sensor NISSAN PRIMERA 1999 Electronic Owners Manual

ENGINE RELATED ITEMS
Detected items
(Screen terms for
CONSULT-II, ªSELF-DIAG
RESULTSº mode)Malfunction is detected when ...
MI
(Ð)*3
lMI (malfunction indicator) circuit is open or shorted.
GLOW LAMP CIRCUIT
(Ð)*3
lGlow lamp circuit is open or shorted.
Abbreviations for Quick Reference of ªDIAGNOSTIC TROUBLE CONFIRMATION PROCEDUREº
IGN: ON : Turning the ignition switch ON is required for checking the function of the sensor, switch, solenoid and circuit.
RUNNING : Running engine is required for checking the function of the sensor, switch, solenoid and circuit.
LIFTING : Lifting up the vehicle, running engine and spinning wheels are required.
DRIVING : Driving the vehicle in the specified pattern is required.
Abbreviations for Quick Reference of ªOVERALL FUNCTION CHECKº
IGN: ON : Turning the ignition switch ON is required for the ECM to detect a malfunction (if one exists).
RUNNING : Running engine is required for the ECM to detect a malfunction (if one exists).
LIFTING : Lifting up the vehicle, running engine and spinning wheels are required for the ECM to detect a malfunction (if one
exists).
DRIVING : Driving the vehicle in the specified pattern is required for the ECM to detect a malfunction (if one exists).
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
Diagnostic Trouble Chart (Cont'd)
EC-45

SYSTEM Ð Engine control module systemMalfunction
SYMPTOM
Reference page Feature of symptom
Check point
HARD/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 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 DECELERATINGBLACK SMOKE WHITE SMOKE
New CT/CS AA AB AC AD AE AF AG AH AJ AK AL AM AP HAEngine control moduleMass air flow sensor circuitopen, ground shortqqq q
EC-CD-62
shortqqq
Engine coolant temperature sensor
circuitopen, shortqqq qqq qqEC-CD-66Compensation according to
engine coolant temperature
does not function.
Vehicle speed sensor circuit or ABS
actuator and electric unit (control
unit) circuitopen, shortqqEC-CD-70
Control sleeve position sensor cir-
cuitopen, shortqqq qqqEC-CD-74
Electric governor circuitopen, ground shortq qqq qqq
EC-CD-78
shortqq
Injection timing control valve circuitopen, shortqqqq
EC-CD-82Injection timing cannot be
controlled.
ground shortqqq
Needle lift sensor circuit open, shortqqqqEC-CD-97
Fuel cut solenoid valve circuitopen, ground shortq qqq qqq
EC-CD-100
shortqqqEngine runs on after turning
ignition switch OFF.
Fuel temperature sensor circuit open, shortqq qq qq q qq qEC-CD-104Compensation for amount
of fuel injected according
to fuel temperature does
not function.
Accelerator position sensor circuit open, shortqqq qqEC-CD-108
Crankshaft position sensor (TDC)
circuitopen, shortqq qq
EC-CD-114
noiseqqq qq
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
Symptom Matrix Chart (Cont'd)
EC-48

SYSTEM Ð Engine control module systemMalfunction
SYMPTOM
Reference page Feature of symptom
Check point
HARD/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 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 DECELERATINGBLACK SMOKE WHITE SMOKE
New CT/CS AA AB AC AD AE AF AG AH AJ AK AL AM AP HAEngine control moduleStart signal circuit open, shortqqEC-CD-145 Start control does not function.
Air conditioner switch circuitopen, ground short
EC-CD-126Air conditioner does not stop
operating.
shortAir conditioner does not work.
Accelerator position switch (Idle)
circuitopen, ground shortqq q qq
EC-CD-108
shortqqq qqAccelerator position sensor NG
signal is output.
Ignition switch circuit (ON signal)openq qqq
EC-CD-59
shortEngine does not stop.
Power supply for ECM circuitopenqqq
EC-CD-59
shortqq
EGRC-solenoid valve circuitopen, shortqq
EC-CD-129
ground shortqqqDoes not stop operating.
Glow relay circuitopenqqqq q qq
EC-CD-118Glow lamp does not turn on.
shortqqGlow lamp does not turn off.
Engine control module relay (Self-
shutoff) circuitopenqqqq
EC-CD-59
shortqq qGround short makes engine
unable to stop.
Air conditioner relay circuitopen
EC-CD-126Air conditioner does not oper-
ate.
shortqqAir conditioner does not stop
operating.
Brake switch circuitsopenq
EC-CD-136
shortq
ECM, Connector circuit open, shortqqqqqqqqqqqqq qqqqqqqqqqqqEC-CD-86
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
Symptom Matrix Chart (Cont'd)
EC-49

