engine coolant NISSAN TERRANO 2004 Service Workshop Manual

REMOVAL
1. Remove the following:
IEngine coolant draining
I Charge air cooler
I Air inlet pipe
I Throttle body
I Rocker cover
I Oil level gauge guide
I EGR cooler
I EGR guide tube
I EGR volume control solenoid valve
I Fuel hose
I Injection tube
I Radiator upper hose
I Radiator shroud
I Cooling fan
I Drive belt
I Vacuum pipe
I Vacuum pump
2. Move the power steering pump.
3. Remove the harness connector from the fuel injection pump.
I After pulling the connector stopper all the way back, remove the
connector.
I When the stopper is pulled all the way back, the interlocked-
connector will come off.
As for installation, when the connector is pushed all the way
forward until the stopper locks, the interlocked-connector is
inserted.
4. Remove the fuel injection pump rear bracket.
5. Remove the chain cover.
I Remove the installation bolts A, B, and C shown in the figure
(left).
CAUTION:
During chain cover removal, seal the opening to prevent for-
eign objects from getting into the engine.
6. Fix the internal mechanism of the idler gear (scissors gear structure).
a. Remove the plug on the front side of the gear case.
b. While turning the crankshaft pulley clockwise, check the tight- ening bolt hole of the idler gear internal mechanism through the
plug hole.
I Conduct the visual check using a mirror.
I When checking, note that there are 2 other holes (with no
thread) beside the tightening bolt hole on the idler gear.
JEF260Z
JEF261Z
JEF262Z
BASIC SERVICE PROCEDUREZD30DDTi
Electronic Control Fuel Injection Pump (Cont'd)
EC-28
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ENGINE CONTROL COMPONENT PARTS/CONTROL
SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
SELF-DIAG RESULTS DATA MONI-
TOR ACTIVE
TEST
ENGINE CONTROL COMPONENT PARTS
INPUT Engine coolant temperature sensor X X
Vehicle speed sensor X X
Accelerator position sensor X X X
Accelerator position switch X X
Accelerator switch (F/C) X X
Crankshaft position sensor (TDC) X X
Ignition switch (start signal) X
Park/Neutral position (PNP) switch X
Battery voltage X
Air conditioner switch X
Mass air flow sensor X X
Stop lamp switch X X
Heat up switch X
Charge air pressure sensor X
OUTPUT Glow relay
XX
EGR volume control valve X X X
Cooling fan relay X X X
Air conditioner relay X
Variable nozzle turbocharger control solenoid valve X
Swirl control valve control solenoid valve X X
X: Applicable
SELF-DIAGNOSTIC MODE
Regarding items detected in ªSELF-DIAG RESULTSº mode,
refer to ªTROUBLE DIAGNOSIS Ð INDEXº, EC-7.
DATA MONITOR MODE
Monitored item
[Unit] ECM
input
signals Main
signals Description Remarks
CKPS×RPM (TDC)
[rpm] qqI
The engine speed computed from the
crankshaft position sensor (TDC) signal
is displayed.
CMPS×RPM×PUMP
[rpm] qqI
The engine speed computed from the
pulse signal sent from electronic control
fuel injection pump is displayed.
COOLAN TEMP/S
[ÉC] or [ÉF] qqI
The engine coolant temperature (deter-
mined by the signal voltage of the engine
coolant temperature sensor) is displayed. I
When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the ECM
is displayed.
