NISSAN X-TRAIL 2003 Service Repair Manual

CAN SYSTEM (TYPE 4)
LAN-73
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

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 ESP/TCS/ABS control unit and 4WD control unit. Refer to LAN-79, "Between ESP/
TCS/ABS Control Unit and 4WD Control Unit Circuit Inspection" .
PKIA9615E
PKIA9636E

LAN-74
[CAN]
CAN SYSTEM (TYPE 4)

Case 2
Check ECM circuit. Refer to LAN-80, "ECM Circuit Inspection" .
PKIA9616E
PKIA9637E

CAN SYSTEM (TYPE 4)
LAN-75
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Case 3
Check ESP/TCS/ABS control unit circuit. Refer to LAN-81, "ESP/TCS/ABS Control Unit Circuit Inspection" .
PKIA9617E
PKIA9638E

LAN-76
[CAN]
CAN SYSTEM (TYPE 4)

Case 4
Check steering angle sensor circuit. Refer to LAN-81, "Steering Angle Sensor Circuit Inspection" .
PKIA9619E
PKIA9639E

CAN SYSTEM (TYPE 4)
LAN-77
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Case 5
Check 4WD control unit circuit. Refer to LAN-82, "4WD Control Unit Circuit Inspection" .
PKIA9618E
PKIA9640E

LAN-78
[CAN]
CAN SYSTEM (TYPE 4)

Case 6
Check combination meter circuit. Refer to LAN-82, "Combination Meter Circuit Inspection" .
PKIA9620E
PKIA9641E

CAN SYSTEM (TYPE 4)
LAN-79
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Case 7
Check CAN communication circuit. Refer to LAN-83, "CAN Communication Circuit Inspection" .
Between ESP/TCS/ABS Control Unit and 4WD Control Unit Circuit InspectionEKS00FVJ
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 ESP/TCS/ABS control unit connector and harness connector E116.
2. Check the following.
–LHD models
 Check continuity between ESP/TCS/ABS control unit harness
connector E122 terminals 61 (W), 63 (R) and harness connector
E116 terminals 14 (W), 5 (R).
–RHD models
 Check continuity between ESP/TCS/ABS control unit harness
connector E122 terminals 61 (W), 63 (R) and harness connector
E116 terminals 9 (W), 2 (R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
PKIA9621E
61 (W) – 14 (W) : Continuity should exist.
63 (R) – 5 (R) : Continuity should exist.
SKIB0109E
61 (W) – 9 (W) : Continuity should exist.
63 (R) – 2 (R) : Continuity should exist.
SKIB0110E

LAN-80
[CAN]
CAN SYSTEM (TYPE 4)

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-71, "
Work Flow" .
NG >> Repair harness.
ECM Circuit InspectionEKS00FVK
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 4)
LAN-81
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector M118 termi-
nals 95 (G/R) and 87 (GY/R).
OK or NG
OK >> Replace ECM.
NG >> Repair harness between ECM and ESP/TCS/ABS con-
trol unit.
ESP/TCS/ABS Control Unit Circuit InspectionEKS00FVL
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check terminals and connector of ESP/TCS/ABS 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 ESP/TCS/ABS control unit connector.
2. Check resistance between ESP/TCS/ABS control unit harness
connector E122 terminals 61 (W) and 63 (R).
OK or NG
OK >> Replace ESP/TCS/ABS control unit.
NG >> Repair harness between ESP/TCS/ABS control unit and
harness connector E116.
Steering Angle Sensor Circuit InspectionEKS00FVM
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor
side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.95 (G/R) – 87 (GY/R) : Approx. 108 – 132Ω
SKIB0120E
61 (W) – 63 (R) : Approx. 54 – 66Ω
PKIA9632E

LAN-82
[CAN]
CAN SYSTEM (TYPE 4)

2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering angle sensor connector.
2. Check resistance between steering angle sensor harness con-
nector M81 terminals 4 (W) and 5 (R).
OK or NG
OK >> Replace steering angle sensor.
NG >> Repair harness between steering angle sensor and
4WD control unit.
4WD Control Unit Circuit InspectionEKS00FVN
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.
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 steering
angle sensor.
Combination Meter Circuit InspectionEKS00FVO
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.4 (W) – 5 (R) : Approx. 54 – 66Ω
SKIA6870E
8 (W) – 16 (R) : Approx. 54 – 66Ω
SKIB0043E