sensor NISSAN PRIMERA 1999 Electronic Repair Manual

6 CHECK IGNITION SPARK
1. Disconnect ignition wire from spark plug.
2. Connect a known good spark plug to the ignition wire.
3. Place end of spark plug against a suitable ground and crank engine.
4. Check for spark.
SEF282G
OK or NG
OK©GO TO 8.
NG©GO TO 7.
7 CHECK IGNITION WIRES
Refer to ªComponent Inspectionº, EC-SR-310.
OK or NG
OK©Check ignition coil, power transistor and their circuits. Refer to EC-SR-310.
NG©Replace.
8 CHECK INJECTOR
1. Turn ignition switch ªOFFº.
2. Remove injector assembly. Refer to EC-SR-32.
Keep fuel hose and all injectors connected to injector gallery.
3. Disconnect camshaft position sensor harness connector.
4. Turn ignition switch ªONº.
Make sure fuel does not drip from injector.
OK or NG
OK (Does not drip)©GO TO 9.
NG (Drips)©Replace the injector(s) from which fuel is dripping.
9 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-SR-114.
Trouble is fixed©INSPECTION END
Trouble is not fixed©Replace three way catalyst.
Ignition wire
Spark plug
DTC P0420 THREE WAY CATALYST FUNCTIONSR20DE
Diagnostic Procedure (Cont'd)
EC-249

DescriptionNCEC0248SYSTEM DESCRIPTIONNCEC0248S01
Sensor Input Signal to ECMECM func-
tionActuator
Crankshaft position sensor (POS) Engine speed
EVAP can-
ister purge
controlEVAP canister purge volume
control solenoid valve Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Battery Battery voltage
Ignition switch Start signal
Closed throttle position switch Closed throttle position
Throttle position sensor Throttle position
Heated oxygen sensor 1 (front)Density of oxygen in exhaust gas
(Mixture ratio feedback signal)
Vehicle speed sensor or ABS actuator and
electric unit (control unit)Vehicle speed
This system controls flow rate of fuel vapor from the EVAP canis-
ter. The opening of the vapor by-pass passage in the EVAP canis-
ter purge volume control solenoid valve changes to control the flow
rate. The EVAP canister purge volume control solenoid valve
repeats ON/OFF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engine control.
The optimum value stored in the ECM is determined by consider-
ing various engine conditions. When the engine is operating, the
flow rate of fuel vapor from the EVAP canister is regulated as the
air flow changes.
COMPONENT DESCRIPTIONNCEC0248S02The EVAP canister purge volume control solenoid valve uses a
ON/OFF duty to control the flow rate of fuel vapor from the EVAP
canister. The EVAP canister purge volume control solenoid valve
is moved by ON/OFF pulses from the ECM. The longer the ON
pulse, the greater the amount of fuel vapor that will flow through the
valve.
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0249
MONITOR ITEM CONDITION SPECIFICATION
PURG VOL C/VIEngine: RunningVehicle stopped 0%
Vehicle running Ð
SEF337U
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL
SOLENOID VALVE (CIRCUIT)SR20DE
Description
EC-250

Component DescriptionNCEC0272MODELS WITH VEHICLE SPEED SENSOR
The vehicle speed sensor is installed in the transaxle. It contains a
pulse generator which provides a vehicle speed signal to the
speedometer. The speedometer then sends a signal to the ECM.
MODELS WITHOUT VEHICLE SPEED SENSOR
The ABS actuator and electric unit (control unit) provides a vehicle
speed signal to the speedometer. The speedometer then sends a
signal to the ECM.
ECM Terminals and Reference ValueNCEC0273Specification data are reference values and are measured between each terminal and 48 (ECM ground).
TERMI-
NAL NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
86 OR/WVehicle speed sensor or
ABS actuator and electric
unit (control unit)[Engine is running]
ILift up the vehicle
IIn 2nd gear position
IVehicle speed is 40 km/h (25 MPH)Approximately 2.5V
SEF976W
On Board Diagnosis LogicNCEC0274
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0500
0500IThe almost 0 km/h (0 MPH) signal from vehicle speed
sensor or ABS actuator and electric unit (control unit) is
sent to ECM even when vehicle is being driven.Models with vehicle speed sensor
IHarness or connector
(The vehicle speed sensor circuit is open or
shorted.)
IVehicle speed sensor
Models without vehicle speed sensor
IHarness or connector
(The ABS actuator and electric unit (control unit)
is open or shorted.)
IABS actuator and electric unit (control unit)
DTC Confirmation ProcedureNCEC0275CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test.
TESTING CONDITION:
This procedure may be conducted with the drive wheels lifted
in the shop or by driving the vehicle. If a road test is expected
to be easier, it is unnecessary to lift the vehicle.
SEF080X
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Component Description
EC-255