Major Sensor Reference Graph in Data
Monitor Mode
The following are the major sensor reference graphs in ªDATA MONITORº mode.
(Select ªHI SPEEDº in ªDATA MONITORº with CONSULT-II.)
ACCEL POS SEN, C/SLEEV POS/S, ACT INJ TIMG
Below is the data for ªACCEL POS SENº, ªC/SLEEV POS/Sº and ªACT INJ TIMGº when revving engine
quickly up to 3,000 rpm under no load after warming up engine sufficiently.
Each value is for reference, the exact value may vary.
NEF780
lªACCEL POS SENº should increase
while depressing the accelerator
pedal and should decrease while
releasing it.
lªC/SLEEV POS/Sº should increase
when depressing the accelerator
pedal and should decrease when the pedal is
released.
lªACT INJ TIMGº should increase
when depressing the accelerator
pedal and should decrease when
the pedal is released.
ACT INJ TIMG
13:22-00º09
+04º95 16:06 x0.1V-00º09
+04º95 16:06 x0.1V-00º09
+04º95
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
EC-51

TER-
MINAL
NO.WIRE
COLORITEM CONDITIOND ATA
(DC Voltage and
Pulse Signal)
204 L/W Air conditioner relayEngine is running.
Both A/C switch and blower switch are
ªONºApproximately 0.4V
Engine is running.
A/C switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
208 P EGRC-solenoid valve AEngine is running.
(Warm-up condition)
Idle speedBATTERY VOLTAGE (11
- 14V)
Engine is running.
(Warm-up condition)
Engine speed is 2,800 rpmApproximately 0.3V
214 W/R Glow relay Refer to ªGlow control Systemº.
215 OR/L Malfunction indicatorIgnition switch ªONº
Approximately 1.0V
Engine is running.
Idle speedBATTERY VOLTAGE
(11 - 14V)
218 ORMass air flow sensor
groundEngine is running.
Idle speedApproximately 0V
219 LG/RCooling fan relay
(Low speed)Engine is running.
Cooling fan is not operating.BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Cooling fan is operating.Approximately 0.4V
220 LGCooling fan relay
(High speed)Engine is running.
Cooling fan is not operating.
Cooling fan is operating at low speed.BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Cooling fan is operating at high speed.Approximately 0.5V
221 P/L Glow lampIgnition switch ªONº
Glow lamp is ªONº.Approximately 1.0V
Ignition switch ªONº
Glow lamp is ªOFFºBATTERY VOLTAGE
(11 - 14V)
223 W/LMass air flow sensor
power supplyIgnition switch ªONº
Approximately 5V
224 L/W Mass air flow sensorEngine is running.
(Warm-up condition)
Idle speed1.9 - 2.3V
Engine is running.
(Warm-up condition)
Engine speed is 2,000 rpm2.5 - 2.9V
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
ECM Terminals and Reference Value (Cont'd)
EC-54

TER-
MINAL
NO.WIRE
COLORITEM CONDITIOND ATA
(DC Voltage and
Pulse Signal)
320 WControl sleeve position
sensor power supplyEngine is running.
Idle speedApproximately 2.6V
SEF559S
321 BControl sleeve position
sensor groundEngine is running.Idle speedApproximately 2.6V
SEF560S
322 RControl sleeve position
sensor (Reference sig-
nal)Engine is running.(Warm-up condition)
Idle speedApproximately 2.6V
SEF561S
325 W/GEngine control module
relay (Self-shutoff)Engine is running.
Ignition switch ªLOCKº
For a few seconds after turning ignition
switch to the ªLOCKº position0-1V
Ignition switch ªLOCKº
Following a few seconds delay after turning
ignition switch to the ªLOCKº positionBATTERY VOLTAGE
(11 - 14V)
331 ORCrankshaft position sen-
sor (TDC) groundEngine is running.
Idle speedApproximately 0V
333 BNeedle lift sensor
groundIgnition switch ªONº
Approximately 0V
334
335
436B Sensors' groundEngine is running.
Idle speedApproximately 0V
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
ECM Terminals and Reference Value (Cont'd)
EC-55

