Nissan Primera P11. Instruction — part 268
Component Description
NCEC0287
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 CVT 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.
CONSULT-II Reference Value in Data Monitor
Mode
NFEC0257
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
CLSD THL/P SE
I
Engine: Idle
Throttle valve: Idle position
ON
Throttle valve: Slightly open
OFF
ECM Terminals and Reference Value
NCEC0288
Specification data are reference values and are measured between each terminal and 48 (ECM ground).
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
40
Y
Throttle position switch
(Closed position)
[Engine is running]
I
Accelerator pedal released
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
I
Accelerator pedal depressed
Approximately 0V
On Board Diagnosis Logic
NCEC0289
DTC No.
Malfunction is detected when ...
Check Items (Possible Cause)
P0510
0510
I
Battery voltage from the closed throttle position switch is
sent to ECM with the throttle valve opened.
I
Harness or connectors
(The closed throttle position switch circuit is
shorted.)
I
Closed throttle position switch
I
Throttle position sensor
SEF505V
Throttle position switch
built into throttle
position sensor
Throttle position
switch connector
Throttle position
sensor connector
DTC P0510 CLOSED THROTTLE POSITION SWITCH
(IF SO EQUIPPED)
SR20DE
Component Description
EC-271
DTC Confirmation Procedure
NCEC0290
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 9 seconds
before conducting the next test.
With CONSULT-II
1)
Start engine and warm it up to normal operating temperature.
2)
Check ignition switch “OFF”, wait at least 9 seconds and then
start engine.
3)
Select “CLSD THL/P SW” in “DATA MONITOR” mode.
If “CLSD THL/P SW” is not available, go to step 5.
4)
Check the signal under the following conditions.
Condition
Signal indication
Throttle valve: Idle position
ON
Throttle valve: Slightly open
OFF
If the result is NG, go to “Diagnostic Procedure”, EC-SR-274.
If OK, go to following step.
5)
Select “DATA MONITOR” mode with CONSULT-II.
6)
Drive the vehicle for at least 5 consecutive seconds under the
following condition.
THRTL POS SEN
More than 2.3V
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.
7)
If 1st trip DTC is detected, go to “Diagnostic Procedure”, EC-
SR-274.
Overall Function Check
NCEC0291
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.
Without CONSULT-II
1)
Start engine and warm it up to normal operating temperature.
2)
Check the voltage between ECM terminal 40 (Closed throttle
position switch signal) and ground under the following condi-
tions.
Condition
Voltage
At idle
Battery voltage
At 2,000 rpm
Approximately 0V
3)
If NG, go to “Diagnostic Procedure”, EC-SR-274.
SEF092X
PEF329U
SEF090X
CONNECT
DTC P0510 CLOSED THROTTLE POSITION SWITCH
(IF SO EQUIPPED)
SR20DE
DTC Confirmation Procedure
EC-272
Wiring Diagram
NCEC0292
YEC846
BATTERY
Refer to
EL-POWER.
: Detectable line for DTC
: Non-detectable line for DTC
ECM
RELAY
OFF
CLOSED
WIDE
OPEN
OFF
THROTTLE
POSITION
SWITCH
(CLOSED THROTTLE POSITION
SWITCH AND WIDE OPEN
THROTTLE POSITION SWITCH
ECM
DTC P0510 CLOSED THROTTLE POSITION SWITCH
(IF SO EQUIPPED)
SR20DE
Wiring Diagram
EC-273
Diagnostic Procedure
NCEC0293
1
CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect throttle position switch harness connector.
SEF197X
3. Turn ignition switch “ON”.
4. Check voltage between terminal 5 and engine ground with CONSULT-II or tester.
SEF250W
Voltage: Battery voltage
OK or NG
OK
©
GO TO 3.
NG
©
GO TO 2.
2
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F73, E90
I
Harness for open or short between throttle position switch and ECM relay
I
10A fuse
©
Repair harness or connectors.
3
CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 40 and terminal 4.
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.
Throttle body
Throttle position
sensor harness
connector
Closed throttle position switch
harness connector
DTC P0510 CLOSED THROTTLE POSITION SWITCH
(IF SO EQUIPPED)
SR20DE
Diagnostic Procedure
EC-274
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