2001 NISSAN PICK-UP ECO mode

SEF058Y
PROCEDURE FOR DTC P0102NEEC1552S02With CONSULT-II
1) Turn ignition switch ON.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and wait 5 seconds at most.
4) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3155.
With GST
Follow the procedure ªWith CONSULT-IIº.
NOTE:
If 1st trip DTC is confirmed after more than 5 seconds, there may
be malfunction C.
DTC P0102, P0103 MAF SENSORKA24DE (EURO OBD)
DTC Confirmation Procedure
EC-3153

FAIL-SAFE MODENEEC0067S01When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
Engine operating condition in fail-safe mode
The ECM functions on the assumption that the intake air temperature is 25ÉC (77ÉF).
DTC Confirmation ProcedureNEEC0068NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
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With CONSULT-II
1) Turn ignition switch ON.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Wait at least 5 seconds.
4) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3163.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0112, P0113 IAT SENSORKA24DE (EURO OBD)
On Board Diagnosis Logic
EC-3161

On Board Diagnosis LogicNEEC0074
DTC No.Trouble diag-
nosis nameDTC detecting condition Possible cause
P0117
0117Engine cool-
ant tempera-
ture sensor
circuit low
inputAn excessively low voltage from the sensor is sent
to ECM.+Harness or connectors
(The sensor circuit is open or shorted.)
+Engine coolant temperature sensor
P0118
0118Engine cool-
ant tempera-
ture sensor
circuit high
inputAn excessively high voltage from the sensor is sent
to ECM.
FAIL-SAFE MODENEEC0074S01When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
Detected items Engine operating condition in fail-safe mode
Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the time after turning ignition switch
to ON or START.
CONSULT-II displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided (CONSULT-II
display)
Just as ignition switch is turned to ON or Start 40ÉC (104ÉF)
More than approx. 4 minutes after ignition ON or
Start80ÉC (176ÉF)
Except as shown above40 - 80ÉC (104 - 176ÉF)
(Depends on the time)
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DTC Confirmation ProcedureNEEC0075NOTE:
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) Wait at least 5 seconds.
4) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3168.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0117, P0118 ECT SENSORKA24DE (EURO OBD)
On Board Diagnosis Logic
EC-3166

DTC Confirmation Procedure=NEEC0083NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
SEF058Y
PROCEDURE FOR MALFUNCTION ANEEC0083S02With CONSULT-II
1) Turn ignition switch ON.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and let it idle for at least 10 seconds.
If idle speed is over 1,100 rpm, maintain the following condi-
tions for at least 10 seconds to keep engine speed below 1,100
rpm.
Selector lever Suitable position except ªNº (Higher
gear position such as 3rd or 4th is bet-
ter to keep low engine rpm.)
Accelerator pedal Released
Vehicle speed As slow as possible
4) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3175.
With GST
Follow the procedure ªWith CONSULT-IIº.
SEF177Y
PROCEDURE FOR MALFUNCTION BNEEC0083S03CAUTION:
Always drive vehicle at a safe speed.
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.
4) Select ªMANU TRIGº in ªDATA MONITORº mode with CON-
SULT-II.
5) Select ªTHRTL POS SENº and ªABSOL TH´P/Sº in ªDATA
MONITORº mode with CONSULT-II.
6) Press RECORD on CONSULT-II screen at the same time
accelerator pedal is depressed.
7) Print out the recorded graph and check the following:
+The voltage rise is linear in response to accelerator pedal
depression.
+The voltage when accelerator pedal is fully depressed is
approximately 4V.
If NG, go to ªDiagnostic Procedureº, EC-3175.
If OK, go to following step.
DTC P0121 TP SENSORKA24DE (EURO OBD)
DTC Confirmation Procedure
EC-3172

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8) Select ªAUTO TRIGº in ªDATA MONITORº mode with CON-
SULT-II.
9) Maintain the following conditions for at least 10 consecutive
seconds.
ENG SPEED More than 2,000 rpm
MAS A/F SE-B1 More than 3V
COOLAN TEMP/S More than 70ÉC (158ÉF)
Selector lever Suitable position
Driving location Driving vehicle uphill (Increased engine load)
will help maintain the driving conditions
required for this test.
10) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3175.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0121 TP SENSORKA24DE (EURO OBD)
DTC Confirmation Procedure
EC-3173

7 DETECT MALFUNCTIONING PART
Check harness for open or short between ECM and throttle position sensor.
©Repair open circuit or short to power in harness or connectors.
8 CHECK INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 23 and terminal 2.
Refer to the Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK (With CONSULT-II)©GO TO 9.
OK (Without CONSULT-
II)©GO TO 10.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
9 CHECK THROTTLE POSITION SENSOR
With CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Stop engine and turn ignition switch ON.
4. Select ªDATA MONITORº mode with CONSULT-II.
5. Check voltage of ªTHRTL POS SENº under the following conditions.
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NOTE:
Voltage measurement must be made with throttle position sensor installed in vehicle.
MTBL0579
If NG, adjust closed throttle position switch. Refer to ªBasic Inspectionº, EC-3086.
OK or NG
OK (Type B in step 1)©GO TO 11.
OK (Type A or C in step
1)©GO TO 14.
NG©Replace throttle position sensor. To adjust it, perform ªBasic Inspectionº, EC-3086.
DTC P0121 TP SENSORKA24DE (EURO OBD)
Diagnostic Procedure
EC-3177

DTC Confirmation Procedure=NEEC1562NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
CAUTION:
Always drive vehicle at a safe speed.
TESTING CONDITION:
+Before performing the following procedure, confirm that
battery voltage is more than 10V at idle.
+This test may be conducted with the drive wheels lifted in
the shop or by driving the vehicle. If a road test is
expected to be easier, it is unnecessary to lift the vehicle.
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With CONSULT-II
1) Turn ignition switch ON and select ªDATA MONITORº mode
with CONSULT-II.
2) Start engine and maintain the following conditions for at least
5 consecutive seconds.
VHCL SPEED SE More than 4 km/h (2 MPH)
Selector lever Suitable position except ªNº position
3) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-3186.
With GST
Follow the procedure ªWith CONSULT-IIº.
DTC P0122, P0123 TP SENSORKA24DE (EURO OBD)
DTC Confirmation Procedure
EC-3184

6 CHECK THROTTLE POSITION SENSOR
With CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Stop engine and turn ignition switch ON.
4. Select ªDATA MONITORº mode with CONSULT-II.
5. Check voltage of ªTHRTL POS SENº under the following conditions.
SEF179Y
NOTE:
Voltage measurement must be made with throttle position sensor installed in vehicle.
MTBL0579
If NG, adjust closed throttle position switch. Refer to ªBasic Inspectionº, EC-3086.
OK or NG
OK (Type B in step 1)©GO TO 8.
OK (Type A or C in step
1)©GO TO 11.
NG©Replace throttle position sensor. To adjust it, perform ªBasic Inspectionº, EC-3086.
DTC P0122, P0123 TP SENSORKA24DE (EURO OBD)
Diagnostic Procedure
EC-3188