Nissan Frontier D22. Manual — part 327
DTC P0510 CTP SWITCH
EC-411
[KA24DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
3.
CHECK INPUT SIGNAL CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 28 and terminal 6.
Refer to Wiring Diagram.
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 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.
5.
ADJUST THROTTLE POSITION SWITCH IDLE POSITION
Check the following items. Refer to
>> GO TO 6.
Continuity should exist.
Items
Specifications
Ignition timing
20
° ± 2° BTDC
Base idle speed
750
± 50 rpm (in P or N position)
Closed throttle position switch
idle position adjustment
Feeler gauge thickness and switch condition
0.1 mm (0.004 in): ON
0.3 mm (0.012 in): OFF
Target idle speed
800
± 50 rpm (in P or N position)
EC-412
[KA24DE]
DTC P0510 CTP SWITCH
6.
CHECK CLOSED THROTTLE POSITION SWITCH
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine and turn ignition switch “ON”.
3.
Select “DATA MONITOR” mode with CONSULT-II.
4.
Check indication of “CLSD THL/P SW” under the following conditions.
NOTE:
Measurement must be made with closed throttle position switch installed in vehicle.
If NG, adjust closed throttle position switch. Refer to
5.
If it is impossible to adjust closed throttle position switch in “Basic Inspection”, replace closed throttle posi-
tion switch.
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch “OFF”.
3.
Disconnect throttle position switch harness connector.
4.
Check continuity between terminals 5 and 6 under the following conditions.
NOTE:
Continuity measurement must be made with closed throttle
position switch installed in vehicle.
If NG, adjust closed throttle position switch. Refer to
5.
If it is impossible to adjust closed throttle position switch in
“Basic Inspection”, replace closed throttle position switch.
OK or NG
OK
>> GO TO 7.
NG
>> Replace throttle position switch.
Throttle valve conditions
Continuity
Completely closed
Yes
Partially open or completely open
No
SEF721Z
SEF159S
DTC P0510 CTP SWITCH
EC-413
[KA24DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
7.
CHECK THROTTLE POSITION SENSOR
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine and turn ignition switch ON.
3.
Select “DATA MONITOR” mode with CONSULT-II.
4.
Check voltage of “THRTL POS SEN” under the following condi-
tions.
NOTE:
Voltage measurement must be made with throttle position
sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to
5.
If it is impossible to adjust closed throttle position switch in
“Basic Inspection”, replace throttle position sensor.
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Stop engine and turn ignition switch ON.
3.
Check voltage between ECM terminal 23 (Throttle position sen-
sor signal) and ground under the following conditions.
NOTE:
Voltage measurement must be made with throttle position
sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to
4.
If it is impossible to adjust closed throttle position switch in “Basic Inspection”, replace throttle position
sensor.
OK or NG
OK
>> GO TO 8.
NG
>> Replace throttle position sensor.
8.
CHECK INTERMITTENT INCIDENT
Perform
EC-120, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>> INSPECTION END.
Throttle valve conditions
Voltage [V]
Completely closed
0.2 - 0.8 (a)
Partially open
Between (a) and (b)
Completely open
3.5 - 4.5 (b)
SEF198Y
SEF767W
EC-414
[KA24DE]
DTC P0605 ECM
DTC P0605 ECM
PFP:23710
Component Description
UBS00D9K
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis Logic
UBS00D9L
DTC Confirmation Procedure
UBS00D9M
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.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Start engine.
4.
Run engine for at least 30 seconds at idle speed.
5.
If 1st trip DTC is detected, go to
EC-415, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II”.
SEC220B
DTC No.
Trouble Diagnosis Name
DTC Detecting Condition
Possible Cause
P0605
ECM
ECM calculation function is malfunctioning.
●
ECM
SEF058Y
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