system NISSAN TERRANO 2002 Service Repair Manual

CONSULT-II Reference Value in Data Monitor
Mode
Remarks: Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
FUEL TEMP SENIEngine: After warming up More than 40ÉC (104ÉF)
SPILL/VIEngine: After warming up Approx. 13ÉCA
INJ TIMG C/VIEngine: After warming up,
idle the engine.Approx. 50 - 70%
DECELER F/CUTIEngine: After warm-
ing upIdle OFF
BARO SENIIgnition switch: ONAltitude
Approx.0m(0ft): Approx. 100.62 kPa (1.0062 bar, 1.026 kg/cm
2, 14.59
psi)
Approx. 1,000 m (3,281 ft): Approx. 88.95 kPa (0.8895 bar, 0.907 kg/cm
2,
12.90 psi)
Approx. 1,500 m (4,992 ft): Approx. 83.16 kPa (0.8316 bar, 0.848 kg/cm
2,
12.06 psi)
Approx. 2,000 m (6,562 ft): Approx. 78.36 kPa (0.7836 bar, 0.799 kg/cm
2,
11.36 psi)
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
COLORITEM CONDITION DATA (DC Voltage)
33 GElectronic control fuel
injection pumpEngine is running.
Warm-up condition
Idle speedApproximately 2.5V
40 RElectronic control fuel
injection pumpEngine is running.
Warm-up condition
Idle speedApproximately 2.5V
52 YElectronic control fuel
injection pumpEngine is running.
Idle speedApproximately 0.1V
53 ORElectronic control fuel
injection pumpEngine is running.
Idle speedApproximately 0.35V
On Board Diagnosis Logic
Malfunction is detected when .... Check Items (Possible cause)
IFuel cut control system does not function properly.IHarness or connectors
(Electronic control fuel circuit is open or shorted.)
IElectronic control fuel
DTC 1004 FUEL CUT SYSTEM1ZD30DDTi
EC-233

DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to ªSTARTº for at
least 2 seconds.)
4) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-237.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to ªSTARTº for at
least 2 seconds.)
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-237.
SEF817Y
DTC 1004 FUEL CUT SYSTEM1ZD30DDTi
EC-234

Wiring Diagram
LHD MODELS
YEC181A
DTC 1004 FUEL CUT SYSTEM1ZD30DDTi
EC-235

RHD MODELS
YEC182A
DTC 1004 FUEL CUT SYSTEM1ZD30DDTi
Wiring Diagram (Cont'd)
EC-236

Diagnostic Procedure
1 CHECK ELECTRONIC CONTROL FUEL INJECTION PUMP POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect electronic control fuel injection pump harness connector.
MEC025E
3. Turn ignition switch ªONº.
4. Check voltage between electronic control fuel injection pump terminal 7 and ground.
MEC977DVoltage: Battery voltage
OK or NG
OKEGO TO 3.
NGEGO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M787, F66 (LHD models)
IHarness connectors F108, E225
IHarness connectors E220, E231 (LHD models)
IHarness connectors M842, F135 (RHD models)
IHarness for open or short between electronic control fuel injection pump and ECM
IHarness for open or short between electronic control fuel injection pump and ECM relay
ERepair open circuit or short to ground or short to power in harness or connectors.
3 CHECK ELECTRONIC CONTROL FUEL INJECTION PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Check harness continuity between electronic control fuel injection pump terminal 6 and ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 5.
NGEGO TO 4.
DTC 1004 FUEL CUT SYSTEM1ZD30DDTi
EC-237

4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E231, E220
IHarness for open or short between electronic control fuel injection pump and engine ground
ERepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK COMMUNICATION LINE FOR OPEN AND SHORT
1. Check continuity between the following terminals. Refer to Wiring Diagram.
MTBL0444
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OKEGO TO 7.
NGEGO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors E227, F106
IHarness connectors E231, E220
IHarness connectors F135, M842 (RHD models)
IHarness for open or short between electronic control fuel injection pump and ECM
ERepair open circuit or short to ground or short to power in harness or connectors.
7 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
OK or NG
OKEReplace electronic control fuel injection pump.
NGERepair open circuit or short to ground or short to power in harness or connectors.
DTC 1004 FUEL CUT SYSTEM1ZD30DDTi
Diagnostic Procedure (Cont'd)
EC-238

Description
SYSTEM DESCRIPTION
Sensor Input Signal to ECMECM
FunctionActuator
Crankshaft position
sensor (TDC)Engine speed
Glow
controlGlow lamp,
Glow relay
"
Glow plugs Engine coolant tem-
perature sensorEngine coolant tem-
perature
When engine coolant temperature is more than approximately 75ÉC
(167ÉF), the glow relay turns off, inactivating the quick-glow control
until coolant temperature drops below approximately 55ÉC (131ÉF).
When coolant temperature is lower than approximately 75ÉC
(167ÉF):
IIgnition switch ON
After ignition switch has turned to ON, the glow relay turns ON
for a certain period of time in relation to engine coolant
temperature, allowing current to flow through glow plug.
ICranking
The glow relay turns ON, allowing current to flow through glow
plug.
IStarting
After engine has started, current continues to flow through glow
plug (after-glow mode) for a certain period in relation to engine
coolant temperature.
When engine speed exceeds approximately 4,800 rpm, current
flow through glow plug is interrupted.
The glow indicator lamp turns ON for a certain period of time in
relation to engine coolant temperature at the time glow relay is
turned ON.
COMPONENT DESCRIPTION
Glow plug
IThe glow plug is provided with a ceramic heating element to
obtain a high-temperature resistance. It glows in response to a
signal sent from the ECM, allowing current to flow through the
glow plug via the glow relay.
IThis engine uses two types of glow plugs.
Type A has a blue or yellow paint mark.
Type B has no paint mark.
The location of the paint mark is shown in the figure.
WARNING:
Do not use two types of glow plugs at the same time.
SEF376Y
SEF280Z
GLOW CONTROL SYSTEMZD30DDTi
EC-239

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
COLORITEM CONDITION DATA (DC Voltage)
16 G/W Glow indicator lampIgnition switch ªONº
Glow indicator lamp is ªONºApproximately 1V
Ignition switch ªONº
Glow indicator lamp is ªOFFºBATTERY VOLTAGE
(11 - 14V)
111 LG Glow relay Refer to ªSYSTEM DESCRIPTIONº, EC-239.
GLOW CONTROL SYSTEMZD30DDTi
EC-240

Wiring Diagram
YEC195A
GLOW CONTROL SYSTEMZD30DDTi
EC-241

Diagnostic Procedure
1 INSPECTION START
Check fuel level, fuel supplying system, starter motor, etc.
OK or NG
OKEGO TO 2.
NGECorrect.
2 CHECK INSTALLATION
Check that all glow plug connecting plate nuts are installed properly.
MEC002E
OK or NG
OK (With CONSULT-II)EGO TO 3.
OK (Without CONSULT-II)EGO TO 4.
NGEInstall properly.
3 CHECK GLOW INDICATOR LAMP OPERATION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªCOOLAN TEMP/Sº in ªDATA MONITORº mode with CONSULT-II.
3. Confirm that ªCOOLAN TEMP/Sº indicates below 75ÉC (167ÉF). If it indicates above 75ÉC (167ÉF), cool down engine.
SEF013Y
4. Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
5. Make sure that glow indicator lamp is turned ªONº for 1.5 seconds or more after turning ignition switch ªONº, and then turned
ªOFFº.
OK or NG
OKEGO TO 5.
NGEGO TO 6.
GLOW CONTROL SYSTEMZD30DDTi
EC-242