Condition NISSAN TERRANO 2002 Service Repair Manual

CONSULT-II Reference Value in Data Monitor
Mode
Remarks:
ISpecification data are reference values.
ISpecification 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
IRun engine and compare tachometer indication with the CONSULT-II value.Almost the same speed as the CON-
SULT-II value. CKPS×RPM (REF)
CMPS×RPM-PUMP
COOLAN TEMP/SIEngine: After warming up More than 70ÉC (158ÉF)
VHCL SPEED SEITurn drive wheels and compare speedometer indication with the CONSULT-II
valueAlmost the same speed as
the CONSULT-II value
FUEL TEMP SENIEngine: After warming up More than 40ÉC (104ÉF)
ACCEL POS SENIIgnition switch: ON
(Engine stopped)Accelerator pedal: release 0.40 - 0.60V
Accelerator pedal: depress Approx. 4.0V
FULL ACCEL SWIIgnition switch: ON
(Engine stopped)Accelerator pedal: depress ON
Except above OFF
ACCEL SW (FC)IIgnition switch: ON
(Engine stopped)Accelerator pedal: release CLOSE
Accelerator pedal: slightly open OPEN
OFF ACCEL SWIIgnition switch: ON
(Engine stopped)Accelerator pedal: release ON
Accelerator pedal: slightly open OFF
C/SLEEV POS/SIEngine: After warming up, idle the engine 1.0 - 3.5V
BATTERY VOLTIIgnition switch: ON (Engine stopped) 11 - 14V
P/N POSI SWIIgnition switch: ONShift lever: Neutral ON
Except above OFF
START SIGNALIIgnition switch: ON,START,ON OFF,ON,OFF
AIR COND SIGIEngine: After warming up, idle the
engineAir Conditioner switch: ªOFFº OFF
Air Conditioner switch: ªONº
(Compressor operates.)ON
IGN SWIIgnition switch: ON,OFF ON,OFF
MAS AIR/FL SEIEngine: After warming up
IAir Conditioner switch: ªOFFº
IShift lever: ªNº
INo-loadIdle 1.5 - 2.1V
2,000 rpm 2.3 - 2.9V
ACT INJ TIMGIEngine: After warming up
IAir Conditioner switch: ªOFFº
IShift lever: ªNº
INo-loadIdle þ5.0É to þ9.0É
2,000 rpm þ5.0É to þ18.0É
DECELER F/CUTIEngine: After warming upIdle OFF
When accelerator pedal is released
quickly with engine speed at 3,000 rpm
or more.ON
FUEL CUT S/VIIgnition switch: ON,OFF ON,OFF
AIR COND RLYIAir Conditioner switch: OFF,ON OFF,ON
GLOW RLYIRefer to EC-389.
TROUBLE DIAGNOSESTD27Ti
EC-343

MONITOR ITEM CONDITION SPECIFICATION
EGRC SOL/V AIEngine: After warming up
IAir Conditioner switch: ªOFFº
IShift lever: ªNº
INo-loadIdle ON
3,200 rpm OFF
EGRC SOL/V BIEngine: After warming up
IAir Conditioner switch: ªOFFº
IShift lever: ªNº
INo-loadIdle ON
3,000 rpm OFF
THROT RLYIEngine: After warming up
IAir Conditioner switch: ªOFFº
IShift lever: ªNº
INo-loadIdle ON
3,000 rpm OFF
TROUBLE DIAGNOSESTD27Ti
CONSULT-II Reference Value in Data Monitor
Mode (Cont'd)
EC-344

ECM Terminals and Reference Value
PREPARATION
Perform all voltage measurements with all the connectors con-
nected. Measure ECM terminal voltage at the nearest connector to
the sensors or actuators to be measured as accessing ECM termi-
nals from outside is impossible.
IUse extreme care not to touch 2 pins at the same time.
IData is for comparison and may not be exact.
IUse care not to enlarge the opening to keep the seal in good
condition.
Be sure ECM unit is properly grounded before checking.
ECM HARNESS CONNECTOR TERMINAL LAYOUT
SGI841
MEC032E
TROUBLE DIAGNOSESTD27Ti
EC-346

