2001 NISSAN X-TRAIL diagram

DATA LINK CONNECTOR
EC-1385
[QR20(WITHOUT EURO-OBD)]
C
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F
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MA
EC
DATA LINK CONNECTORPFP:24814
Wiring DiagramEBS00NAV
TBWA0097E

PRECAUTIONS
EC-1397
[YD]
C
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EC
–Be sure to ground the radio to vehicle body.
Wiring Diagrams and Trouble DiagnosisEBS00318
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".

EC-1398
[YD]
ENGINE CONTROL SYSTEM
ENGINE CONTROL SYSTEM
PFP:23710
System DiagramEBS0037A
PBIB1410E

ENGINE CONTROL SYSTEM
EC-1403
[YD]
C
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F
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EC
FOR M/T MODELS WITH ESP
System diagram
Input/output signal chart
T: Transmit R: Receive
SKIA0885E
Signals ECMSteering wheel
angle sensor4WD control unitESP/ TCS / ABS
control unit
Engine speed signal T R R
Accelerator pedal position signal T R
ESP operation signal R R T
TCS operation signal R R T
ABS operation signal R R T
Stop lamp switch signalRT
Steering wheel angle sensor signal T R
ESP-OFF switch signalRT
Wheel speed sensor signalRT
4WD mode signalTR

TROUBLE DIAGNOSIS
EC-1423
[YD]
C
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EC
Circuit DiagramEBS0037G
TBWA0335E

POWER SUPPLY CIRCUIT FOR ECM
EC-1443
[YD]
C
D
E
F
G
H
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K
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MA
EC
Wiring DiagramEBS0036A
TBWA0101E

EC-1446
[YD]
POWER SUPPLY CIRCUIT FOR ECM
8. CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals D24, D26 and ECM relay terminal 2. Refer to Wiring
Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK ECM POWER SUPPLY CIRCUIT-IV
1. Check harness continuity between ECM terminals A8, A9 and ECM relay terminal 7. Refer to Wiring Dia-
gram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK ECM RELAY
Refer to EC-1447, "
Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> Replace ECM relay.
11 . CHECK ECM POWER SUPPLY CIRCUIT-V
1. Turn ignition switch “OFF”.
2. Check voltage between ECM terminal A31 and ground.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E65, F6
●20A fuse
●Harness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.
Continuity should exist.
Voltage: Battery voltage
PBIB0478E

DTC U1000 CAN COMMUNICATION LINE
EC-1449
[YD]
C
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F
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MA
EC
Wiring DiagramEBS00LUH
TBWA0336E