ON
(Engine stopped)
Shift lever: DAccelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0222
0222Throttle position sensor
1 circuit low inputAn excessively low voltage from the TP sensor
1 is sent to ECM.
Harness or connectors
(TP sensor 1 circuit is open or shorted.)
(APP sensor 2 circuit is shorted.)
Electric throttle control actuator
(TP sensor 1)
Accelerator pedal position sensor P0223
0223Throttle position sensor
1 circuit high inputAn excessively high voltage from the TP sen-
sor 1 is sent to ECM.
Engine operation condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

Page 1428 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P0222, P0223 TP SENSOR
EC-237
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
DTC Confirmation ProcedureUBS00H3L
NOTE:
If DTC Confirmation Procedure has been previously conducted, always

Page 1429 of 3371

INFINITI QX56 2004 Factory Service Manual EC-238Revision: August 2007
DTC P0222, P0223 TP SENSOR
2004 QX56
Wiring DiagramUBS00H3M
BBWA11 66 E

Page 1430 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P0222, P0223 TP SENSOR
EC-239
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 us

Page 1431 of 3371

INFINITI QX56 2004 Factory Service Manual EC-240Revision: August 2007
DTC P0222, P0223 TP SENSOR
2004 QX56
2. CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-I
1. Disconnect electric throttle control actuator harness connector.
2. Turn

Page 1432 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P0222, P0223 TP SENSOR
EC-241
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: August 20072004 QX56
6. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace the accelerator pedal assembly.
2. Perform EC-44, "
Accelera

Load next 8 pages

Page: < prev 1-10 ... 1393-1400 1401-1408 1409-1416 1417-1424 1425-1432 1433-1440 1441-1448 1449-1456 1457-1464 ... 3376 next >

start stop button airbag off checking oil TPMS reset fuel fill door release trailer