VHCL SPEED SE
[km/h] or [mph] qqI
The vehicle speed computed from the
vehicle speed sensor signal is displayed.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONZD30DDTi
CONSULT-II (Cont'd)
EC-40
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SYSTEM Ð Basic engine control sys-
temSYMPTOM
Reference page
Feature of symptom, Check pointROUGH 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 BLACK SMOKE
WHITE SMOKEWarranty symptom code
AG AH AJ AK AL AM AP HA
Electronic control fuel injection pump
mainframe 443 4 54 333 Ð *1
Injection nozzle 3 34 EC-24 *2
Glow system 1 EC-244
Engine body 3 3 3 3 3 3 EM section *3
EGR system 3 EC-227
Air cleaner and ducts 3 3 MA section *4
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
*1: Fuel injection system malfunction or fuel injection timing control system 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 DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
Symptom Matrix Chart (Cont'd)
EC-57
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SYSTEM Ð ENGINE CONTROL system
Malfunction
SYMPTOM
Reference page
Feature of symptom, Check pointHARD/NO START/RESTART
(EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE 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 DECELERATINGWarranty symptom code AAAB AC AD AE AF
ENGINE CONTROL
Electronic control fuel injection pump
circuit *a, *b 1 1
111111111
Ð
*c, *d
Mass air flow sensor circuit *a, *c
111
EC-88
*b
Engine coolant temperature sensor
circuit *a, *b 1 1 1 1 EC-95 *1
Vehicle speed sensor circuit *a, *b 1 EC-99
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
*a: Open
*b: Short
*c: Ground short
*d: Noise
*1: Compensation according to engine coolant temperature does not function.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
Symptom Matrix Chart (Cont'd)
EC-58
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SYSTEM Ð ENGINE CONTROL system
Malfunction
SYMPTOM
Reference page
Feature of symptom, Check pointROUGH 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 BLACK SMOKE
WHITE SMOKEWarranty symptom code
AG AH AJ AK AL AM AP HA
ENGINE CONTROL
Electronic control fuel injection pump
circuit*a, *b 1
111
Ð
*c, *d 1
Mass air flow sensor circuit *a, *c
1 EC-88
*b 1
Engine coolant temperature sensor
circuit *a, *b 1 1 1 1 EC-95 *1
Vehicle speed sensor circuit *a, *b 1 EC-99
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
*a: Open
*b: Short
*c: Ground short
*d: Noise
*1: Compensation according to engine coolant temperature does not function.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
Symptom Matrix Chart (Cont'd)
EC-59
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SYSTEM Ð ENGINE CONTROL system
Malfunction
SYMPTOM
Reference page
Feature of symptom, Check pointROUGH 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 BLACK SMOKE
WHITE SMOKEWarranty symptom code
AG AH AJ AK AL AM AP HA
ENGINE CONTROL
Accelerator switch (FC) circuit*a, *b
1 1 EC-104
*c
Fuel cut system line *a, *c 1 1
EC-237
*b 1 *2
Accelerator position sensor circuit *a, *b 1 1 EC-130
Crankshaft position sensor (TDC) cir-
cuit *a, *b 1 1
1 1 EC-152
*d
Charge air pressure sensor circuit *a, *b, *c 1 1 EC-220
Swirl control valve control solenoid
valve circuit *a, *b 1
EC-271
*c 1 1 1
Variable nozzle turbocharger control
solenoid valve circuit *a, *b 1 1
EC-289
*c 1 1
Intake air control valve control sole-
noid valve circuit *c EC-281
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
*a: Open
*b: Short
*c: Ground short
*d: Noise
*2: Engine runs on after turning ignition switch OFF.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
Symptom Matrix Chart (Cont'd)
EC-61
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SYSTEM Ð ENGINE CONTROL system
Malfunction
SYMPTOM
Reference page
Feature of symptom, Check pointROUGH 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 BLACK SMOKE
WHITE SMOKEWarranty symptom code
AG AH AJ AK AL AM AP HA
ENGINE CONTROL
Start signal circuit*a, *b EC-253 *3
PNP switch circuit *a, *b
1 1 EC-256
*c
Accelerator position switch (Idle) cir-
cuit *a, *c
EC-130
*b 1 1 *4
Accelerator position switch (Full) cir-
cuit *a, *b 1 1 EC-130
Ignition switch circuit *a
EC-79
*b *5
Power supply for ECM circuit *a
111
EC-79
*b
1 - 5: The numbers refer to the order of inspection.
