Page 1729 of 3066
PNP SWITCH
EC-615
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Wiring DiagramEBS00B9J
TBWA0081E
Page 1730 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual EC-616
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PNP SWITCH
Diagnostic Procedure
EBS00B9K
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch "ON".
2. Select "P/N POSI SW" in "DATA MONITOR" mode with CON-
NISSAN X-TRAIL 2003 Electronic Repair Manual EC-616
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PNP SWITCH
Diagnostic Procedure
EBS00B9K
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch "ON".
2. Select "P/N POSI SW" in "DATA MONITOR" mode with CON-](/manual-img/5/57402/w960_57402-1729.png)
EC-616
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PNP SWITCH
Diagnostic Procedure
EBS00B9K
1.CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch "ON".
2. Select "P/N POSI SW" in "DATA MONITOR" mode with CON-
SULT-II.
3. Check the "P/N POSI SW" signal under the following conditions.
Without CONSULT-II
1. Turn ignition switch "ON".
2. Check voltage between ECM terminal 43 and ground under the
following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect PNP switch harness connector.
3. Check harness continuity between PNP switch terminal 2 and body ground. Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or connectors.
Selector lever position P/N POSI SW signal
"P" and "N" position ON
Except the above position OFF
PBIB0102E
Selector lever position Voltage
"P" and "N" position Approximately 0V
Except the above positionA/T models: Battery voltage
M/T models: Approximately 5V
PBIB0679E
Continuity should exist.
Page 1731 of 3066
PNP SWITCH
EC-617
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3.CHECK INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 43 and PNP switch terminal 1. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to power in harness or connectors.
4.CHECK PNP SWITCH
Refer toAT- 3 8 8 , "
PNP Switch"(A/T models) orMT-13, "PARK/NEUTRAL POSITION SWITCH"(M/T mod-
els).
OK or NG
OK >> GO TO 5.
NG >> Replace PNP switch.
5.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.
Page 1732 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual EC-618
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INJECTOR CIRCUIT
INJECTOR CIRCUIT
PFP:16600
Component DescriptionEBS00B9L
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the inj NISSAN X-TRAIL 2003 Electronic Repair Manual EC-618
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INJECTOR CIRCUIT
INJECTOR CIRCUIT
PFP:16600
Component DescriptionEBS00B9L
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the inj](/manual-img/5/57402/w960_57402-1731.png)
EC-618
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INJECTOR CIRCUIT
INJECTOR CIRCUIT
PFP:16600
Component DescriptionEBS00B9L
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the injector circuit, the coil in the injector is
energized. The energized coil pulls the needle valve back and allows
fuel to flow through the injector into the intake manifold. The amount
of fuel injected depends upon the injection pulse duration. Pulse
duration is the length of time the injector remains open. The ECM
controls the injection pulse duration based on engine fuel needs.
CONSULT-II Reference Value in Data Monitor ModeEBS00B9M
Specification data are reference values.
ECM Terminals and Reference ValueEBS00B9N
Specification data are reference values and are measured between each terminal and body 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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
SEF375Z
MONITOR ITEM CONDITION SPECIFICATION
B/FUEL SCHDL
lEngine: After warming up
lShift lever: N
lAir conditioner switch: OFF
lNo-loadIdle 2.5 - 3.5 msec
2,000 rpm 2.5 - 3.5 msec
INJ PULSE-B1
lEngine: After warming up
lShift lever: N
lAir conditioner switch: OFF
lNo-loadIdle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
101
102
103
104R/B
Y/B
G/B
L/BInjector No. 1
Injector No. 2
Injector No. 3
Injector No. 4[Engine is running]
lWarm-up condition
lIdle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
PBIB0529E
PBIB0530E
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INJECTOR CIRCUIT
EC-619
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Wiring DiagramEBS00B9O
TBWA0082E
Page 1734 of 3066
EC-620
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INJECTOR CIRCUIT
Diagnostic Procedure
EBS00B9P
1.INSPECTION START
Turn ignition switch to “START”.
Is any cylinder ignited?
Ye s o r N o
Yes >>GOTO2.
No >> GO TO 3.
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 injector operating sound.
Clicking noise should be heard.
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
PBIB0133E
MEC703B
Page 1735 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual INJECTOR CIRCUIT
EC-621
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3.CHECK INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect injector harness connector.
3. Turn ign NISSAN X-TRAIL 2003 Electronic Repair Manual INJECTOR CIRCUIT
EC-621
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3.CHECK INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect injector harness connector.
3. Turn ign](/manual-img/5/57402/w960_57402-1734.png)
INJECTOR CIRCUIT
EC-621
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3.CHECK INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect injector harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between injector terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors M61, F41
lHarness connectors F1, F101
lFuse block (J/B) connector M1
l10A fuse
lHarness for open or short between injector and fuse
>> Repair harness or connectors.
5.CHECK INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector terminal 2 and ECM terminals 101, 102, 103, 104.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
PBIB0510E
Voltage: Battery voltage
PBIB0582E
Continuity should exist.
Page 1736 of 3066
EC-622
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INJECTOR CIRCUIT
6.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors F1, F101
lHarness for open or short between injector and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK INJECTOR
Refer toEC-622, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace injector.
8.CHECK INTERMITTENT INCIDENT
Refer toEC-453, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00B9Q
INJECTOR
1. Disconnect injector harness connector.
2. Check resistance between terminals as shown in the figure.
Removal and InstallationEBS00B9R
INJECTOR
Refer toEM-29, "FUEL INJECTOR AND FUEL TUBE". Resistance: 13.5 - 17.5W[at 20°C(68°F)]
PBIB0181E