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![NISSAN X-TRAIL 2003 Service Repair Manual IGNITION SIGNAL
EC-423
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5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn NISSAN X-TRAIL 2003 Service Repair Manual IGNITION SIGNAL
EC-423
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5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn](/manual-img/5/57404/w960_57404-800.png)
IGNITION SIGNAL
EC-423
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5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn ignition switch ON.
4. Check voltage between condenser terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 6.
6. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect ECM relay.
3. Check harness continuity between ECM relay terminal 7 and
condenser terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
7. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
PBIB1969E
Voltage: Battery voltage
PBIB0624E
Continuity should exist.
PBIB1973E
Voltage: Battery voltage
PBIB0625E
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EC-424
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IGNITION SIGNAL
8. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E61, F38
20A fuse
Harness for open or short between ECM relay and battery
>> Repair or replace harness or connectors.
9. CHECK ECM RELAY
Refer to EC-426, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace ECM relay.
10. CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check harness continuity between condenser terminal 2 and ground.
Refer to Wiring diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 11.
NG >> Repair open circuit or short to power in harness or connector.
11 . CHECK CONDENSER
Refer to EC-426, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace condenser.Continuity should exist.
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![NISSAN X-TRAIL 2003 Service Repair Manual IGNITION SIGNAL
EC-425
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12. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. NISSAN X-TRAIL 2003 Service Repair Manual IGNITION SIGNAL
EC-425
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12. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3.](/manual-img/5/57404/w960_57404-802.png)
IGNITION SIGNAL
EC-425
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12. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect ignition coil harness connector.
4. Turn ignition switch ON.
5. Check voltage between ignition coil terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check harness for open or short between ignition coil and ECM relay.
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 15.
NG >> Repair open circuit or short to power in harness or connectors.
15. CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 60, 61, 79, 80 and ignition coil terminal 3.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 16.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1969E
Voltage: Battery voltage
SEF107S
Continuity should exist.
Continuity should exist.
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EC-426
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IGNITION SIGNAL
16. CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to EC-426, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace ignition coil with power transistor.
17. CHECK INTERMITTENT INCIDENT
Refer to EC-123, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS010V9
ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between relay terminals 3 and 5, 6 and 7.
3. If NG, replace ECM relay.
CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals 1 and 2.
Condition Continuity
12V direct current supply between ter-
minals 1 and 2Ye s
OFF No
PBIB0077E
Resistance: Above 1 MΩ at 25°C (77°F)
MBIB0031E
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IGNITION SIGNAL
EC-427
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IGNITION COIL WITH POWER TRANSISTOR
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as follows.
Removal and InstallationEBS010VA
IGNITION COIL WITH POWER TRANSISTOR
Refer to EM-29, "IGNITION COIL" .
Terminal No. Resistance Ω [at 25°C (77°F)]
2 and 3 Except 0 or ∞
1 and 2
Except 0
1 and 3
MBIB0032E
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EC-428
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INJECTOR CIRCUIT
INJECTOR CIRCUITPFP:16600
Component DescriptionEBS010VB
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 ModeEBS010VC
Specification data are reference values.
SEF375Z
MONITOR ITEM CONDITION SPECIFICATION
B/FUEL SCHDL See EC-119, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
INJ PULSE-B1
Engine: After warming up
Air conditioner switch: OFF
Shift lever: N (A/T), Neutral (M/T)
No loadIdle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
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INJECTOR CIRCUIT
EC-429
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Wiring DiagramEBS010VD
TBWA0630E
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![NISSAN X-TRAIL 2003 Service Repair Manual EC-430
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INJECTOR CIRCUIT
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use EC NISSAN X-TRAIL 2003 Service Repair Manual EC-430
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INJECTOR CIRCUIT
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use EC](/manual-img/5/57404/w960_57404-807.png)
EC-430
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INJECTOR CIRCUIT
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 ProcedureEBS010VE
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-
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NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
22
23
41
42G/B
R/B
L/B
Y/BInjector No. 3
Injector No. 1
Injector No. 4
Injector No. 2[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 is 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
PBIB0529E
PBIB0530E