2002 NISSAN TERRANO g sensor

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 AA AB AC AD AE AF
ENGINE CONTROL
Accelerator switch (FC) circuit*a, *b 1
EC-104
*c
Fuel cut system line*a, *c
EC-232
*b 1 1 1 1 *2
Accelerator position sensor circuit *a, *b 1 1 1 EC-130
Crankshaft position sensor (TDC)
circuit*a, *b
EC-145
*d 1 1
Charge air pressure sensor circuit*a,
*b, *c1 1 EC-215
Swirl control valve control solenoid
valve circuit*a, *b
EC-263
*c 1111
Variable nozzle turbocharger control
solenoid valve circuit*a, *b 1 1
EC-281
*c 1 1
Intake air control valve control sole-
noid valve circuit*c 11111111EC-273
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-60

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 cutBLACK 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-232
*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-145
*d
Charge air pressure sensor circuit *a, *b, *c 1 1 EC-215
Swirl control valve control solenoid
valve circuit*a, *b 1
EC-263
*c 1 1 1
Variable nozzle turbocharger control
solenoid valve circuit*a, *b 1 1
EC-281
*c 1 1
Intake air control valve control sole-
noid valve circuit*c EC-273
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

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 AA AB AC AD AE AF
ENGINE CONTROL
Start signal circuit *a, *b 1 1 EC-248 *3
PNP switch circuit*a, *b 1
EC-251
*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 1 EC-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

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 cutBLACK SMOKE
WHITE SMOKEWarranty symptom code AG AH AJ AK AL AM AP HA
ENGINE CONTROL
Start signal circuit *a, *b EC-248 *3
PNP switch circuit*a, *b
1 1 EC-251
*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

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

TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and Pulse
Signal)
17 G/Y Stop lamp switchIgnition switch ªONº
Brake pedal fully releasedApproximately 0V
Ignition switch ªONº
Brake pedal depressedBATTERY VOLTAGE
(11 - 14V)
18 LMalfunction indicator
lampIgnition switch ªONº
Approximately 1V
Engine is running.
Idle speedBATTERY VOLTAGE
(11 - 14V)
19 LG/WEngine coolant tempera-
ture sensorEngine is running.
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature
20 PU Start signalIgnition switch ªONº
Approximately 0V
Ignition switch ªSTARTº
BATTERY VOLTAGE
(11 - 14V)
21 G/R Air conditioner switchEngine is running.
Air conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
Engine is running.
Both air conditioner switch and blower fan
switch are ªONº
(Compressor is operating)Approximately 0.1V
22BR/Y
(A/T)
G
(M/T)Park/Neutral position
switchIgnition 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 positionBATTERY VOLTAGE
(11 - 14V)
23 GAccelerator position sen-
sorIgnition switch ªONº
Accelerator pedal fully released0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressedApproximately 4.5V
24 G/Y A/T signal No. 1Engine is running.
Warm-up condition
Idle speedVoltage goes high up once in
a few seconds
SEF448Z
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-72

TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and Pulse
Signal)
26 Y/B Vehicle speed sensorEngine is running.
Lift up the vehicle
In 1st gear position
Vehicle speed is 10 km/h (6 MPH)0 - Approximately 4.8V
SEF257Z
Engine is running.
Lift up the vehicle
In 2nd gear position
Vehicle speed is 30 km/h (19 MPH)Approximately 2.2V
SEF258Z
29 LG/R Accelerator switch (F/C)Ignition switch ªONºAccelerator pedal fully releasedBATTERY VOLTAGE
(11 - 14V)
Ignition switch ªONº
Accelerator pedal depressedApproximately 0V
30 LG/Y A/T signal No. 3Engine is running.
Warm-up condition
Idle speedApproximately 0V
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 7.7V
31 L/YAccelerator position
switch (Idle)Ignition switch ªONº
Accelerator pedal fully releasedBATTERY VOLTAGE
(11 - 14V)
Ignition switch ªONº
Accelerator pedal depressedApproximately 0V
32 R/LAccelerator position
switch (Full)Ignition switch ªONº
Accelerator pedal releasedApproximately 0V
Ignition switch ªONº
Accelerator pedal fully depressedBATTERY VOLTAGE
(11 - 14V)
33 GElectronic control fuel
injection pumpEngine is running.
Warm-up condition
Idle speedApproximately 2.5V
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-73

TER-
MINAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and Pulse
Signal)
35 R Mass air flow sensorEngine is running.
Warm-up condition
Idle speed1.6 - 2.0V
37 LG/R A/T signal No. 2Engine is running.
Warm-up condition
Idle speedVoltage goes high up once in
a few seconds
SEF448Z
38 B/W Ignition switchIgnition switch ªOFFº
0V
Ignition switch ªONº
BATTERY VOLTAGE
(11 - 14V)
39
43B
BECM groundEngine is running.
Idle speedApproximately 0V
40 RElectronic control fuel
injection pumpEngine is running.
Warm-up condition
Idle speedApproximately 2.5V
42 OR
Data link connectorEngine is running.
Idle speed (CONSULT-II is connected and
turned on)Approximately 0V
64 OR/BApproximately 0V
65 OR/WLess than 9V
44 L/GCrankshaft position sen-
sor (TDC)Engine is running.
Warm-up condition
Idle speedApproximately 0V
SEF333Y
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 0V
SEF334Y
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-74