battery NISSAN X-TRAIL 2003 Electronic Repair Manual

TROUBLE DIAGNOSIS
EC-687
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ECA24 BMass air flow sensor
ground[Engine is running]lWarm-up condition
lIdle speedApproximately 0V
A25 G/W Injector's ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
A26 LG/RAccelerator pedal position
sensor 2 ground[Ignition switch "ON"]Approximately 0V
A27 W Sensor's power supply[Ignition switch "ON"]Approximately 5V
A28 PU/RAccelerator pedal position
sensor 1 power supply[Ignition switch "ON"]Approximately 5V
A29 W/PU EDU injector check signal[Engine is running]
lWarm-up condition
lIdle speed1-5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm1-5V
A31 W/L Power supply for ECM[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
B3
B4
B5
B6W
OR/B
W/L
GYEGR volume control valve[Engine is running]
lWarm-up condition
lIdle speed0.1 - 14V
(Voltage signals of each ECM ter-
minals differ according to the con-
trol position of EGR volume
control valve.)
B9 G/BFuel injector adjustment
resistor No.2
[Ignition switch "ON"]0.2 - 4.8V
(There are individual differences
between fuel injector adjustment
resistors.) B10 Y/BFuel injector adjustment
resistor No.4
B11 R/BFuel injector adjustment
resistor No.3
B12 W/BFuel injector adjustment
resistor No.1
B13
B14Y/R
Y/RCommon rail fuel pressure
sensor[Engine is running]
lWarm-up condition
lIdle speed1.6 - 1.8V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm1.8 - 2.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0391E
PBIB0392E

TROUBLE DIAGNOSIS
EC-689
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EC
D1 L/OR Tachometer[Engine is running]
lWarm-up condition
lIdle speed0-12.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-12.5V
D2 OR Glow lamp[Ignition switch “ON”]
lGlow lamp is "ON"Approximately 1.0V
[Ignition switch “ON”]
lGlow lamp is "OFF"BATTERY VOLTAGE
(11 - 14V)
D9 OR/L Malfunction indicator[Ignition switch “ON”]Approximately 1.0V
[Engine is running]
lIdle speedBATTERY VOLTAGE
(11 - 14V)
D11 L Air conditioner relay[Engine is running]
lAir conditioner switch is "OFF"BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lBoth air conditioner switch and blower fan
switch are "ON" (Compressor is operating)Approximately 0.1V
D14 G/YAccelerator pedal
released position switch[Ignition switch “ON”]
lAccelerator pedal slightly depressedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
lAccelerator pedal fully releasedApproximately 0V
D18
D19W/R
W/RIgnition switch[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
D23 PU/W Air conditioner switch[Engine is running]
lAir conditioner switch is "OFF"BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lBoth air conditioner switch and blower fan
switch are "ON" (compressor is operating)Approximately 0.1V
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
lFor a few seconds after turning ignition
switch "OFF"Approximately 0V
[Ignition switch “OFF”]
lA few seconds passed after turning ignition
switch "OFF"BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0397E
PBIB0398E

EC-690
[YD]
TROUBLE DIAGNOSIS
D25 R/G Stop lamp switch[Ignition switch "ON"]lBrake pedal fully releasedApproximately 0V
[Ignition switch "ON"]
lBrake pedal depressedBATTERY VOLTAGE
(11 - 14V)
D27 B/Y Start signal[Ignition switch "ON"]Approximately 0V
[Ignition switch "START"]BATTERY VOLTAGE
(11 - 14V)
E1 LSuction control valve
power supply[Engine is running]
lWarm-up condition
lIdle speed0-12.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-12.5V
E2 LG Cooling fan relay (Low)[Engine is running]
lCooling fan is not operatingBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lCooling fan is operatingApproximately 0.1V
E7 LG/B Cooling fan relay (High)[Engine is running]
lCooling fan is not operating
lCooling fan is operating at low speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
lCooling fan is operating at high speedApproximately 0.1V
E8 Y/G Suction control valve 1[Engine is running]
lWarm-up condition
lIdle speed0-12.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-12.5V
E9 W/R Glow relay Refer toEC-796, "
GLOW CONTROL SYSTEM". TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0399E
PBIB0400E
PBIB0401E
PBIB0402E