(continued on next page)
*a: Open
*b: Short
*c: Ground short
*d: Noise
*3: Start control does not function.
*4: Accelerator position sensor NG signal is output.
*5: Engine does not stop.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
Symptom Matrix Chart (Cont'd)
EC-63
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SYSTEM Ð ENGINE CONTROL system
Malfunction
SYMPTOM
Reference page
Feature of symptom, Check pointROUGH 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 BLACK SMOKE
WHITE SMOKEWarranty symptom code
AG AH AJ AK AL AM AP HA
ENGINE CONTROL
EGR volume control valve circuit*a, *b
EC-227
*c 1 *8
Glow relay circuit *a 1
EC-244*9
*b *10
ECM relay (Self-shutoff) circuit *a 1
EC-79
*b 1 1 *11
ECM, Connector circuit *a, *b 222222222222 EC-121,
205, 218
Air conditioner relay circuit *a
EC-308*12
*b *13
Air conditioner switch circuit *a, *c
EC-308*13
*b *14
1 - 5: The numbers refer to the order of inspection.
*a: Open
*b: Short
*c: Ground short
*d: Noise
*8: Does not stop operating.
*9: Glow lamp does not turn on.
*10: Glow lamp does not turn off.
*11: Ground short makes engine unable to stop.
*12: Air conditioner does not operate.
*13: Air conditioner does not stop operating.
*14: Air conditioner does not work.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
Symptom Matrix Chart (Cont'd)
EC-65
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TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
17 G/Y Stop lamp switch Ignition switch ªONº
Brake pedal fully released
Approximately 0V
Ignition switch ªONº
Brake pedal depressed BATTERY VOLTAGE
(11 - 14V)
18 L Malfunction indicator Ignition switch ªONº
Approximately 1V
Engine is running.
Idle speed BATTERY VOLTAGE
(11 - 14V)
19 LG/W Engine coolant tempera-
ture sensor Engine is running.
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature
20 PU Start signal Ignition switch ªONº
Approximately 0V
Ignition switch ªSTARTº
BATTERY VOLTAGE
(11 - 14V)
21 G/R Air conditioner switch Engine is running.
Air conditioner switch is ªOFFº
BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Both air conditioner switch and blower fan
switch are ªONº
(Compressor is operating) Approximately 0.1V
22 BR/Y
(A/T)
G
(M/T) Park/Neutral position
switch Ignition switch ªONº
Gear position is ªNeutralº (M/T models)
Gear position is ªPº or ªNº (A/T models)
Approximately 0V
Ignition switch ªONº
Except the above gear position BATTERY VOLTAGE
(11 - 14V)
23 G Accelerator position sen-
sor Ignition switch ªONº
Accelerator pedal fully released
0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressed Approximately 4.5V
24 G/Y A/T signal No. 1 Engine is running.
Warm-up condition
Idle speed Voltage goes high up once in
a few seconds
SEF448Z
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-72
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Description
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine cool-
ant temperature input. The sensor uses a thermistor which is sen-
sitive to the change in temperature. The electrical resistance of the
thermistor decreases as temperature increases.

Engine coolant tempera-ture ÉC (ÉF) Voltage* (V) Resistance (kW
)
þ10 (14) 4.4 7.0 - 11.4 20 (68) 3.5 2.1 - 2.9
50 (122) 2.3 0.68 - 1.00
90 (194) 1.0 0.236 - 0.260
*: These data are reference values and measured between ECM terminal 19 (Engine coolant temperature sensor) 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.
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
I An excessively high or low voltage from the sensor is entered
to ECM. I
Harness or connectors (The sensor circuit is open or shorted.)
I Engine coolant temperature sensor
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Wait at least 5 seconds.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-97.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 5 seconds.
2) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
3) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with ECM.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-97.
SEF594K
SEF012P
SEF817Y
DTC 0103 COOLANT TEMP SENZD30DDTi
EC-95
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