Nissan Frontier D22. Manual — part 620
DTC P0510 CLOSED TP SWITCH
EC-1583
[VG33ER]
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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 the ECM terminals, such as the ground.
Diagnostic Procedure
UBS00DZG
1.
CHECK CLOSED THROTTLE POSITION SWITCH POWER SUPPLY CIRCUIT
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
CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness for open or short between throttle position switch and ECM relay
●
Harness for open or short between throttle position switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
28
BR/W
Throttle position switch
(Closed position)
[Engine is running]
●
Warm-up condition
●
More than -40.0 kpa (-300 mmHg, -11.81 inHg)
of vacuum is applied to the throttle opener with
a hand vacuum pump
●
Accelerator pedal is fully released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
●
Engine stopped
●
Accelerator pedal is depressed
Approximately 0V
AEC653A
Voltage: Battery voltage
SEF715U
EC-1584
[VG33ER]
DTC P0510 CLOSED TP SWITCH
3.
CHECK CLOSED THROTTLE POSITION SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 28 and throttle position switch terminal 4.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK IGNITION TIMING AND ENGINE IDLE SPEED
Check the following items. Refer to
With CONSULT-II>>GO TO 5.
Without CONSULT-II>>GO TO 6.
5.
CHECK CLOSED THROTTLE POSITION SWITCH
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF.
3.
Turn ignition switch ON.
4.
Select “DATA MONITOR” mode with CONSULT-II.
5.
Check indication of “CLSD THL/P SW”.
Measurement must be made with closed throttle position switch installed in vehicle.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 7.
Continuity should exist.
Items
Specifications
Ignition timing
10
° ± 5° BTDC
Base idle speed
700
± 50 rpm (in P or N position)
Target idle speed
750
± 50 rpm (in P or N position)
Throttle valve conditions
CLSD THL/P SW
Completely closed
ON
Partially open or completely closed
OFF
DTC P0510 CLOSED TP SWITCH
EC-1585
[VG33ER]
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EC
6.
CHECK CLOSED THROTTLE POSITION SWITCH
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF.
3.
Disconnect closed throttle position switch harness connector.
4.
Check continuity between closed throttle position switch terminals 4 and 5.
Resistance measurement must be made with closed throttle position switch installed in vehicle.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 7.
7.
ADJUST THROTTLE POSITION SWITCH
Check the following items. Refer to
If it is impossible to adjust closed throttle position switch in Basic Inspection, replace closed throttle position
switch.
OK or NG
OK (with CONSULT-II)>>GO TO 8.
OK (without CONSULT-II)>>GO TO 9.
NG
>> Replace throttle position switch.
Throttle valve conditions
Continuity
Completely closed
Yes
Partially open or completely closed
No
BBIA0423E
Items
Specifications
Ignitions timing
10
° ± 5° BTDC
Base idle speed
700
± 50 rpm (in P or N position)
Closed throttle position switch idle
position adjustment
Feeler gauge thickness and switch
condition
0.3 mm (0.012 in): ON
0.4 mm (0.016 in): OFF
Target idle speed
750
± 50 rpm (in P or N position)
EC-1586
[VG33ER]
DTC P0510 CLOSED TP SWITCH
8.
CHECK THROTTLE POSITION SENSOR
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine (ignition switch OFF).
3.
Turn ignition switch ON.
4.
Select “DATA MONITOR” mode with CONSULT-II.
5.
Check voltage of “THRTL POS SEN”.
Voltage measurement must be made with throttle position sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to
OK or NG
OK
>> GO TO 10.
NG
>> Replace throttle position sensor.
9.
CHECK THROTTLE POSITION SENSOR
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine (ignition switch OFF).
3.
Turn ignition switch ON.
4.
Check voltage between ECM terminal 23 (Throttle position sensor signal) and ground.
Voltage measurement must be made with throttle position sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to
OK or NG
OK
>> GO TO 10.
NG
>> Replace throttle position sensor.
10.
CHECK INTERMITTENT INCIDENT
EC-1297, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END.
Throttle valve conditions
Voltage [V]
Completely closed
0.15 - 0.85 (a)
Partially open
Between (a) and (b)
Completely open
3.5 - 4.7 (b)
Throttle valve conditions
Voltage [V]
Completely closed
0.15 - 0.85 (a)
Partially open
Between (a) and (b)
Completely open
3.5 - 4.7 (b)
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