NISSAN X-TRAIL 2003 Service Repair Manual

CAN SYSTEM (TYPE 1)
LAN-13
[CAN]
C
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LAN

CHECK SHEET
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIA9598E

LAN-14
[CAN]
CAN SYSTEM (TYPE 1)

CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1
Check harness between ABS actuator and electric unit (control unit) and 4WD control unit. Refer to LAN-19,
"Between ABS Actuator and Electric Unit (Control Unit) and 4WD Control Unit Circuit Inspection" .
PKIA9599E
PKIA6502E

CAN SYSTEM (TYPE 1)
LAN-15
[CAN]
C
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LAN

Case 2
Check ECM circuit. Refer to LAN-20, "ECM Circuit Inspection" .
PKIA9600E
PKIA6503E

LAN-16
[CAN]
CAN SYSTEM (TYPE 1)

Case 3
Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-21, "ABS Actuator and Electric Unit
(Control Unit) Circuit Inspection" .
PKIA9601E
PKIA6504E

CAN SYSTEM (TYPE 1)
LAN-17
[CAN]
C
D
E
F
G
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MA
B
LAN

Case 4
Check 4WD control unit circuit. Refer to LAN-21, "4WD Control Unit Circuit Inspection" .
PKIA9602E
PKIA6505E

LAN-18
[CAN]
CAN SYSTEM (TYPE 1)

Case 5
Check combination meter circuit. Refer to LAN-22, "Combination Meter Circuit Inspection" .
PKIA9603E
PKIA6506E

CAN SYSTEM (TYPE 1)
LAN-19
[CAN]
C
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B
LAN

Case 6
Check CAN communication circuit. Refer to LAN-22, "CAN Communication Circuit Inspection" .
Between ABS Actuator and Electric Unit (Control Unit) and 4WD Control Unit
Circuit Inspection
EKS00F0E
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (connector side and
harness side).
–Harness connector E116
–Harness connector M75
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector and harness connector E116.
2. Check the following.
–LHD models
 Check continuity between ABS actuator and electric unit (control
unit) harness connector E69 terminals 20 (W), 23 (R) and har-
ness connector E116 terminals 14 (W), 5 (R).
–RHD models
 Check continuity between ABS actuator and electric unit (control
unit) harness connector E69 terminals 20 (W), 23 (R) and har-
ness connector E116 terminals 9 (W), 2 (R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
PKIA9604E
20 (W) – 14 (W) : Continuity should exist.
23 (R) – 5 (R) : Continuity should exist.
SKIA9574E
20 (W) – 9 (W) : Continuity should exist.
23 (R) – 2 (R) : Continuity should exist.
SKIA9575E

LAN-20
[CAN]
CAN SYSTEM (TYPE 1)

3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect 4WD control unit connector.
2. Check the following.
–LHD models
 Check continuity between harness connector M75 terminals 14
(W), 5 (R) and 4WD control unit harness connector M107 termi-
nals 8 (W), 16 (R).
–RHD models
 Check continuity between harness connector M75 terminals 9
(W), 2 (R) and 4WD control unit harness connector M107 termi-
nals 8 (W), 16 (R).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-12, "
Work Flow" .
NG >> Repair harness.
ECM Circuit InspectionEKS00F0F
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side
and harness side).
–ECM connector
–Harness connector M75
–Harness connector E116
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.14 (W) – 8 (W) : Continuity should exist.
5 (R) – 16 (R) : Continuity should exist.
SKIA9576E
9 (W) – 8 (W) : Continuity should exist.
2 (R) – 16 (R) : Continuity should exist.
SKIA9577E

CAN SYSTEM (TYPE 1)
LAN-21
[CAN]
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LAN

2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector M118 termi-
nals 94 (G/R) and 86 (GY/R).
OK or NG
OK >> Replace ECM.
NG >> Repair harness between ECM and ABS actuator and
electric unit (control unit).
ABS Actuator and Electric Unit (Control Unit) Circuit InspectionEKS00F8C
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose
connection (control unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector E69 terminals 20 (W) and 23 (R).
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Repair harness between ABS actuator and electric unit
(control unit) and harness connector E116.
4WD Control Unit Circuit InspectionEKS00FAZ
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check terminals and connector of 4WD control unit for damage, bend and loose connection (control unit
side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.94 (G/R) – 86 (GY/R) : Approx. 108 – 132Ω
PKIA9592E
20 (W) – 23 (R) : Approx. 54 – 66Ω
SKIA9769E

LAN-22
[CAN]
CAN SYSTEM (TYPE 1)

2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect 4WD control unit connector.
2. Check resistance between 4WD control unit harness connector
M107 terminals 8 (W) and 16 (R).
OK or NG
OK >> Replace 4WD control unit.
NG >> Repair harness between 4WD control unit and combina-
tion meter.
Combination Meter Circuit InspectionEKS00FB0
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check terminals and connector of combination meter for damage, bend and loose connection (meter side
and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect combination meter connector.
2. Check resistance between combination meter harness connec-
tor M44 terminals 22 (W) and 23 (R).
OK or NG
OK >> Replace combination meter.
NG >> Repair harness between combination meter and 4WD
control unit.
CAN Communication Circuit InspectionEKS00F0M
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side,
control unit side, meter side, connector side and harness side).
–ECM
–ABS actuator and electric unit (control unit)
–4WD control unit
–Combination meter
–Between ECM and combination meter
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.8 (W) – 16 (R) : Approx. 54 – 66Ω
SKIB0043E
22 (W) – 23 (R) : Approx. 108 – 132Ω
SKIA9780E