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![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
EC-919
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ECM Harness Connector Terminal LayoutEBS0117E
ECM Terminals And Reference ValueEBS0117F
PREPARATION
1. ECM is located behind t NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
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ECM Harness Connector Terminal LayoutEBS0117E
ECM Terminals And Reference ValueEBS0117F
PREPARATION
1. ECM is located behind t](/manual-img/5/57404/w960_57404-1296.png)
TROUBLE DIAGNOSIS
EC-919
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ECM Harness Connector Terminal LayoutEBS0117E
ECM Terminals And Reference ValueEBS0117F
PREPARATION
1. ECM is located behind the glove box. For this inspection,
remove glove box.
2. Remove ECM harness protector.
3. When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown in the figure.
4. Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.
Use extreme care not to touch 2 pins at one time.
Data is for comparison and may not be exact.
ECM INSPECTION TABLE
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.
MBIB0045E
PBIB1899E
PBIB1512E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
1
2
3B
B
BECM ground[Engine is running]
Idle speedApproximately 0V
Page 1298 of 4179
EC-920
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
4
5W/B
G/BFuel injector power supply
(For cylinder No. 1 and 4)
Fuel injector power supply
(For cylinder No. 2 and 3)[Engine is running]
Warm-up condition
Idle speed5 - 10V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm5 - 10V
6LTurbocharger boost control
solenoid valve[Ignition switch ON]
Warm-up condition
Idle speed0 - 12.5V
[Ignition switch ON]
Warm-up condition
Engine speed is 2,000 rpm0 - 12.5V
10 Y/L Fuel pump power supply[Engine is running]
Warm-up condition
Idle speed0 - 12.5V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 12.5V
14 W/PU Fuel level switch[Ignition switch ON]
Some fuel is in the fuel tankApproximately 0V
[Ignition switch ON]
No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0883E
MBIB0884E
MBIB0889E
MBIB0890E
MBIB0885E
MBIB0886E
Page 1299 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
EC-921
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19 L Air conditioner relay[Engine is running]
Air conditioner switch is OFFBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Bo NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
EC-921
[YD (WITH EURO-OBD)]
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19 L Air conditioner relay[Engine is running]
Air conditioner switch is OFFBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Bo](/manual-img/5/57404/w960_57404-1298.png)
TROUBLE DIAGNOSIS
EC-921
[YD (WITH EURO-OBD)]
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19 L Air conditioner relay[Engine is running]
Air conditioner switch is OFFBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Both air conditioner switch and blower fan
switch are ON (Compressor is operating)Approximately 0.1V
21
22
23
24G/R
GY/L
G/R
GY/LFuel injector No. 2
Fuel injector No. 2
Fuel injector No. 3
Fuel injector No. 3[Engine is running]
Warm-up condition
Idle speed0 - 9V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 9V
25
26
27
28GY
W/L
OR/B
GY/BEGR volume control valve[Engine is running]
Warm-up condition
Idle speed0.1 - 14V
(Voltage signals of each ECM ter-
minals differ according to the con-
trol position of EGR volume
control valve.)
29 L Fuel pump[Engine is running]
Warm-up condition
Idle speed0.5 - 1.0V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0.5 - 1.0V
34 LG/B Cooling fan relay (High)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at low speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Cooling fan is operating at high speedApproximately 0.1V
36 LG Cooling fan relay (Low)[Engine is running]
Cooling fan is not operating
Cooling fan is operating at high speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Cooling fan is operating at low speedApproximately 0.1V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0881E
