NISSAN TERRANO 2004 Service Repair Manual

3 CHECK ACCELERATOR POSITION SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect accelerator work unit harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between accelerator work unit terminal 2 and ground with CONSULT-II or tester.
YEC706A
OK or NG
OK EGO TO 4.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
4 CHECK ACCELERATOR POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screw.
MEC994D
3. Check harness continuity between accelerator work unit terminal 3 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK EGO TO 5.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
DTC 0403 ACCEL POS SENSORZD30DDTi
Diagnostic Procedure (Cont'd)
EC-146
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5 CHECK ACCELERATOR POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 23 and accelerator work unit terminal 4. Refer to Wiring Diagram.Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK (with CONSULT-II) EGO TO 6.
OK (without CONSULT-II) EGO TO 7.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
6 CHECK ACCELERATOR POSITION SENSOR
With CONSULT-II
1. Reconnect all disconnected harness connectors.
2. Turn ignition switch ªONº.
3. Select ªDATA MONITORº mode with CONSULT-II.
4. Check the indication of ªACCEL POS SENº under the following conditions.
SEF818Y
OK or NG
OK EGO TO 8.
NG EReplace accelerator pedal assembly.
7 CHECK ACCELERATOR POSITION SENSOR
Without CONSULT-II
1. Reconnect all disconnected harness connectors.
2. Turn ignition switch ªONº.
3. Check voltage between ECM terminal 23 and ground under the following conditions.
SEF407Y
OK or NG
OK EGO TO 9.
NG EReplace accelerator pedal assembly.
DTC 0403 ACCEL POS SENSORZD30DDTi
Diagnostic Procedure (Cont'd)
EC-147
http://vnx.su/

8 RESET ACCELERATOR POSITION SENSOR IDLE POSITION MEMORY
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªOFF ACCEL PO SIGº in ªACTIVE TESTº mode with CONSULT-II.
3. Touch ªCLEARº.
EGO TO 10.
9 RESET ACCELERATOR POSITION SENSOR IDLE POSITION MEMORY
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for 10 minutes.
EGO TO 10.
10 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
11 CHECK ACCELERATOR POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect accelerator work unit harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between accelerator work unit terminal 6 and ground with CONSULT-II or tester.
YEC707A
OK or NG
OK EGO TO 13.
NG EGO TO 12.
12 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M787, F6 (LHD models)
I Harness for open or short between accelerator work unit and ECM relay
I Harness for open or short between accelerator work unit and ECM
ERepair harness or connectors.
DTC 0403 ACCEL POS SENSORZD30DDTi
Diagnostic Procedure (Cont'd)
EC-148
http://vnx.su/

13 CHECK ACCELERATOR POSITION SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between accelerator work unit terminal 5 and ECM terminal 31. Refer to Wiring Diagram.Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK EGO TO 14.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
14 CHECK ACCELERATOR POSITION SWITCH
Check continuity between accelerator work unit terminals 5 and 6 under the following conditions.
YEC708A
OK or NG
OK (With CONSULT-II) EGO TO 15.
OK (Without CONSULT-II) EGO TO 16.
NG EReplace accelerator pedal assembly.
15 RESET ACCELERATOR POSITION SENSOR IDLE POSITION MEMORY
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªOFF ACCEL PO SIGº in ªACTIVE TESTº mode with CONSULT-II.
3. Touch ªCLEARº.
EGO TO 18.
16 RESET ACCELERATOR POSITION SENSOR IDLE POSITION MEMORY
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for 10 minutes.
EGO TO 18.
17 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
DTC 0403 ACCEL POS SENSORZD30DDTi
Diagnostic Procedure (Cont'd)
EC-149
http://vnx.su/

