check engine NISSAN TERRANO 2004 Service Repair Manual

Diagnostic Procedure
1 OVERALL FUNCTION CHECK-I
1. Turn ignition switch ªONº.
2. Check oil pressure warning lamp in combination meter illumination.Oil pressure warning lamp should illuminate after turning ignition switch ªONº immediately.
OK or NG
OK EGO TO 2.
NG EGO TO 8.
2 CHECK ENGINE OIL LEVEL
1. Turn ignition switch ªOFFº.
2. Check engine oil level.
SMA885BEngine oil level: Between L and H
OK or NG
OK EGO TO 4.
NG EGO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
ICheck area around drain plug and oil filter for oil leakage.
I Check area around cylinder block oil gallery.
EIf NG, repair or replace. Refer to EM and LC sections.
4 OVERALL FUNCTION CHECK-II
1. Turn ignition switch ªONº and wait at least 3 seconds.
2. Start engine and let it idle.
3. Check oil pressure warning lamp illumination.
Oil pressure warning lamp should go off.
OK or NG
OK EGO TO 5.
NG EGO TO 14.
5 OVERALL FUNCTION CHECK-III
1. Warm up engine to the normal operating temperature.
2. Keep engine speed between 3,600 to 4,200 rpm at least 30 seconds.
3. Check oil pressure warning lamp illumination.
Oil pressure warning lamp should not illuminate.
OK or NG
OK EGO TO 6.
NG EGO TO 24.
ENGINE OIL PRESSURE SWITCHZD30DDTi
EC-301
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6 CHECK ECM OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Disconnect combination meter harness connector.
4. Check harness continuity between ECM terminal 6 and combination meter terminal 16.Refer to Wiring Diagram.
Continuity should exist.
5. Also check harness for short to ground or short to power.
OK or NG
OK EINSPECTION END
NG EGO TO 7.
7 DETECT MALFUNCTIONING PART
Check the following.
IHarness for open or short between ECM and combination meter
ERepair open circuit or short to ground or short to power in harness or connectors.
8 CHECK COMBINATION METER POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect combination meter harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between combination meter terminal 28 and ground.
YEC701AVoltage: Battery voltage
OK or NG
OK EGO TO 10.
NG EGO TO 9.
ENGINE OIL PRESSURE SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-302
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9 DETECT MALFUNCTIONING PART
Check the following.
I10A fuse
I Fuse block (J/B) connector F48 (LHD models)
I Fuse block (J/B) connector M756 (RHD models)
I Harness for open or short between combination meter and fuse block
ERepair open circuit or short to ground or short to power in harness or connectors.
10 CHECK ENGINE OIL PRESSURE SWITCH-1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect engine oil pressure switch-1 harness connector.
3. Check harness continuity between combination meter terminal 16 and engine oil pressure switch-1 terminal 1.
Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to power.
OK or NG
OK EGO TO 12.
NG EGO TO 11.
11 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F108, E225
I Harness connectors M842, F135 (RHD models)
I Harness for open or short between combination meter and engine oil pressure switch-1
ERepair open circuit or short to power in harness or connectors.
ENGINE OIL PRESSURE SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-303
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12 CHECK COMBINATION METER
Check combination meter continuity between the following terminals. Refer to Wiring Diagram.
MTBL1798
YEC702A
OK or NG
OK EGO TO 13.
NG ERepair or replace combination meter. Refer to EL section.
13 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
OK EReplace engine oil pressure switch-1.
NG ERepair harness or connectors.
14 OVERALL FUNCTION CHECK-IV
1. Turn ignition switch ªOFFº.
2. Disconnect engine oil pressure switch-1 harness connector.
3. Turn ignition switch ªONº and wait at least 3 seconds.
4. Start engine and let it idle.
5. Check oil pressure warning lamp illumination.
Oil pressure warning lamp should go off.
OK or NG
OK EReplace engine oil pressure switch-1.
NG EGO TO 15.