MBIB0882E
MBIB0887E
MBIB0888E
Page 1300 of 4179
EC-922
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
37 W/R Glow relay Refer to EC-1169, "GLOW CONTROL SYSTEM" .
39 B/OR Fuel transport pump relay[Engine is running]
Some fuel is in the fuel tankApproximately 0V
[Engine is running]
No fuel is in the fuel tankBATTERY VOLTAGE
(11 - 14V)
40
41
42
43G/R
GY/L
G/R
GY/LFuel injector No. 4
Fuel injector No. 4
Fuel injector No. 1
Fuel injector No. 1[Engine is running]
Warm-up condition
Idle speed0 - 9V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 9V
44 L/WCrankshaft position sen-
sor power supply[Ignition switch ON]Approximately 5.3V
45 G/ORCamshaft position sensor
power supply[Ignition switch ON]Approximately 5.3V
46 L Crankshaft position sensor[Engine is running]
Warm-up condition
Idle speed0 - 6V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 6V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0881E
MBIB0882E
MBIB0879E
MBIB0880E
Page 1301 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
EC-923
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47 G/R Camshaft position sensor[Engine is running]
Warm-up condition
Idle speed0 - 6V
[Engine is running]
Warm-up conditio NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
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47 G/R Camshaft position sensor[Engine is running]
Warm-up condition
Idle speed0 - 6V
[Engine is running]
Warm-up conditio](/manual-img/5/57404/w960_57404-1300.png)
TROUBLE DIAGNOSIS
EC-923
[YD (WITH EURO-OBD)]
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47 G/R Camshaft position sensor[Engine is running]
Warm-up condition
Idle speed0 - 6V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm0 - 6V
48
49Y/R
RFuel rail pressure sensor[Engine is running]
Warm-up condition
Idle speed1.7 - 2.0V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm2.0 - 2.3V
50 PUFuel pump temperature
sensor[Engine is running]
Warm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
51 L/OREngine coolant tempera-
ture sensor[Engine is running]
Warm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with engine
coolant temperature
52 Y Turbocharger boost sensor[Engine is running]
Warm-up condition
Idle speed2.3 - 2.6V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm2.5 - 2.8V
54 W Mass air flow sensor[Engine is running]
Warm-up condition
Idle speed1.8 - 2.3V
[Engine is running]
Warm-up condition
Engine speed is 2,000 rpm2.5 - 3.0V
55 GIntake air temperature sen-
sor[Engine is running]
Warm-up conditionApproximately 0.3 - 5.2V
Output voltage varies with intake
air temperature
59
60
61
62W/B
Y/B
G/B
R/BFuel injector adjustment
resistor No. 1
Fuel injector adjustment
resistor No. 3
Fuel injector adjustment
resistor No. 4
Fuel injector adjustment
resistor No. 2[Ignition switch ON]0.5 - 5.1V
(There are individual differences
between fuel injector adjustment
resistors.) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0877E
MBIB0878E
Page 1302 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EC-924
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supply[Ignition switch ON]Approxi NISSAN X-TRAIL 2003 Service Repair Manual EC-924
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supply[Ignition switch ON]Approxi](/manual-img/5/57404/w960_57404-1301.png)
EC-924
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
63 WFuel rail pressure sensor
power supply[Ignition switch ON]Approximately 5.3V
64 WTurbocharger boost sensor
power supply[Ignition switch ON]Approximately 5.3V
65 L/RCrankshaft position sen-
sor ground[Ignition switch ON]Approximately 0.3V
66 G/YCamshaft position sensor
ground[Ignition switch ON]Approximately 0.3V
67 —Sensor ground
(Sensors shield circuit)[Ignition switch ON]Approximately 0.3V
68 BFuel rail pressure sensor
ground[Ignition switch ON]Approximately 0.3V
69 BFuel pump temperature
sensor ground[Ignition switch ON]Approximately 0.3V
70 BEngine coolant tempera-
ture sensor ground[Ignition switch ON]Approximately 0.3V
71 BTurbocharger boost sensor
ground[Ignition switch ON]Approximately 0.3V
73 BMass air flow sensor
ground[Ignition switch ON]Approximately 0.3V
74 RIntake air temperature sen-
sor ground[Ignition switch ON]Approximately 0.3V
78 RFuel injector adjustment
resistor ground[Ignition switch ON]Approximately 0.3V
82 BAccelerator pedal position
sensor 1 power supply[Ignition switch ON]Approximately 5.3V
83 WAccelerator pedal position
sensor 1[Ignition switch ON]
Engine stopped
Accelerator pedal: Fully released0.5 - 1.0V
[Ignition switch ON]
Engine stopped
Accelerator pedal: Fully depressed4.2 - 5.2V
84 RAccelerator pedal position
sensor 1 ground[Ignition switch ON]Approximately 0.3V
85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Ignition switch ON]Approximately 0.3V
87 GY/R CAN communication line[Ignition switch ON]Approximately 2.0 - 2.6V
Output voltage varies with the
communication status.