With CONSULT-II
1) Start engine
2) Read vehicle speed sensor signal in ªDATA MONITORº mode
with CONSULT-II. The vehicle speed on CONSULT-II should
exceed 10 km/h (6 MPH) when rotating wheels with suitable
gear position.
3) If NG, go to ªDiagnostic Procedureº, EC-SR-260.
If OK, go to following step.
4) Select ªDATA MONITORº mode with CONSULT-II.
5) Warm engine up to normal operating temperature.
6) Maintain the following conditions for at least 10 consecutive
seconds.
ENG SPEED 2,000 - 3,000 rpm (CVT)
2,700 - 3,000 rpm (M/T)
COOLAN TEMP/S More than 70ÉC (158ÉF)
B/FUEL SCHDL 5 - 8.5 msec (CVT)
5 - 14.5 msec (M/T)
Selector lever Suitable position
PW/ST SIGNAL OFF
7) If 1st trip DTC is detected, go to ªDiagnostic Procedureº, EC-
SR-260.
With GST
Follow the procedure ªWith CONSULT-IIº above.
NEF112A
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
DTC Confirmation Procedure (Cont'd)
EC-256

Wiring DiagramNCEC0277MODELS BEFORE VIN - P11U0548750
YEC844
IGNITION SWITCH
ON or START
Refer to EL-POWER.: Detectable line for DTC
: Non-detectable line for DTC
: Hyper CVT models
: M/T models FUSE
BLOCK
(J/B)
COMBINATION
METER
(SPEEDOMETER)
ECM
REFER TO THE FOLLOWING
FUSE BLOCK -
Junction Box (J/B) VEHICLE
SPEED
SENSOR BATTERY
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Wiring Diagram
EC-257

MT MODELS WITH ABS AFTER VIN - P11U0548750
YEC091A
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Wiring Diagram (Cont'd)
EC-258

EXCEPT MT MODELS WITH ABS AFTER VIN - P11U0548750
YEC092A
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Wiring Diagram (Cont'd)
EC-259

Diagnostic ProcedureNCEC0278MODELS BEFORE VIN - P11U0548750
1 CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 86 and meter terminal 9.
Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F104, M50 (CVT: F115, M81)
IHarness for open or short between ECM and combination meter
©Repair open circuit or short to ground or short to power in harness or connectors.
Check Audio circuit and other linked circuit for short to ground or short to power power.
Refer to EL section.
3 CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK©GO TO 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M50, F104 and M52, F103 (CVT: M81, F115 and M80, F114)
IHarness for open or short between combination meter and vehicle speed sensor
©Repair harness or connectors. Check vehicle speed sensor and its circuit. Refer to EL
section.
5 CHECK INTERMITTENT INCIDENT
Check combination meter internal circuit for short to ground or short to power. Refer to EL section.
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-SR-114.
©INSPECTION END
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Diagnostic Procedure
EC-260

MT MODELS WITH ABS AFTER VIN - P11U0548750
1 CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 86 and meter terminal 4.
Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F104, M50 (CVT: F115, M81)
IHarness for open or short between ECM and combination meter
©Repair open circuit or short to ground or short to power in harness or connectors.
Check Audio circuit and other linked circuit for short to ground or short to power. Refer to
EL section.
3 CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK©GO TO 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M50, F104
IHarness for open or short between combination meter and vehicle speed sensor
©Repair harness or connectors. Check vehicle speed sensor and its circuit. Refer to EL
section.
5 CHECK INTERMITTENT INCIDENT
Check combination meter internal circuit for short to ground or short to power. Refer to EL section.
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-SR-114.
©INSPECTION END
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Diagnostic Procedure (Cont'd)
EC-261

EXCEPT MT MODELS WITH ABS AFTER VIN - P11U0548750
1 CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 86 and meter terminal 4.
Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F104, M50 (CVT: F115, M81)
IHarness for open or short between ECM and combination meter
©Repair open circuit or short to ground or short to power in harness or connectors.
Check Audio circuit and other linked circuit for short to ground or short to power power.
Refer to EL section.
3 CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK©GO TO 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M80, F114 and M81, F115
IHarness for open or short between combination meter and vehicle speed sensor
©Repair harness or connectors. Check vehicle speed sensor and its circuit. Refer to EL
section.
5 CHECK INTERMITTENT INCIDENT
Check combination meter internal circuit for short to ground or short to power. Refer to EL section.
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-SR-114.
©INSPECTION END
DTC P0500 VEHICLE SPEED SENSOR (VSS)SR20DE
Diagnostic Procedure (Cont'd)
EC-262