engine NISSAN TERRANO 2004 Service Repair Manual

22 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F120, M812 (LHD models)
I Fuse block (J/B) connector F48 (LHD models)
I Fuse block (J/B) connector M756 (RHD models)
I 10A fuse
I Resistor
I Harness for open or short between ECM and fuse
ERepair open circuit or short to ground or short to power in harness or connectors.
23 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº EC-78.
OK or NG
OK EReplace engine oil pressure switch-2.
NG ERepair harness or connectors.
24 OVERALL FUNCTION CHECK-V
1. Turn ignition switch ªOFFº.
2. Disconnect engine oil pressure switch-2 harness connector.
3. Start engine and warm it up to normal operating temperature.
4. Keep engine speed between 3,600 to 4,200 rpm at least 30 seconds.
5. Check oil pressure warning lamp illumination.
Oil pressure warning lamp should not illuminate.
OK or NG
OK EGO TO 25.
NG EReplace oil pressure switch-2.
25 DETECT MALFUNCTIONING PART
Check the following.
IHarness for short to ground between ECM and engine oil pressure switch-2
I Harness for short to ground between ECM and fuse block
ERepair short to ground in harness or connectors.
ENGINE OIL PRESSURE SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-307
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General Specifications
Unit: rpm
EngineZD30DDTi
Idle speed 750 25
Maximum engine speed 4,300
Injection Pump Numbers
EnginePart numberPump assembly number
ZD30DDTi 16700 VG100 109342-4023
Injection Nozzle
Unit: kPa (bar, kg/cm2, psi)
Initial injection pressureUsed 19,026 (190.3, 194, 2,759)
New 19,516 - 20,497 (195.2 - 205.0, 199 - 209, 2,830 - 2,972)
Limit 16,182 (161.8, 165, 2,346)
Engine Coolant Temperature Sensor
Temperature ÉC (ÉF)
Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Crankshaft Position Sensor (TDC)
Resistance [at 20ÉC (68ÉF)] W 1,287 - 1,573
Glow Plug
Resistance [at 20ÉC (68ÉF)]W Approximately 0.5
Accelerator Position Sensor
Throttle valve conditionsResistance between terminals 2 and 3 kW[at 25ÉC (77ÉF)]
Completely closed Approximately 0.5
Partially open 0.5-4
Completely open Approximately 4
EGR Volume Control Valve
Resistance [at 25ÉC (77ÉF)]W 13-17
SERVICE DATA AND SPECIFICATIONS (SDS)ZD30DDTi
EC-312
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IWhen connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.
I Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to IC's.
I Keep engine control system harness at least 10cm (4 in)
away from adjacent harness, to prevent engine control
system malfunctions due to receiving external noise,
degraded operation of IC's, etc.
I Keep engine control system parts and harness dry.
I Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
I After performing each TROUBLE DIAGNOSIS, perform
ªDTC Confirmation Procedureº or ªOverall Function
Checkº.
The DTC should not be displayed in the ªDTC Confirmation
Procedureº if the repair is completed. The ªOverall Func-
tion Checkº should be a good result if the repair is com-
pleted.
I When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
I Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the
ECM's transistor. Use a ground other than ECM terminals,
such as the ground.
I Do not disconnect supply pump harness connector with
engine running.
I Do not disassemble fuel pump.
If NG, take proper action.
I Do not disassemble fuel injector.
If NG, replace fuel injector.
I Even a slight leak in the air intake system can cause seri-
ous problems.
I Do not shock or jar the crankshaft position sensor and the
camshaft position sensor.
SEF291H
MEF040D
SEF348N
PRECAUTIONS AND PREPARATIONTD27Ti
Precautions (Cont'd)
EC-316
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IDo not depress accelerator pedal when staring.
I Immediately after staring, do not rev up engine unneces-
sarily.
I Do not rev up engine just prior to shutdown.
I When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
- Keep the antenna as far as possible from the electronic control units.
- Keep the antenna feeder line more than 20 cm (8 in) away from the harness of electronic controls.
Do not let them run parallel for a long distance.
- Adjust the antenna and feeder line so that the standing- wave radio can be kept smaller.
- Be sure to ground the radio to vehicle body.
SEF709Y
SEF708Y
PRECAUTIONS AND PREPARATIONTD27Ti
Precautions (Cont'd)
EC-317
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Engine Fuel & Emission Control System
MEC031E
PRECAUTIONS AND PREPARATIONTD27Ti
EC-320
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PRECAUTIONS
IBefore connecting or disconnecting the ECM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned off.
I When connecting ECM harness connector, open the ports
on harness connector then meet the ports with the pins on
ECM as shown. Push slider on harness connector until it
stops.
I Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-369.
I If MI illuminates or flashes irregularly while the engine is
running, water may have accumulated in fuel filter. Drain
water from fuel filter. If this does not correct the problem,
perform specified trouble diagnostic procedures.
I After performing each TROUBLE DIAGNOSIS, perform
ªOVERALL FUNCTION CHECKº or ªDTC (Diagnostic
Trouble Code) CONFIRMATION PROCEDUREº.
The DTC should not be displayed in the ªDTC CONFIRMA-
TION PROCEDUREº if the repair is successful. The ªOVER-
ALL FUNCTION CHECKº should indicate a good result if
the repair is completed successfully.
SEF289H
NEF754
NEF755
MEF040D
SAT652J
PRECAUTIONS AND PREPARATIONTD27Ti
Engine Fuel & Emission Control System
(Cont'd)
EC-321
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IWhen measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
SEF348N
PRECAUTIONS AND PREPARATIONTD27Ti
Engine Fuel & Emission Control System
(Cont'd)
EC-322
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Engine Control Component Parts Location
YEC234A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMTD27Ti
EC-323
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YEC694A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMTD27Ti
Engine Control Component Parts Location
(Cont'd)EC-324
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Circuit Diagram
YEC671A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMTD27Ti
EC-325
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