2001 NISSAN X-TRAIL diagram

EC-424
[QR25(WITH EURO-OBD)]
DATA LINK CONNECTOR
DATA LINK CONNECTOR
PFP:24814
Wiring DiagramEBS00MBV
TBWA0334E

EC-438
[QR25(WITHOUT EURO-OBD)]
PRECAUTIONS
●Do not depress accelerator pedal when starting.
●Immediately after starting, do not rev up engine unneces-
sarily.
●Do not rev up engine just prior to shutdown.
●When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control units.
–Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–Adjust the antenna and feeder line so that the standing-
wave radio can be kept smaller.
–Be sure to ground the radio to vehicle body.
Wiring Diagrams and Trouble DiagnosisEBS00NDO
When you read Wiring diagrams, refer to the following:
●GI-13, "How to Read Wiring Diagrams"
●PG-2, "POWER SUPPLY ROUTING" for power distribution circuit
When you perform trouble diagnosis, refer to the following:
●GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
●GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident"
SEF709Y
SEF708Y

ENGINE CONTROL SYSTEM
EC-441
[QR25(WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
ENGINE CONTROL SYSTEMPFP:23710
System DiagramEBS00NDR
PBIB1442E

EC-442
[QR25(WITHOUT EURO-OBD)]
ENGINE CONTROL SYSTEM
Vacuum Hose Drawing
EBS00NDS
Refer to EC-441, "System Diagram" for Vacuum Control System.
PBIB1445E

ENGINE CONTROL SYSTEM
EC-447
[QR25(WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Fuel Cut Control (at No Load and High Engine Speed)EBS00NDX
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800
rpm) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed.
Fuel cut will operate until the engine speed reaches 1,500 rpm, then fuel cut is cancelled.
NOTE:
This function is different from deceleration control listed under “Multiport Fuel Injection (MFI) System”, EC-443
.
CAN CommunicationEBS00NLT
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
FOR A/T MODELS
System diagram
Input/output signal chart
T: Transmit R: Receive Sensor Input Signal to ECMECM
functionActuator
Park/neutral position (PNP) switch Neutral position
Fuel cut
controlFuel injectors Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Engine coolant temperature sensor Engine coolant temperature
Crankshaft position sensor (POS) Engine speed
Wheel sensor Vehicle speed
SKIA0884E
Signals ECM TCM
Engine coolant temperature signal T R
Accelerator pedal position signal T R
A/T self-diagnosis signal R T

TROUBLE DIAGNOSIS
EC-477
[QR25(WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Circuit DiagramEBS00NEF
TBWA0323E

POWER SUPPLY CIRCUIT FOR ECM
EC-507
[QR25(WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
POWER SUPPLY CIRCUIT FOR ECMPFP:24110
Wiring DiagramEBS00NER
TBWA0136E

POWER SUPPLY CIRCUIT FOR ECM
EC-509
[QR25(WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
3.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M61, F41
●Fuse block (J/B) connector M1
●10A fuse
●Harness for open or short between ECM and fuse
>> Repair harness or connectors.
4.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals 59, 60, 106, 108 and engine ground.
Refer to Wiring Diagram.
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.
5.CHECK POWER SUPPLY-II
1. Disconnect ECM relay.
2. Check voltage between ECM relay terminals 1, 6 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.Continuity should exist.
PBIB0493E
SEF420X