Infiniti M35/M45 Y50. Manual — part 615
DTC P0122, P0123 TP SENSOR
EC-933
[VK45DE]
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EC
DTC Confirmation Procedure
NBS005D3
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 8V 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-935, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
EC-934
[VK45DE]
DTC P0122, P0123 TP SENSOR
Wiring Diagram
NBS005D4
TBWT1491E
DTC P0122, P0123 TP SENSOR
EC-935
[VK45DE]
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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
NBS005D5
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten 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
50
W
Throttle position sensor 1
[Ignition switch: ON]
●
Engine: Stopped
●
Selector lever: D
●
Accelerator pedal: Fully released
More than 0.36V
[Ignition switch: ON]
●
Engine: Stopped
●
Selector lever: D
●
Accelerator pedal: Fully depressed
Less than 4.75V
66
B
Sensor ground
(Throttle position sensor)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
69
R
Throttle position sensor 2
[Ignition switch: ON]
●
Engine: Stopped
●
Selector lever: D
●
Accelerator pedal: Fully released
Less than 4.75V
[Ignition switch: ON]
●
Engine: Stopped
●
Selector lever: D
●
Accelerator pedal: Fully depressed
More than 0.36V
91
BR
Sensor power supply
(APP sensor 2)
[Ignition switch: ON]
Approximately 5V
1.
Body ground M70
2.
Body ground M16
PBIB2782E
EC-936
[VK45DE]
DTC P0122, P0123 TP SENSOR
2.
CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-I
1.
Disconnect electric throttle control actuator (1) harness connec-
tor.
–
Illustration shows the view with intake air duct removed.
2.
Turn ignition switch ON.
3.
Check voltage between electric throttle control actuator terminal
1 and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 3.
3.
CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between electric throttle control actuator terminal 1 and ECM terminal 47.
Refer to Wiring Diagram.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit.
4.
CHECK THROTTLE POSITION 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 5.
NG
>> Repair short to ground or short to power in harness or connectors.
5.
CHECK APP SENSOR
Refer to
EC-1349, "Component Inspection"
OK or NG
OK
>> GO TO 11.
NG
>> GO TO 6.
PBIB2690E
Voltage: Approximately 5V
PBIA9580J
Continuity should exist.
ECM terminal
Sensor terminal
Reference Wiring Diagram
47
Electric throttle control actuator terminal 1
91
APP sensor terminal 5
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