NISSAN X-TRAIL 2003 Service Repair Manual

TROUBLE DIAGNOSIS
EC-913
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Engine Control Component Parts LocationEBS0117C
PBIB1888E

EC-914
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

PBIB1938E

TROUBLE DIAGNOSIS
EC-915
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

PBIB1939E

EC-916
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

PBIB1940E

TROUBLE DIAGNOSIS
EC-917
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

Circuit DiagramEBS0117D
TBWA0561E

EC-918
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

TBWA0562E

TROUBLE DIAGNOSIS
EC-919
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

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

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

TROUBLE DIAGNOSIS
EC-921
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

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

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