TROUBLE DIAGNOSIS
EC-691
[YD]
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EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
CONSULT-II FunctionEBS0037H
CONSULT-II INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector, which is located
under the driver side dash panel.
E12 P/BPower steering oil pres-
sure switch[Engine is running]lSteering wheel is being turnedApproximately 0V
[Engine is running]
lSteering wheel is not being turnedBATTERY VOLTAGE
(11 - 14V)
E13 G/ORPark/Neutral position
switch[Ignition switch “ON”]
lGear position is "Neutral"Approximately 0V
[Ignition switch “ON”]
lExcept the above gear positionBATTERY VOLTAGE
(11 - 14V)
E16 G/W Suction control valve 2[Engine is running]
lWarm-up condition
lIdle speed0-12.5V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm0-12.5V
E21 L/B Vehicle speed sensor[Engine is running]
lLift up the vehicle
lIn 2nd gear position
lVehicle speed is 30 km/h (19 MPH)0-5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
PBIB0401E
PBIB0402E
PBIB0386E
PBIB0376E

EC-692
[YD]
TROUBLE DIAGNOSIS
3. Turn ignition switch ON.
4. Touch “START”.
5. Touch “ENGINE”.
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual.
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
SEF995X
PBIB0410E
ItemDIAGNOSTIC TEST MODE
SELF-DIAG
RESULTSDATA MONI-
TO RACTIVE
TEST
ENGINE CONTROL COMPONENT PARTS
INPUTCrankshaft position sensor (TDC)´´
Camshaft position sensor´
Engine coolant temperature sensor´´
Vehicle speed sensor´´
Fuel temperature sensor´´
Accelerator pedal position sensor 1´´
Accelerator pedal position sensor 2´´
Accelerator pedal released position switch´´
Common rail fuel pressure sensor´´
Park/neutral position (PNP) switch´
Mass air flow sensor´´
Battery voltage´´
Power steering oil pressure switch´
Stop lamp switch´
Absolute pressure sensor´´
Fuel injector adjustment resistor´
OUTPUTSuction control valve´´´
Fuel injector´´´
Glow relay´´
Cooling fan relay´´´
EGR volume control valve´´

TROUBLE DIAGNOSIS
EC-693
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EC
SELF-DIAGNOSTIC MODE
Regarding items detected in “SELF-DIAG RESULTS” mode, refer to —EC-654, "INDEX FOR DTC".
DATA MONITOR MODE
MONITOR ITEMECM
input
signalMain
signalsCONDITION SPECIFICATION
CKPS ·RPM (TDC) [rpm]´´
lThe engine speed computed from
the crankshaft position sensor (TDC)
signal is displayed.
COOLAN TEMP/S
[°C] or [°F]´´
lThe engine coolant temperature
(determined by the signal voltage of
the engine coolant temperature sen-
sor) is displayed.When the engine coolant temperature
circuit is open or short, ECM enters fail-
safe mode. The engine coolant temper-
ature determined by the ECM is dis-
played.
VHCL SPEED SE
[km/h] or [mph]´´
lThe vehicle speed computed form
the vehicle speed sensor signal is
displayed.
FUEL TEMP SEN [°C] or [°F]´´
lThe fuel temperature (determined by
the signal voltage of the fuel temper-
ature sensor) is displayed.
ACCEL POS SEN [V]´´
lThe accelerator pedal position sen-
sor 1 signal voltage is displayed.
ACCEL SEN 2 [V]´´
lThe accelerator pedal position sen-
sor 2 signal voltage is displayed.
OFF ACCEL SW [ON/OFF]´´
lindicates [ON/OFF] condition from
the accelerator pedal released posi-
tion switch signal.
ACT CR PRESS [MPa]´´
lThe common rail fuel pressure
(determined by the signal voltage of
the common rail fuel pressure sen-
sor) is displayed.
BATTERY VOLT [V]´´
lThe power supply voltage of ECM is
displayed.
P/N POSI SW [ON/OFF]´´
lIndicates [ON/OFF] condition from
the park/neutral position switch sig-
nal.
START SIGNAL [ON/OFF]´´
lindicates [ON/OFF] condition from
the starter signal.
PW/ST SIGNAL [ON/OFF]´
lindicates [ON/OFF] condition from
the power steering oil pressure
switch signal.
BRAKE SW [ON/OFF]´´
lindicates [ON/OFF] condition from
thestoplampswitchsignal.
IGN SW [ON/OFF]´´
lIndicates [ON/OFF] condition from
ignition switch signal.
MAS AIR/FL SE [V]´´
lThe signal voltage of the mass air
flow sensor is displayed.
SUCTION CV [°CA]´
lIndicates [°CA] of suction control
valve operating angle.
MAIN INJ WID [msec]´
lIndicates the actual fuel injection
pulse width compensated by ECM
according to the input signals.
GLOW RLY [ON/OFF]´
lThe glow relay control condition
(determined by ECM according to
the input signal) is displayed.

