2004 NISSAN TERRANO oil pressure

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
http://vnx.su/

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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Symptom Matrix Chart
SYSTEM
Ð Basic engine
control systemSYMPTOM
Reference page
Feature of symptom, Check pointHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator lamp illuminates.
Can be detected by CONSULT-II?
Fuel cut NO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATING
BLACK SMOKE
WHITE SMOKENew CT/CS
AAAB AC AD AE AF AG AH AJ AK AL AM AP HA
Injec-
tion
timing Advanced
qq
IIqIqqIqEC-361
Retarded qq
IIqIqqIqEC-361
Electric injection
pump mainframe
IIIIqqqqqIqqqIIqqIq qqq Ð*1
Injection nozzle qqqqqqq
Iqq qIIIEC-336 *2
Glow system qq
III IEC-412
Engine body qq
IIqqqIqq qIIqqqIEM-
section *3
EGR system
II IEC-454
Air cleaner and
ducts
II IqMA-
section *4
I; High Possibility Item
q ; Low Possibility Item
*1: Insufficient or excess amount. Governor malfunction may be the cause.
*2: Depends on open-valve pressure and spray pattern.
*3: Caused mainly by insufficient compression pressure.
*4: Symptom varies depending on off-position of air duct, etc.
TROUBLE DIAGNOSESTD27Ti
EC-363
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ECM INSPECTION TABLE
Remarks: 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 result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-NALNO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and
Pulse Signal)
101
102
103 G/R Fuel cut solenoid valve [Ignition switch ªOFFº]
Approximately 0V
[Ignition switch ªONº] BATTERY VOLTAGE
(11 - 14V)
104
105
106 B ECM ground
[Engine is running]
I
Idle speed Approximately 0V
107
108
109 Y Power supply for ECM
[Ignition switch ªONº] BATTERY VOLTAGE
(11 - 14V)
202 Y/R Injection timing control
valve [Engine is running]
I
Warm-up condition
I Idle speed Approximately 10 - 12V
NEF480
[Engine is running]
I
Warm-up condition
I Engine speed is 2,000 rpm Approximately9-14V
NEF481
204 G/PU Air conditioner relay
[Engine is running]
I
Air conditioner switch is ªOFFº BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
I Both air conditioner switch and blower fan switch
are ªONº
(Compressor is operating) Approximately 0.1V
205 Y/PU Oil pressure switch [Ignition switch ªONº]
Approximately 0V
[Engine is running]
I Idle speed Voltages
208 R/Y EGRC-solenoid valve A [Engine is running]
I
Warm-up condition
I Idle speed Approximately 0.7V
[Engine is running]
I Warm-up condition
I Engine speed is 2,800 rpm BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSESTD27Ti
ECM Terminals and Reference Value (Cont'd)
EC-370
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