engine NISSAN TERRANO 2004 Service Repair Manual

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
http://vnx.su/

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
Start signal circuit *a, *b1 1 EC-253 *3
PNP switch circuit *a, *b
1
EC-256
*c
Accelerator position switch (Idle) cir-
cuit *a, *c
1 1 1
EC-130
*b 1 1 1*4
Accelerator position switch (Full) cir-
cuit *a, *b
1 1 1EC-130
Ignition switch circuit *a 1 111
EC-79
*b *5
Power supply for ECM circuit *a
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-62
http://vnx.su/

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
http://vnx.su/

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
EGR volume control valve circuit *a, *b
EC-227
*c *8
Glow relay circuit *a 1111
EC-244*9
*b *10
ECM relay (Self-shutoff) circuit *a 111
EC-79
*b *11
ECM, Connector circuit *a, *b 2222222222222 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.
(continued on next page)
*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-64
http://vnx.su/

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
http://vnx.su/

CONSULT-II Reference Value in Data Monitor
Mode
Remarks:
ISpecification data are reference values.
I Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
MONITOR ITEM CONDITION SPECIFICATION
CKPS×RPM (TDC) ITachometer: Connect
I Run engine and compare the CONSULT-II value with tachometer indication. Almost the same speed as the
tachometer indication.
CMPS×RPM-PUMP
COOLAN TEMP/S IEngine: After warming up More than 70ÉC (158ÉF)
VHCL SPEED SE ITurn drive wheels and compare the CONSULT-II value with speedometer indication. Almost the same speed as the
speedometer indication
FUEL TEMP SEN IEngine: After warming up More than 40ÉC (104ÉF)
ACCEL POS SEN I
Ignition switch: ON
(Engine stopped) Accelerator pedal: fully released
0.40 - 0.60V
Accelerator pedal: fully depressed Approx. 4.5V
FULL ACCEL SW I
Ignition switch: ON
(Engine stopped) Accelerator pedal: fully depressed ON
Except above
OFF
ACCEL SW (FC) I
Ignition switch: ON
(Engine stopped) Accelerator pedal: fully released
CLOSE
Accelerator pedal: slightly open OPEN
OFF ACCEL SW I
Ignition switch: ON
(Engine stopped) Accelerator pedal: fully released
ON
Accelerator pedal: slightly open OFF
SPILL/V IEngine: After warming up Approx. 13ÉCA
BATTERY VOLT IIgnition switch: ON (Engine stopped) 11 - 14V
P/N POSI SW IIgnition switch: ON Shift lever: Park/Neutral
ON
Except above OFF
START SIGNAL IIgnition switch: ON ,START ,ON OFF ,ON ,OFF
AIR COND SIG I
Engine: After warming up, idle the
engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)
ON
BRAKE SW IIgnition switch: ON Brake pedal: depressed ON
Brake pedal: released OFF
IGN SW IIgnition switch: ON ,OFF ON ,OFF
WARM UP SW IIgnition switch: ON Heat up switch: ON ON
Heat up switch: OFF OFF
MAS AIR/FL SE I
Engine: After warming up
I Air conditioner switch: OFF
I Shift lever: Neutral position
I No-load Idle 1.6 - 2.0V
DECELER F/CUT IEngine: After warming up Idle OFF
INJ TIMG C/V IEngine: After warming up, idle the engine. Approx. 50 - 70%
AIR COND RLY I
Engine: After warming up, idle the
engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)
ON
GLOW RLY IRefer to EC-244.
COOLING FAN I
When cooling fan is stopped. OFF
I When cooling fan operates. ON
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
EC-66
http://vnx.su/

MONITOR ITEMCONDITION SPECIFICATION
EGR VOL CON/V I
Engine: After warming up
I Air conditioner switch: ªOFFº
I Shift lever: Neutral position
I No-load After 1 minute of idling More than 10 steps
Revving engine from idle to 3,200 rpm 0 step
VNT S/V 1 I
Engine: After warming up
I Air conditioner switch: ªOFFº
I Shift lever: Neutral position
I No-load Idle Approx. 56%
2,000 rpm Approx. 20%
BARO SEN IIgnition switch: ON Altitude
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 (4,922 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)
SWRL CON S/V 1 I
Lift up the vehicle
I Engine: After warming up let it idle for
more than 1 second.
I Air conditioner switch: ªOFFº
I No-load Shift lever: Except ªPº and ªNeutralº posi-
tions
ON
Shift lever: Neutral position OFF
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
CONSULT-II Reference Value in Data Monitor
Mode (Cont'd)
EC-67
http://vnx.su/

Major Sensor Reference Graph in Data Monitor
Mode
The following are the major sensor reference graphs in ªDATA MONITORº mode.
ACCEL POS SEN, ªCKPS×RPM (TDC)º, ªMAS AIR/FL SEº
Below is the data for ªACCEL POS SENº, ªCKPS×RPM (TDC)º and ªMAS AIR/FL SEº when revving engine
quickly up to 3,000 rpm under no load after warming up engine to the normal operating temperature.
Each value is for reference, the exact value may vary.
SEF321Y
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
EC-68
http://vnx.su/

ECM HARNESS CONNECTOR TERMINAL LAYOUT
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 damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
2LG Intake air control valve
control solenoid valve Engine is running.
BATTERY VOLTAGE
(11 - 14V)
Ignition switch ªOFFº
For a few seconds after turning ignition
switch ªOFFº Approximately 0.1V
4 G ECM relay (Self-shutoff) Ignition switch ªONº
Ignition switch ªOFFº
For a few seconds after turning ignition
switch ªOFFº
Approximately 0.25V
Ignition switch ªOFFº
More than a few seconds after turning igni-
tion switch ªOFFº BATTERY VOLTAGE
(11 - 14V)
SEF064P
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-70
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
5 L/B Tachometer Engine is running.
Warm-up condition
Idle speed
Approximately 5.7V
SEF255Z
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 6V
SEF256Z
6 Y Engine oil lamp
Ignition switch ªONº
Approximately 0V
Engine is running.
BATTERY VOLTAGE (11 -
14V)
14 LG/R Cooling fan relay Engine is running.
Cooling fan is not operating
BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Cooling fan is operating Approximately 0.1V
15 G/PU Air conditioner relay 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
16 G/W Glow lamp Ignition switch ªONº
Glow lamp is ªONº
Approximately 1V
Ignition switch ªONº
Glow lamp is ªOFFº BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-71
http://vnx.su/