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 result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and
Pulse Signal)
101
102
103G/R
G/R
G/RFuel cut solenoid valve[Ignition switch ªOFFº]Approximately 0V
[Ignition switch ªONº]BATTERY VOLTAGE
(11 - 14V)
104
105
106B
B
BECM ground[Engine is running]
IIdle speedApproximately 0V
107
108
109Y
Y
YPower supply for ECM[Ignition switch ªONº]BATTERY VOLTAGE
(11 - 14V)
202 Y/RInjection timing control
valve[Engine is running]
IWarm-up condition
IIdle speedApproximately 10 - 12V
NEF480
[Engine is running]
IWarm-up condition
IEngine speed is 2,000 rpmApproximately9-14V
NEF481
204 G/PU Air conditioner relay[Engine is running]
IAir conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
IBoth air conditioner switch and blower fan switch
are ªONº
(Compressor is operating)Approximately 0.1V
205 Y/PU Oil pressure switch[Ignition switch ªONº]Approximately 0V
[Engine is running]
IIdle speedVoltages
208 R/Y EGRC-solenoid valve A[Engine is running]
IWarm-up condition
IIdle speedApproximately 0.7V
[Engine is running]
IWarm-up condition
IEngine speed is 2,800 rpmBATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSESTD27Ti
ECM Terminals and Reference Value (Cont'd)
EC-347

TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and
Pulse Signal)
210 Y/B EGRC-solenoid valve B[Engine is running]
IWarm-up condition
IIdle speedApproximately 0.4V
[Engine is running]
IWarm-up condition
IEngine speed is 2,500 rpmBATTERY VOLTAGE
(11 - 14V)
213 G/YThrottle control solenoid
valve[Engine is running]
IWarm-up condition
ILow loadApproximately 0V
Except above condition Battery voltage (12 - 14V)
214 LG Glow relay Refer to ªGlow Control Systemº, EC-389.
215 L Malfunction indicator (MI)[Ignition switch ªONº]Approximately 1.0V
[Engine is running]
IIdle speedBATTERY VOLTAGE
(11 - 14V)
218 G/R Sensors' ground[Engine is running]
IWarm-up condition
IIdle speedApproximately 0V
219 LG/R Cooling fan relay[Engine is running]
ICooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
ICooling fan is operatingApproximately 0.1V
221 G/W Glow lamp[Ignition switch ªONº]
IGlow lamp is ªONºApproximately 1V
[Ignition switch ªONº]
IGlow lamp is ªOFFºBATTERY VOLTAGE
(11 - 14V)
223 R/LMass air flow sensor
power supply[Ignition switch ªONº]Approximately 5V
224 L/W Mass air flow sensor[Engine is running]
IWarm-up condition
IIdle speed1.5 - 2.0V
320 WControl sleeve position
sensor[Engine is running]
IIdle speedApproximately 2.6V
NEF477
321 RControl sleeve position
sensor power supply[Engine is running]
IIdle speedApproximately 2.6V
NEF476
TROUBLE DIAGNOSESTD27Ti
ECM Terminals and Reference Value (Cont'd)
EC-348

TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and
Pulse Signal)
322 BControl sleeve position
sensor ground[Engine is running]
IIdle speedApproximately 2.6V
NEF476
325 L ECM relay (Self-shutoff)[Ignition switch ªONº]
[Ignition switch ªOFFº]
IFor a few seconds after turning ignition switch
ªOFFºApproximately 1.4V
[Ignition switch ªOFFº]
IA few seconds passed after turning ignition switch
ªOFFºBATTERY VOLTAGE
(11 - 14V)
331 L/RCrankshaft position sensor
(TDC) ground[Engine is running]
IWarm-up condition
IIdle speedApproximately 0V
333 R Needle lift sensor ground[Ignition switch ªONº]Approximately 0V
334 G/REngine coolant tempera-
ture sensor ground[Ignition switch ªONº]Approximately 0V
335 G/RFuel temperature sensor
ground[Engine is running]Approximately 0V
344 L/GCrankshaft position sensor
(TDC)[Engine is running]
IWarm-up condition
IIdle speedApproximately 0V
SEF333Y
[Engine is running]
IWarm-up condition
IEngine speed is 2,000 rpmApproximately 0V
SEF334Y
345 G Needle lift sensor[Engine is running]
IWarm-up condition
IIdle speedApproximately 3.5V
[Engine is running]
IWarm-up condition
IEngine speed is 2,000 rpmApproximately 3.5V
TROUBLE DIAGNOSESTD27Ti
ECM Terminals and Reference Value (Cont'd)
EC-349

TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and
Pulse Signal)
347 LG/WEngine coolant tempera-
ture sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant tempera-
ture
348 Y/B Fuel temperature sensor[Engine is running]0.6-5V
Output voltage varies with
fuel temperature.
349 G/RInjection timing control
valve ground[Ignition switch ªONº]Approximately 0V
403 G/R Air conditioner switch[Engine is running]
IAir conditioner switch is ªOFFºBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
IBoth air conditioner switch and blower fan switch
are ªONº
(Compressor is operating)Approximately 0.1V
405 G/Y Stop lamp switch[Ignition switch ªONº]
IBrake pedal fully releasedApproximately 0V
[Ignition switch ªONº]
IBrake pedal depressedBATTERY VOLTAGE
(11 - 14V)
416 Y/RBrake pedal position
switch[Ignition switch ªONº]
IBrake pedal fully releasedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch ªONº]
IBrake pedal depressedApproximately 0V
415 OR
Data link connector for
CONSULT-II[Engine is running]
IIdle speed (CONSULT-II is connected and turned
on)Approximately 0V
420 OR/RBATTERY VOLTAGE
(11 - 14V)
417 Y/B Vehicle speed sensor[Engine is running]
ILift up the vehicle
IIn 1st gear position
IVehicle speed is 10 km/h (6 MPH)0 - Approximately 8V
SEF891Y
[Engine is running]
ILift up the vehicle
IIn 2nd gear position
IVehicle speed is 30 km/h (19 MPH)Approximately 6V
SEF892Y
422 PU Start signal[Ignition switch ªONº]Approximately 0V
[Ignition switch ªSTARTº]BATTERY VOLTAGE
(11 - 14V)
425 R/BAccelerator position sen-
sor ground[Engine is running]
IWarm-up condition
IIdle speedApproximately 0V
TROUBLE DIAGNOSESTD27Ti
ECM Terminals and Reference Value (Cont'd)
EC-350

TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA (DC Voltage and
Pulse Signal)
426 BAccelerator position switch
(Idle) ground[Ignition switch ªONº]Approximately 0V
433 R/WAccelerator position sen-
sor power supply[Ignition switch ªONº]Approximately 5V
434 GAccelerator position sen-
sor[Ignition switch ªONº]
IAccelerator pedal fully released0.30 - 0.50V
[Ignition switch ªONº]
IAccelerator pedal fully depressed3.0 - 4.3V
435 L/YAccelerator position switch
(Idle)[Ignition switch ªONº]
IAccelerator pedal fully releasedApproximately 0V
[Ignition switch ªONº]
IAccelerator pedal depressedBATTERY VOLTAGE
(11 - 14V)
439 L/B Tachometer[Engine is running]
IWarm-up condition
IIdle speedApproximately 3.0V
SEF325Y
[Engine is running]
IWarm-up condition
IEngine speed is 2,000 rpmApproximately 3.0V
SEF326Y
507 B/W Ignition switch[Ignition switch ªOFFº]0V
[Ignition switch ªONº]BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSESTD27Ti
ECM Terminals and Reference Value (Cont'd)
EC-351

qA
Disconnect and reconnect harness
connectors, then retest.
Trouble is not fixed.
Check ECM pin terminals for damage or
the connection of ECM harness connector.
Reconnect ECM harness connector and
retest.
INSPECTION END
Component Inspection
MASS AIR FLOW SENSOR
1. Turn ignition switch to ªONº position.
2. Start engine and warm it up sufficiently.
3. Check voltage between mass air flow sensor connector termi-
nalq
5and engine ground.
Condition Voltage V
Ignition switch ªONº position (Engine stopped.) Approx. 1.0
Idle (Engine is warmed-up sufficiently.) Approx. 2.2
4. If NG, remove mass air flow sensor from air duct. Check hot film
for damage or dust.
MEC957D
NEF669
H
H
H
DTC P0100 MASS AIR FLOW SENTD27Ti
Diagnostic Procedure (Cont'd)
EC-360

ACCELERATOR POSITION SWITCH
The accelerator position switch detects OFF-accelerator switch sig-
nal and Full-accelerator switch signal and sends these signals to
the ECM. The ECM will then determine engine idle conditions.
These signals are also used for diagnosing the accelerator position
sensor.
INSPECTION START
CHECK OVERALL FUNCTION.
With CONSULT-II
1. Turn ignition switch to ªONº position.
2. Select ªFULL ACCELL SWº and ªOFF
ACCEL SWº in ªDATA MONITORº mode
with CONSULT-II.
3. Check ªFULL ACCEL SWº and ªOFF
ACCEL SWº signal under the following
conditions.
OFF ACCEL SW:
Accelerator pedal released
ÐON
Accelerator pedal depressed
Ð OFF
FULL ACCEL SW:
Accelerator pedal fully depressed
ÐON
Without CONSULT-II
1. Turn ignition switch to ªONº position.
2. Check voltage between ECM terminal
435
and body ground under the following condi-
tions:
Voltage:
Accelerator pedal released
Approximately 0V
Accelerator pedal fully depressed
Approximately 5V
NG
EOK
INSPECTION END
qA
MEC969D
MEC955D
H
H
DTC P0120 ACCEL POS SENSORTD27Ti
Diagnostic Procedure (Cont'd)
EC-369