battery NISSAN X-TRAIL 2003 Electronic Repair Manual

DTC P1805 BRAKE SWITCH
EC-565
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Diagnostic ProcedureEBS00BJO
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch "OFF".
2. Check the stop lamp when depressing and releasing the brake pedal.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch harness connector.
2. Check voltage between stop lamp switch terminal 1 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
l15A fuse
lFuse block (J/B) connector M2
lHarness for open and short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
Brake pedal Stop lamp
Fully released Not illuminated
Depressed Illuminated
PBIB0498E
Voltage: Battery voltage
PBIB0117E

EC-568
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HO2S1 HEATER
HO2S1 HEATER
PFP:22690
DescriptionEBS00BJQ
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the heated oxygen sensor 1 heater corresponding to the engine
speed and engine coolant temperature. The duty percent varies with engine coolant temperature when engine
is started.
OPERATION
CONSULT-II Reference Value in Data Monitor ModeEBS00BJR
Specification data are reference values.
ECM Terminals and Reference ValueEBS00BJS
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.)Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)Engine speed
Heated oxygen sensor 1
heater controlHeated oxygen sensor 1 heater
Engine coolant temperature sensorEngine coolant tempera-
ture
Engine speed rpm Heated oxygen sensor 1 heater
Above 3,600 OFF
Below 3,600 ON
MONITOR ITEM CONDITION SPECIFICATION
HO2S1 HTR (B1)
lEngine: After warming up
lEngine speed: Below 3,600 rpmON
lEngine speed: Above 3,600 rpm OFF
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
2P/LHeated oxygen sen-
sor 1 heater[Engine is running]
lWarm-up condition
lEngine speed is below 3,600 rpm.Approximately 7.0V
[Engine is running]
lEngine speed is above 3,600 rpm.BATTERY VOLTAGE
(11 - 14V)
PBIB0519E

EC-570
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HO2S1 HEATER
Diagnostic Procedure
EBS00BJU
1.CHECK OVERALL FUNCTION CHECK
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch "OFF" and wait at least 10 seconds.
3. Turn ignition switch "ON".
4. Set the tester probe between ECM terminals 2 (HO2S1 heater signal) and ground.
5. Start engine and let it idle.
6. Check the voltage under the following conditions.
Verify that the oscilloscope screen shows the signal wave as
shown below.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
OK or NG
OK >>INSPECTION END.
NG >> GO TO 2.
2.CHECK HO2S1 POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect heated oxygen sensor 1 harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between HO2S1 terminal 4 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
Conditions Voltage
At idleApproximately 7.0V
Engine speed is above 3,600 rpmBATTERY VOLTAGE
(11 - 14V)
PBIB0673EPBIB0519E
PBIB0500E
Voltage: Battery voltage
PBIB0541E

HO2S2 HEATER
EC-573
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EC
HO2S2 HEATERPFP:226A0
DescriptionEBS00BJX
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed.
OPERATION
CONSULT-II Reference Value in Data Monitor ModeEBS00BJY
Specification data are reference values.
ECM Terminals and Reference ValueEBS00BJZ
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.
Sensor Input Signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Engine speedHeated oxygen sensor 2
heater controlHeated oxygen sensor 2 heater
Crankshaft position sensor (POS)
Engine speed rpm Heated oxygen sensor 2 heater
Above 3,800 OFF
Below 3,800 ON
MONITOR ITEM CONDITION SPECIFICATION
HO2S2 HTR (B1)
lEngine speed: Below 3,800 rpm [After driving for 2 minutes at a speed
of70km/h(43MPH)ormore]ON
lEngine speed: Above 3,800 rpm OFF
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
4PU/RHeated oxygen sen-
sor 2 heater[Engineisrunning]
lEngine speed is below 3,800 rpm.
lAfter driving for 2 minutes at a speed of 70 km/h
(43MPH)ormore.0-1.0V
[Ignition switch “ON”]
lEngine stopped
[Engineisrunning]
lEngine speed is above 3,800 rpm.BATTERY VOLTAGE
(11 - 14V)

HO2S2 HEATER
EC-575
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Diagnostic ProcedureEBS00BK1
1.CHECK OVERALL FUNCTION CHECK
1. Start engine and drive the vehicle at over 70 km/h (43 MPH) for 2 consecutive minutes.
2. Stop vehicle and keep the engine running.
3. Set the voltmeter probe between ECM terminal 4 (HO2S2 heater signal) and ground.
4. Check the voltage under the following conditions.
OK or NG
OK >>INSPECTION END.
NG >> GO TO 2.
2.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between HO2S2 terminal 4 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E60, F36
lFuse block (J/B) connector E103
l10A fuse
lHarness for open or short between heated oxygen sensor 2 and fuse
>> Repair harness or connectors.
Conditions Voltage
At idle 0 - 1V
Engine speed is above
3,800 rpmBattery voltage
PBIB0672E
PBIB0500E
Voltage: Battery voltage
PBIB0541E

EC-596
[QR (WITHOUT EURO-OBD)]
IGNITION SIGNAL
4.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check voltage between ECM terminals 109, 111 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> Go toEC-454, "
POWER SUPPLY CIRCUIT FOR ECM"
.
5.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
Check voltage between ECM terminal 12 and ground with CON-
SULT-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 harness connector.
3. Disconnect ECM relay.
4. Check harness continuity between ECM terminal 12 and ECM
relay terminal 7. Refer to Wiring Diagram.
5. 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.Voltage: Battery voltage
PBIB0580E
Voltage: Battery voltage
PBIB0136E
Continuity should exist.
PBIB0493E
Voltage: Battery voltage
PBIB0581E

EC-598
[QR (WITHOUT EURO-OBD)]
IGNITION SIGNAL
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 the following.
lHarness for open or short between ignition coil and ECM relay
lHarness for open or short between ignition coil and ECM
>> Repair or replace 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 engine 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.
PBIB0509E
Voltage: Battery voltage
SEF107S
Continuity should exist.

EC-602
[QR (WITHOUT EURO-OBD)]
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
13 PEVAP canister purge
volume control sole-
noid valve[Engine is running]
lIdle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lEngine speed is about 2,000 rpmApproximately 10V
PBIB0520E

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-605
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3.CHECK EVAP PURGE LINE
Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks or improper connection.
Refer toEC-648, "
EVAPORATIVE EMISSION LINE DRAWING".
OK or NG
OK >> GO TO 4.
NG >> Repair or reconnect the hose.
4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIR-
CUIT
1. Turn ignition switch “OFF”.
2. Disconnect EVAP canister purge volume control solenoid valve
harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between EVAP canister purge volume control
solenoid valve terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E60, F36
lFuse and fuse block (J/B) connector E103
l10A fuse
lHarness for open or short between EVAP canister purge volume control solenoid valve and fuse
>> Repair harness or connectors.
PBIB0501E
Voltage: Battery voltage
PBIB0148E

IVT CONTROL SOLENOID VALVE
EC-609
[QR (WITHOUT EURO-OBD)]
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ECM Terminals and Reference ValueEBS00B9B
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.) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
107 Y/RIntake valve timing
control solenoid valve[Engineisrunning]
lWarm-up condition
lIdle speedBATTERY VOLTAGE
(11 - 14V)
[Engineisrunning]
lWarm-up condition
lWhenrevvingengineupto2,000rpmquicklyApproximately 4V - BATTERY
V O LTA G E ( 11 - 1 4 V )
PBIB0532E