Infiniti M35/M45 Y50. Manual — part 538
DTC P2127, P2128 APP SENSOR
EC-625
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC Confirmation Procedure
NBS0056W
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:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Start engine and let it idle for 1 second.
4.
EC-627, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
EC-626
[VQ35DE]
DTC P2127, P2128 APP SENSOR
Wiring Diagram
NBS0056X
TBWT1482E
DTC P2127, P2128 APP SENSOR
EC-627
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure
NBS0056Y
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten two ground screws on the body.
Refer to
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
47
G
Sensor power supply
(Throttle position sensor)
[Ignition switch: ON]
Approximately 5V
82
W
Sensor ground
(APP sensor 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
83
P
Sensor ground
(APP sensor 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
90
L
Sensor power supply
(APP sensor 1)
[Ignition switch: ON]
Approximately 5V
91
BR
Sensor power supply
(APP sensor 2)
[Ignition switch: ON]
Approximately 5V
98
R
Accelerator pedal position
sensor 2
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal: Fully released
0.20 - 0.55V
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal: Fully depressed
1.85 - 2.40V
106
LG
Accelerator pedal position
sensor 1
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal: Fully released
0.4 - 1.1V
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal: Fully depressed
3.7 - 4.8V
1.
Body ground M70
2.
Body ground M16
PBIB2782E
EC-628
[VQ35DE]
DTC P2127, P2128 APP SENSOR
2.
CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1.
Disconnect accelerator pedal position (APP) sensor (1) harness
connector.
2.
Turn ignition switch ON.
3.
Check voltage between APP sensor terminal 5 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 3.
3.
CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between APP sensor terminal 5 and ECM terminal 91.
Refer to Wiring Diagram.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E108, M15
●
Harness for open or short between ECM and accelerator pedal position sensor
>> Repair open circuit.
5.
CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals.
OK or NG
OK
>> GO TO 6.
NG
>> Repair short to ground or short to power in harness or connectors.
PBIB2704E
Voltage: Approximately 5V
PBIA9607J
Continuity should exist.
ECM terminal
Sensor terminal
Reference Wiring Diagram
91
APP sensor terminal 5
47
Electric throttle control actuator terminal 1
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