Nissan Frontier D22. Manual — part 326
DTC P0510 CTP SWITCH
EC-407
[KA24DE]
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EC
DTC P0510 CTP SWITCH
PFP:22620
Component Description
UBS00D9E
A closed throttle position switch and wide open throttle position
switch are built into the throttle position sensor unit. The wide open
throttle position switch is used only for A/T control.
When the throttle valve is in the closed position, the closed throttle
position switch sends a voltage signal to the ECM. The ECM only
uses this signal to open or close the EVAP canister purge control
valve when the throttle position sensor is malfunctioning.
On Board Diagnosis Logic
UBS00D9F
DTC Confirmation Procedure
UBS00D9G
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.
WITH CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Select “CLSD THL/P SW” in “DATA MONITOR” mode with
CONSULT-II and check the indication under the following condi-
tions.
If the result is NG, go to
EC-410, "Diagnostic Procedure"
If OK, go to following step.
3.
Drive the vehicle for at least 5 consecutive seconds under the
following condition.
4.
If 1st trip DTC is detected, go to
EC-410, "Diagnostic Procedure"
.
SEF505V
DTC No.
Trouble Diagnosis Name
DTC Detecting Condition
Possible Cause
P0510
Closed throttle position switch
circuit
Battery voltage from the closed throttle
position switch is sent to ECM with the
throttle valve opened.
●
Harness or connectors
(The closed throttle position switch circuit
is shorted.)
●
Closed throttle position switch
●
Throttle position sensor
Condition
Signal indication
Throttle valve: Idle position
ON
Throttle valve: Slightly open
OFF
SEF197Y
THRTL POS SEN
More than 2.5V
VHCL SPEED SE
More than 4 km/h (2 MPH)
Selector lever
Suitable position
Driving pattern
Driving vehicle uphill (Increased engine load) will
help maintain the driving conditions required for
this test.
SEF198Y
EC-408
[KA24DE]
DTC P0510 CTP SWITCH
Overall Function Check
UBS00D9H
Use this procedure to check the overall function of the closed throttle position switch circuit. During this check,
a 1st trip DTC might not be confirmed.
WITH GST
1.
Start engine and warm it up to normal operating temperature.
2.
Check the voltage between ECM terminal 28 (Closed throttle
position switch signal) and ground under the following condi-
tions.
3.
If NG, go to
EC-410, "Diagnostic Procedure"
.
Condition
Voltage
At idle
Battery voltage
At 2,000 rpm
Approximately 0 - 1V
SEF422Q
DTC P0510 CTP SWITCH
EC-409
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EC
Wiring Diagram
UBS00D9I
BBWA0450E
EC-410
[KA24DE]
DTC P0510 CTP SWITCH
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
UBS00D9J
1.
CHECK POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect throttle position switch harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between terminal 5 and engine ground with CON-
SULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M59, F27
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Fuse block (J/B) connector M27
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10A fuse
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Harness for open or short between throttle position switch and fuse
>> Repair harness or connectors.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
28
BR/W
Throttle position switch
(Closed position)
[Ignition switch: ON]
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Warm-up condition
●
Accelerator pedal is released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
●
Accelerator pedal is depressed
Approximately 0V
SEF158S
Voltage
: Battery voltage
SEF715U
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