2001 NISSAN PICK-UP engine

DTC Confirmation Procedure=NEEC1598NOTE:
+If ªDTC Confirmation Procedureº has been previously
conducted, always turn ignition switch OFF and wait at least 5
seconds before conducting the next test.
+Perform ªProcedure for malfunction Aº first. If DTC cannot
be confirmed, perform ªProcedure for malfunction Bº.
SEF058Y
PROCEDURE FOR MALFUNCTION ANEEC1598S01TESTING CONDITION:
Before performing the following procedure, confirm battery
voltage is more than 10.5V with ignition switch ON.
With CONSULT-II
1) Turn ignition switch ON.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and run it at idle at least 2 seconds.
4) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3299.
With GST
Follow the procedure ªWith CONSULT-IIº.
SEF174Y
PROCEDURE FOR MALFUNCTION BNEEC1598S02TESTING CONDITION:
+Before performing the following procedure, make sure
battery voltage is more than 11V at idle.
+Always perform at a temperature above ±10ÉC (14ÉF).
With CONSULT-II
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch OFF and wait at least 5 seconds.
3) Turn ignition switch ON again and select ªDATA MONITORº
mode with CONSULT-II.
4) Start engine and run it for at least 6 minute at idle speed.
5) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3299.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0505 ISC SYSTEMKA24DE (EURO OBD)
DTC Confirmation Procedure
EC-3297

Diagnostic ProcedureNEEC1600
1 CHECK POWER SUPPLY
1. Stop engine.
2. Disconnect IACV-AAC valve harness connector.
SEF342V
3. Turn ignition switch ON.
4. Check voltage between terminal 2 and ground with CONSULT-II or tester.
SEC271D
Voltage: Battery voltage
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
+10A fuse
+Harness for open or short between IACV-AAC valve and 10A fuse
©Repair harness or connectors.
3 CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 101 and terminal 1. 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 4.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0505 ISC SYSTEMKA24DE (EURO OBD)
Diagnostic Procedure
EC-3299

SEF197Y
SEF198Y
DTC Confirmation Procedure=NEEC0290CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº 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 ªCLSD THL/P SWº in ªDATA MONITORº mode with
CONSULT-II and check the value under the following condi-
tions.
Condition Signal indication
Throttle valve: Idle position ON
Throttle valve: Slightly open OFF
If the result is NG, go to ªDiagnostic Procedureº, EC-3304.
If OK, go to following step.
3) Select ªDATA MONITORº mode with CONSULT-II.
4) Drive the vehicle for at least 5 consecutive seconds under the
following condition.
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.
5) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3304.
SEF422Q
Overall Function CheckNEEC0291Use 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 28 (Closed throttle
position switch signal) and ground under the following condi-
tions.
Condition Voltage
At idle Battery voltage
At 2,000 rpm Approximately0-1V
3) If NG, go to ªDiagnostic Procedureº, EC-3304.
DTC P0510 CTP SWITCHKA24DE (EURO OBD)
DTC Confirmation Procedure
EC-3302

Diagnostic ProcedureNEEC0293
1 CHECK POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect throttle position switch harness connector.
SEF158S
3. Turn ignition switch ON.
4. Check voltage between terminal 5 and engine ground with CONSULT-II or tester.
SEF715U
Voltage: Battery voltage
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
+10A fuse
+Harness for open or short between throttle position switch and 10A fuse
©Repair harness or connectors.
DTC P0510 CTP SWITCHKA24DE (EURO OBD)
Diagnostic Procedure
EC-3304

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 ªDATA MONITORº mode with CONSULT-II.
4. Check indication of ªCLSD THL/P SWº under the following conditions.
SEF721Z
NOTE:
Measurement must be made with closed throttle position switch installed in vehicle.
If NG, adjust closed throttle position switch. Refer to ªBasic Inspectionº, EC-3086.
5. If it is impossible to adjust closed throttle position switch in ªBasic Inspectionº, replace 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 throttle position switch harness connector.
4. Check continuity between terminals 5 and 6 under the following conditions.
SEF159S
MTBL0299
NOTE:
Continuity measurement must be made with closed throttle position switch installed in vehicle.
If NG, adjust closed throttle position switch. Refer to ªBasic Inspectionº, EC-3086.
5. If it is impossible to adjust closed throttle position switch in ªBasic Inspectionº, replace closed throttle position switch.
OK or NG
OK©GO TO 7.
NG©Replace throttle position switch.
DTC P0510 CTP SWITCHKA24DE (EURO OBD)
Diagnostic Procedure
EC-3306

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 ªDATA MONITORº mode with CONSULT-II.
4. Check voltage of ªTHRTL POS SENº under the following conditions.
SEF198Y
NOTE:
Voltage measurement must be made with throttle position sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to ªBasic Inspectionº, EC-3086.
5. If it is impossible to adjust closed throttle position switch in ªBasic Inspectionº, 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 sensor signal) and ground under the following conditions.
SEF767W
MTBL0329
NOTE:
Voltage measurement must be made with throttle position sensor installed in vehicle.
If NG, adjust closed throttle position switch. Refer to ªBasic Inspectionº, EC-3086.
4. If it is impossible to adjust closed throttle position switch in ªBasic Inspectionº, replace throttle position sensor.
OK or NG
OK©GO TO 8.
NG©Replace throttle position sensor.
8 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-3123.
©INSPECTION END
DTC P0510 CTP SWITCHKA24DE (EURO OBD)
Diagnostic Procedure
EC-3307

SEC220B
Component DescriptionNEEC0295The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the
engine.
On Board Diagnosis LogicNEEC0296
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0605
0605+ECM calculation function is malfunctioning.+ECM
SEF058Y
DTC Confirmation ProcedureNEEC0297NOTE:
If ªDTC Confirmation Procedureº 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 ªDATA MONITORº 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 ªDiagnostic Procedureº,
EC-3309.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0605 ECMKA24DE (EURO OBD)
Component Description
EC-3308

SEF463R
SEF288D
Component DescriptionNEEC0103The heated oxygen sensor 1 is placed into the exhaust manifold.
It detects the amount of oxygen in the exhaust gas compared to the
outside air. The heated oxygen sensor 1 has a closed-end tube
made of ceramic zirconia. The zirconia generates voltage from
approximately 1V in richer conditions to 0V in leaner conditions.
The heated oxygen sensor 1 signal is sent to the ECM. The ECM
adjusts the injection pulse duration to achieve the ideal air-fuel
ratio. The ideal air-fuel ratio occurs near the radical change from
1V to 0V.
CONSULT-II Reference Value in Data Monitor
Mode
NEEC0104Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
HO2S1 (B1)
+Engine: After warming upMaintaining engine speed at 2,000
rpm0 - 0.3V¨Approx. 0.6 - 1.0V
HO2S1 MNTR
(B1)LEAN¨RICH
Changes more than 5 times during
10 seconds.
ECM Terminals and Reference ValueNEEC0105Specification 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
COLORITEM CONDITION DATA (DC Voltage)
50 WHeated oxygen sensor
1[Engine is running]
+After warming up to normal operating tempera-
ture and engine speed is 2,000 rpm0 - Approximately 1.0V
SEF008W
DTC P1143 HO2S1KA24DE (EURO OBD)
Component Description
EC-3310