TER-
MINAL
NO.WIRE
COLORITEM CONDITIOND ATA
(DC Voltage and
Pulse Signal)
344 WCrankshaft position sen-
sor (TDC) (Signal)Engine is running.
(Warm-up condition)
Idle speedApproximately 0V
NEF867
Engine is running.
Engine speed is 2,000 rpmApproximately 0V
NEF868
345 W Needle lift sensorEngine is running.
(Warm-up condition)
Idle speedApproximately 3.8 - 4.0V
NEF869
Engine is running.(Warm-up condition)
Engine speed is 2,000 rpmApproximately 3.8 - 4.0V
NEF870
347 L/BEngine coolant tempera-
ture sensorEngine is running.
0.6 - 4.8V
Output voltage varies
with engine coolant tem-
perature.
348
411R/Y Fuel temperature sensor
Engine is running.
0.6 - 4.8V
Output voltage varies
with fuel temperature.
349 SB Fuel cut solenoid valveIgnition switch ªLOCKº
Approximately 0V
Ignition switch ªONº
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
ECM Terminals and Reference Value (Cont'd)
EC-56

TER-
MINAL
NO.WIRE
COLORITEM CONDITIOND ATA
(DC Voltage and
Pulse Signal)
403 GY Air conditioner switchEngine is running.
Both air conditioner switch and blower
switch are ªONº (Compressor operates)Approximately 0V
Engine is running.
Air conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
405 R/G Stop lamp switchIgnition switch ªONº
Brake pedal released0V
Ignition switch ªONº
Brake pedal depressedBattery voltage
(11 - 14V)
410 ORImmobilizer communica-
tionIgnition switch ªONº
BATTERY VOLTAGE
(4 - 14V)
416 R/B Brake switch 2Ignition switch ªONº
Brake pedal releasedBattery voltage
(11 -14V)
Ignition switch ªONº
Brake pedal depressed0V
417 OR/WVehicle speed sensor or
ABS actuator and elec-
tric unit (control unit)Engine is running.
Lift up the vehicle.
In 2nd gear position
Vehicle speed is 40 km/h (25 mph)0 - Approximately 4.2V
SEF552S
420 BR/W
Data link connector for
CONSULT-IIEngine is running.
Idle speed (CONSULT-II is connected and
turned on)Approximately4-9V
415 G/RApproximately 0V
425 BRAccelerator position sen-
sor groundEngine is running.
Idle speedApproximately 0V
433 LG/WAccelerator position sen-
sor power supplyIgnition switch ªONº
Approximately 5V
434 W/PUAccelerator position sen-
sorIgnition switch ªONº
Accelerator pedal released0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressedApproximately 4.0V
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
ECM Terminals and Reference Value (Cont'd)
EC-57

Mass Air Flow Sensor (MAFS)
The mass air flow sensor measures the amount of intake air by
analysing a part of the entire flow. When intake air flows into the
intake manifold, heat is withdrawn from the hot film. By regulat-
ing the electrical current that flows through the hot film, the ECM
maintains the hot film temperature on a constant level. The
amount of electric current that is needed to keep the hot film on
a constant temperature level is proportional to the mass of air
that flows into the engine.
Malfunction is detected when...Check Items
(Possible Cause)
lAn excessively high or low voltage from the sensor is
entered to ECM.lHarness or connectors
(The sensor circuit is open or shorted.)
lMass air flow sensor
DIAGNOSTIC TROUBLE CONFIRMATION
PROCEDURE
1) Turn ignition switch to ªONº position.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and wait for at least 20 seconds.
NEF663
TROUBLE DIAGNOSIS 1CD20T
EC-62

YEC799
BATTERY
Refer to EL-POWER.: Detectable line for DTC
: Non-detectable line for DTC
ENGINE
CONTROL
MODULE
RELAYMASS AIR
FLOW SEN-
SOR
ECM
TROUBLE DIAGNOSIS 1CD20T
Mass Air Flow Sensor (MAFS) (Cont'd)
EC-63