Infiniti I35 (A33). Manual — part 218
DTC Confirmation Procedure
NHEC1456
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 bat-
tery voltage is more than 10V at idle.
SEF058Y
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)
If DTC is detected, go to “Diagnostic Procedure”, EC-215.
With GST
Follow the procedure “With CONSULT-II” above.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0122, P0123 TP SENSOR
DTC Confirmation Procedure
EC-213
Wiring Diagram
NHEC1337
MEC633E
DTC P0122, P0123 TP SENSOR
Wiring Diagram
EC-214
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.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
58
B
Sensor ground
[Engine is running]
I
Warm-up condition
I
Idle speed
Approximately 0V
83
W
Throttle position sensor
1
[Ignition switch ON]
I
Engine stopped
I
Shift lever position is D
I
Accelerator pedal released
More than 0.36V
[Ignition switch ON]
I
Engine stopped
I
Shift lever position is D
I
Accelerator pedal fully depressed
Less than 4.75V
84
L
Throttle position sensor
2
[Ignition switch ON]
I
Engine stopped
I
Shift lever position is D
I
Accelerator pedal released
Less than 4.75V
[Ignition switch ON]
I
Engine stopped
I
Shift lever position is D
I
Accelerator pedal fully depressed
More than 0.36V
111
R
Sensor power supply
[Ignition switch ON]
Approximately 5V
Diagnostic Procedure
NHEC1338
1
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two engine ground screws.
Refer to “Ground Inspection”, EC-160.
SEC047D
OK or NG
OK
©
GO TO 2.
NG
©
Repair or replace ground connections.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0122, P0123 TP SENSOR
Wiring Diagram (Cont’d)
EC-215
2
CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT
1. Disconnect electric throttle control actuator harness connector.
2. Turn ignition switch ON.
SEC054D
3. Check voltage between electric throttle control actuator terminal 1 and ground with CONSULT-II or tester.
PBIB0082E
Voltage: Approximately 5V
OK or NG
OK
©
GO TO 3.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
3
CHECK THROTTLE POSITION SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between electric throttle control actuator terminal 5 and ECM terminal 58.
Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 5.
NG
©
GO TO 4.
4
DETECT MALFUNCTIONING PART
Check the following.
I
Joint connector-20
I
Harness for open or short between electric throttle control actuator and ECM
©
Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0122, P0123 TP SENSOR
Diagnostic Procedure (Cont’d)
EC-216
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