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EC-560Revision: June 2006
ASCD INDICATOR
2007 Versa
Wiring DiagramUBS00QO3
BBWA2664E
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ASCD INDICATOR
EC-561
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Diagnostic ProcedureUBS00QO4
1. CHECK OVERALL FUNCTION
Check ASCD indicator under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
Ye s o r N o
Yes >> Perform trouble diagnoses for DTC U1000, U1001, refer to EC-151, "DTC U1000, U1001 CAN
COMMUNICATION LINE" .
No >> GO TO 3.
3. CHECK COMBINATION METER OPERATION
Does combination meter operate normally?
Ye s o r N o
Yes >> GO TO 4.
No >> Check combination meter circuit. Refer to DI-5, "
COMBINATION METERS" .
4. CHECK INTERMITTENT INCIDENT
Refer to EC-143, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
ASCD INDICATOR CONDITION SPECIFICATION
CRUISE LAMP
Ignition switch: ONMAIN switch: Pressed at 1st
time → 2ndON → OFF
SET LAMP
MAIN switch: ON
Vehicle: Between 40 km/h
(25 MPH) and 144 km/h (89
MPH)ASCD: Operating ON
ASCD: Not operating OFF
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EC-562Revision: June 2006
ELECTRICAL LOAD SIGNAL
2007 Versa
ELECTRICAL LOAD SIGNALPFP:25350
CONSULT-II Reference Value in Data Monitor ModeUBS00PTM
Specification data are reference values.
Diagnostic ProcedureUBS00PTN
1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCITION-I
1. Turn ignition switch ON.
2. Check “LOAD SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check “LOAD SIGNAL” in “DATA MONITOR” mode with CONSULT-
II under the following conditions.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Check “HEATER FAN SW” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
OK or NG
OK >>INSPECTION END.
NG >> GO TO 6.
MONITOR ITEM CONDITION SPECIFICATION
LOAD SIGNAL
Ignition switch: ONRear window defogger switch is ON and/or lighting
switch is in 2nd position.ON
Rear window defogger switch is OFF and lighting switch
is OFF.OFF
HEATER FAN SW
Ignition switch: ONHeater fan: Operating. ON
Heater fan: Not operating. OFF
Condition LOAD SIGNAL
Lighting switch: ON at 2nd position ON
Lighting switch: OFF OFF
PBIB0103E
Condition LOAD SIGNAL
Rear window defogger switch: ON ON
Rear window defogger switch: OFF OFF
PBIB0103E
Condition LOAD SIGNAL
Heater fan control switch: ON ON
Heater fan control switch: OFF OFF
PBIB1995E
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ELECTRICAL LOAD SIGNAL
EC-563
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4. CHECK HEADLAMP SYSTEM
Refer to LT- 5 , "
HEADLAMP (FOR USA)" or LT-27, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYS-
TEM -" .
>>INSPECTION END
5. CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to GW-50, "
REAR WINDOW DEFOGGER" .
>>INSPECTION END
6. CHECK HEATER FAN CONTROL SYSTEM
Refer to MTC-24, "
TROUBLE DIAGNOSIS" .
>>INSPECTION END
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EC-564Revision: June 2006
FUEL INJECTOR
2007 Versa
FUEL INJECTORPFP:16600
Component DescriptionUBS00PTO
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
CONSULT-II Reference Value in Data Monitor ModeUBS00PTP
Specification data are reference values.
PBIA9664J
MONITOR ITEM CONDITION SPECIFICATION
B/FUEL SCHDL See EC-133, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
INJ PULSE-B1
Engine: After warming up
Air conditioner switch: OFF
Shift lever: P or N (A/T, CVT),
Neutral (M/T)
No loadIdle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
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FUEL INJECTOR
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Wiring DiagramUBS00PTQ
BBWA2660E
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EC-566Revision: June 2006
FUEL INJECTOR
2007 Versa
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic ProcedureUBS00PTR
1. INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 3.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
25
29
30
31V
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LFuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idleBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
PBIB0529E
PBIA4943J
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FUEL INJECTOR
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2. CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
3. Make sure that each circuit produces a momentary engine
speed drop.
Without CONSULT-II
1. Start engine.
2. Listen to each fuel injector operating sound.
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
PBIB0133E
Clicking noise should be heard.
PBIB3332E