TROUBLE DIAGNOSIS
EC-697
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EC
MAS AIR/FL SE
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: Neutral position
lNo-loadIdle 1.0 - 2.5V
2,000 rpm 2.1 - 2.7V
BATTERY VOLT
lIgnition switch: ON (Engine stopped) 11 - 14V
P/N POSI SW
lIgnition switch: ONShift lever: Neutral position ON
Except above OFF
START SIGNAL
lIgnition switch: ON®START®ON OFF®ON®OFF
PW/ST SIGNAL
lEngine: After warming up, idle
the engineSteering wheel is in neutral posi-
tion. (Forward direction)OFF
Steering wheel is turned. ON
BRAKE SW
lIgnition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
IGN SW
lIgnition switch: ON®OFF ON®OFF
ACT CR PRESS
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: Neutral position
lNo-loadIdle 30 - 40 MPa
2,000 rpm 40 - 50 MPa
SUCTION CV
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: Neutral position
lNo-loadIdle 70.0 - 71.5°CA
2,000 rpm 73.5 - 75.0°CA
MAIN INJ WID
lEngine: After warming up
lShift lever: Neutral position
lIdle speedNo-load 0.68 - 0.78 msec
Air conditioner switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
GLOW RLY Refer toEC-796, "
GLOW CONTROL SYSTEM".
COOLING FAN
lWhen cooling fan is stopped. OFF
lWhen cooling fans operate at low speed. LOW
lWhen cooling fans operate at high speed. HIGH
EGR VOL CON/V
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: Neutral position
lNo-loadAfter one minute at idle More than 10 steps
Revvingenginefromidleto3,600
rpm0step
INT/A VOLUME
lEngine: After warming up, idle the engine 150 - 450 mg/st
BARO SEN
lIgnition switch: ONAltitude
Approx. 0m: Approx. 100.62 kPa
(1.0062 bar, 1.026 kg/cm
2,14.59
psi)
Approx. 1,000 m: Approx. 88.95
kPa (0.8895 bar, 0.907 kg/cm
2,
12.90 psi)
Approx. 1,500 m: Approx. 83.16
kPa (0.8316 bar, 0.848 kg/cm
2,
12.06 psi)
Approx. 2,000 m: Approx. 78.36
kPa (0.7836 bar, 0.799 kg/cm
2,
11 . 3 6 p s i )
CYL COUNT
lEngine is running 0®1®2®3 MONITOR ITEM CONDITION SPECIFICATION

EC-700
[YD]
POWER SUPPLY CIRCUIT FOR ECM
POWER SUPPLY CIRCUIT FOR ECM
PFP:24110
ECM Terminals and Reference ValueEBS00369
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)
A5
A6
A7B
B
BECM ground[Engine is running]
lIdle speedApproximately 0V
A8
A9R
RPower supply for ECM[Ignition switch "ON"]BATTERY VOLTAGE
(11 - 14V)
A31 W/L Power supply for ECM[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
D18
D19W/R
W/RIgnition switch[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
D24
D26G
GECM relay (self-shutoff)[Ignition switch “ON”]
[Ignition switch “OFF”]
lFor a few seconds after turning ignition
switch "OFF"Approximately 0V
[Ignition switch “OFF”]
lA few seconds passed after turning ignition
switch "OFF"BATTERY VOLTAGE
(11 - 14V)

EC-702
[YD]
POWER SUPPLY CIRCUIT FOR ECM
Diagnostic Procedure
EBS0036B
1.INSPECTION START
Start engine.
Is engine running?
Ye s o r N o
Yes >>GOTO6.
No >> GO TO 2.
2.CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminals D18, D19 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 M63, F30
lFuse block (J/B) connector M1
l10A fuse
lHarness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals A5, A6, A7 and engine ground. Refer to Wiring Dia-
gram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to power in harness or connectors.Voltage: Battery voltage
PBIB0356E
Continuity should exist.

POWER SUPPLY CIRCUIT FOR ECM
EC-703
[YD]
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EC
5.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Reconnect ECM harness connector.
2. Turn ignition switch “ON” and then “OFF”.
3. Check voltage between ECM terminals A8, A9 and ground with
CONSULT-II or tester.
OK or NG
OK >> Check EDU power supply circuit. Refer toEC-758,
"Diagnostic Procedure".
NG >> GO TO 6.
6.CHECK ECM POWER SUPPLY CIRCUIT-III
1. Disconnect ECM relay.
2. Check voltage between relay terminals 1, 6 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors E65, F6
l20A fuse
lHarness for open or short between ECM relay and battery
>> Repair open circuit or short to ground or short to power in harness or connectors. Vo l ta g e :
After turning ignition switch "OFF", battery
voltage will exist for a few seconds, then
drop to approximately 0V.
PBIB0357E
PBIB0377E
Voltage: Battery voltage
PBIB0359E