89 LG Data link connector[Ignition switch ON]
CONSULT-II is disconnected.Approximately 0V - Battery volt-
age (11 - 14V)
90 LAccelerator pedal position
sensor 2 power supply[Ignition switch ON]Approximately 5.3V
91 GAccelerator pedal position
sensor 2[Ignition switch ON]
Engine stopped
Accelerator pedal: Fully released0.4 - 0.7V
[Ignition switch ON]
Engine stopped
Accelerator pedal: Fully depressed2.2 - 2.7V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
Page 1303 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
EC-925
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)92 YAccelerator pedal position
sens NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
EC-925
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)92 YAccelerator pedal position
sens](/manual-img/5/57404/w960_57404-1302.png)
TROUBLE DIAGNOSIS
EC-925
[YD (WITH EURO-OBD)]
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)92 YAccelerator pedal position
sensor 2 ground[Ignition switch ON]Approximately 0.3V
95 G/R CAN communication line[Ignition switch ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
99 B/Y Start signal[Ignition switch ON]Approximately 0.3V
[Ignition switch START]BATTERY VOLTAGE
(11 - 14V)
100 P Stop lamp switch[Ignition switch ON]
Brake pedal: Fully releasedApproximately 0V
[Ignition switch ON]
Brake pedal: DepressedBATTERY VOLTAGE
(11 - 14V)
105 G ECM relay (self-shutoff)[Ignition switch ON]
[Ignition switch OFF]
For a few seconds after turning ignition
switch OFFApproximately 1.2V
[Ignition switch OFF]
More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
107
108W/R
W/RIgnition switch [Ignition switch ON]BATTERY VOLTAGE
(11 - 14V)
110 G/ORPark/Neutral position
switch[Ignition switch ON]
Gear position is Neutral Approximately 0V
[Ignition switch ON]
Except the above gear positionBATTERY VOLTAGE
(11 - 14V)
111 P / BPower steering pressure
switch[Engine is running]
Steering wheel is being turnedApproximately 0V
[Engine is running]
Steering wheel is not being turnedBATTERY VOLTAGE
(11 - 14V)
113 G ECM relay (self-shutoff)[Ignition switch ON]
[Ignition switch OFF]
For a few seconds after turning ignition
switch OFFApproximately 1.2V
[Ignition switch OFF]
More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
114 B ECM ground[Engine is running]
Idle speedApproximately 0V
11 9
120Y
RPower supply for ECM[Ignition switch ON]BATTERY VOLTAGE
(11 - 14V)
121 W/LPower supply for ECM
(Back-up)[Ignition switch OFF]BATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
Page 1304 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual EC-926
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
CONSULT-II FunctionEBS0117G
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
Diagnostic trou NISSAN X-TRAIL 2003 Service Repair Manual EC-926
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
CONSULT-II FunctionEBS0117G
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
Diagnostic trou](/manual-img/5/57404/w960_57404-1303.png)
EC-926
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
CONSULT-II FunctionEBS0117G
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
Diagnostic trouble codes
1st/2nd trip diagnostic trouble codes
Freeze frame data
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
*: This item includes 1st/2nd trip DTCs.Diagnostic test mode Function
Self-diagnostic resultsSelf-diagnostic results such as 1st/2nd trip DTC, DTC and freeze frame data can be read and erased
quickly.*
Data monitor Input/Output data in the ECM can be read.
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.
Active testDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
Function test This mode is used to inform customers when their vehicle condition requires periodic maintenance.
ECM part number ECM part number can be read.
ItemDIAGNOSTIC TEST MODE
SELF-DIAG RESULTS
DATA MON-
ITORACTIVE
TEST
DTC*FREEZE
FRAME
DATA
ENGINE CONTROL COMPONENT PARTS
INPUTCrankshaft position sensor×××
Camshaft position sensor×
Engine coolant temperature sensor××××
Vehicle speed sensor×××
Fuel pump temperature sensor××
Accelerator pedal position sensor 1××
Accelerator pedal position sensor 2××
Fuel rail pressure sensor××
Mass air flow sensor××
Intake air temperature sensor×
Turbocharger boost sensor×××
Battery voltage××
Park/neutral position (PNP) switch×
Power steering pressure switch×
Stop lamp switch×
Barometric pressure sensor (built-into ECM)××
Fuel injector adjustment resistor×
OUTPUTFuel pump×××
Fuel injector×××
Glow relay×××
Cooling fan relay×××
EGR volume control valve×××