ENGINE OIL PRESSURE SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-304
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15 CHECK ENGINE OIL PRESSURE SWITCH-1 INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº and then ªONº.
2. Check voltage between engine oil pressure switch-1 terminal 1 and ground with CONSULT-II or tester.
SEC976DVoltage: Battery voltageOK or NG
OK EGO TO 17.
NG EGO TO 16.
16 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F108, E225
I Harness connectors M842, F135 (RHD models)
I Harness for short between combination meter and engine oil pressure switch-1
ERepair harness or connectors.
17 CHECK ECM OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between ECM terminal 6 and ground with CONSULT-II or tester.
SEC977D
Voltage: Battery voltage
OK or NG
OK EGO TO 19.
NG EGO TO 18.
18 DETECT MALFUNCTIONING PART
Check the following.
IHarness for short between combination meter and ECM
ERepair harness or connectors.
ENGINE OIL PRESSURE SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-305
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19 CHECK ENGINE OIL PRESSURE SWITCH-2 INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect engine oil pressure switch-2 harness connector.
3. Turn ignition switch ªONº.
4. Check voltage between engine oil pressure switch-2 terminal 1 and ground with CONSULT-II or tester.
SEC976D
Voltage: Battery voltageOK or NG
OK EGO TO 21.
NG EGO TO 20.
20 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M807, E201
I Harness connectors F120, M812 (LHD models)
I Resistor
I 10A fuse
I Fuse block (J/B) connector F48 (LHD models)
I Fuse block (J/B) connector M756 (RHD models)
I Harness for open between engine oil pressure switch-2 and fuse
ERepair harness or connectors.
21 CHECK ECM INPUT SIGNAL CIRCUIT-I
Check voltage between ECM terminal 27 and ground with CONSULT-II or tester.
SEC388DVoltage: Battery voltage
OK or NG
OK EGO TO 23.
NG EGO TO 22.
ENGINE OIL PRESSURE SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-306
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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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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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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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How to Erase DTC (Without CONSULT-II)
1. If the ignition switch stays ªONº after repair work, be sure to turn ignition switch ªOFFº once. Wait at least5 seconds and then turn it ªONº (engine stopped) again.
2. Change the diagnostic test mode from Mode II to Mode I by using the data link connector. (See EC-346.)
The emission related diagnostic information in the ECM can be erased by changing the diagnostic test mode.
I If the battery is disconnected, the emission-related diagnostic information will be lost after approx.
24 hours.
I Erasing the emission-related diagnostic information using CONSULT-II is easier and quicker than
switching the diagnostic test mode using the data link connector.
Malfunction Indicator (MI)
1. The malfunction indicator will light up when the ignition switch
is turned ON without the engine running. This is a bulb check.
I If the malfunction indicator does not light up, refer to EL sec-
tion (ªWARNING LAMPS/WIRING DIAGRAMº) or see MI &
DATA LINK CONNECTORS.
2. When the engine is started, the malfunction indicator should go off.
If the lamp remains on, the on board diagnostic system has
detected an engine system malfunction.
If MI illuminates or flashes irregularly after starting engine,
water may have accumulated in fuel filter. Drain water from
fuel filter.
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following three functions.
Diagnostic
Test Mode KEY and ENG.
Status Function Explanation of Function
Mode I Ignition switch in
ON position
Engine stoppedBULB CHECK
This function checks the MI bulb for damage (blown, open
circuit, etc.).
If the MI does not come on, check MI circuit. (See EC-475.)
Engine running
MALFUNCTION
WARNING This is a usual driving condition. When ECM detects a
malfunction, the MI will light up to inform the driver that a mal-
function has been detected.
Mode II Ignition switch in
ON position
Engine stopped
SELF-DIAGNOSTIC
RESULTS
This function allows DTCs to be read.
SAT652J
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONTD27Ti
Diagnostic Trouble Code (DTC) (Cont'd)
EC-345
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