On Board Diagnosis Logic
Malfunction is detected when ...Check Items (Possible Cause)
I An excessively high voltage from the mass air flow sensor is
sent to ECM when engine is running. I
Air duct
I Charge air cooler
I Variable nozzle turbocharger control system
I Variable nozzle turbocharger
I Mass air flow sensor
I Harness or connectors
(The mass air flow sensor circuit is shorted.)
DTC Confirmation Procedure
NOTE:
If DTC 0406 ªINT AIR VOLº displayed with DTC 0102 ªMASS
AIR FLOW SENº, perform trouble diagnosis for DTC 0102
ªMASS AIR FLOW SENº first. (See EC-88.)
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and warm it up to normal operating temperature.
4) Drive vehicle.
5) Maintain the engine speed more than 4,000 rpm for at least 10
seconds.
6) If DTC is detected, go to ªDiagnostic Procedureº, EC-151.
WITHOUT CONSULT-II
1) Start engine and warm it up to normal operating temperature.
2) Drive vehicle.
3) Maintain the engine speed more than 4,000 rpm for at least 10 seconds.
4) Stop vehicle.
5) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
6) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with ECM.
7) If DTC is detected, go to ªDiagnostic Procedureº, EC-151.SEF817Y
DTC 0406 INT AIR VOLZD30DDTi
EC-150
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Diagnostic Procedure
1 CHECK INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.OK or NG
OK EGO TO 2.
NG ERepair or replace.
2 CHECK VARIABLE NOZZLE TURBOCHARGER OVERALL FUNCTION
1. Start engine and let it idle.
2. Make sure that variable nozzle turbocharger control actuator rod moves when revving engine up to 3,000 rpm and returning to
idle.
MEC015E
OK or NG
OK EGO TO 3.
NG EGo to ªDiagnostic Procedureº in ªVARIABLE NOZZLE TURBOCHARGER CONTROL SOLE-
NOID VALVEº, EC-292.
3 CHECK MASS AIR FLOW SENSOR
1. Start engine and warm it up to normal operating temperature.
2. Check voltage between ECM terminal 35 (Mass air flow sensor signal) and ground.
SEF400Y
3. If the voltage is out of specification, disconnect MAFS harness connector and connect it again.
Then repeat above check.
OK or NG
OK EGO TO 4.
NG EReplace mass air flow sensor.
4 CHECK INTERMIT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
DTC 0406 INT AIR VOLZD30DDTi
EC-151
http://vnx.su/

Description
The crankshaft position sensor (TDC) monitors engine speed by
means of signals from the sensing plate (with three protrusions)
installed to the crankshaft pulley. The data signal output is detected
at ATDC 70É and sent to the ECM. The sensor signal is used for
fuel injection control and fuel injection timing control.
CONSULT-II Reference Value in Data Monitor
Mode
Specification data are reference values.
MONITOR ITEMCONDITION SPECIFICATION
CKPS×RPM (TDC) I
Tachometer: Connect
I Run engine and compare the CONSULT-II value with tachometer indi-
cation. Almost the same speed as the
tachometer indication.
ECM Terminals and Reference Value
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 damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and
Pulse Signal)
44 L/G Crankshaft position sensor
(TDC) Engine is running.
Warm-up condition
Idle speed
Approximately 0V
SEF333Y
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 0V
SEF334Y
47 L/R
Crankshaft position sensor
(TDC) ground Engine is running.Warm-up condition
Idle speed
Approximately 0V
SEF231Z
DTC 0407 CRANK POS SEN (TDC)ZD30DDTi
EC-152
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On Board Diagnosis Logic
Malfunction is detected when ...Check Items (Possible Cause)
I An improper signal from the sensor is sent to ECM during
engine running and cranking. I
Harness or connectors
(The sensor circuit is open.)
I Crankshaft position sensor (TDC)
DTC Confirmation Procedure
Before performing the following procedure, confirm that bat-
tery voltage is more than 10V.
WITH CONSULT-II
1) Turn ignition switch ªONº and select ªDATA MONITORº mode
with CONSULT-II.
2) Crank engine for at least 1 second.
3) Start engine and run it for at least 2 seconds at idle speed.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-156.
WITHOUT CONSULT-II
1) Crank engine for at least 1 second.
2) Start engine and run it for at least 2 seconds at idle speed.
3) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
4) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with ECM.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-156.
SEF817Y
DTC 0407 CRANK POS SEN (TDC)ZD30DDTi
EC-153
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Wiring Diagram
LHD MODELS
YEC185A
DTC 0407 CRANK POS SEN (TDC)ZD30DDTi
EC-154
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RHD MODELS
YEC664A
DTC 0407 CRANK POS SEN (TDC)ZD30DDTi
Wiring Diagram (Cont'd)EC-155
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