NISSAN X-TRAIL 2005 Service Repair Manual

CAN SYSTEM (TYPE 7)
LAN-137
[CAN]
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Case 3
Check combination meter circuit. Refer to LAN-139, "Combination Meter Circuit Inspection" .
Case 4
Check CAN communication circuit. Refer to LAN-140, "CAN Communication Circuit Inspection" .
PKIC0314E
PKIA7563E
PKIC0315E

LAN-138
[CAN]
CAN SYSTEM (TYPE 7)

ECM Circuit InspectionEKS00NL3
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side
and harness side).
–LHD models
 ECM connector
 Harness connector M75
 Harness connector E116
–RHD models
 ECM connector
 Harness connector M94
 Harness connector E125
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
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 InspectionEKS00NL4
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the 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.94 (G/R) - 86 (GY/R) : Approx. 108 - 132 Ω
PKIA9592E

CAN SYSTEM (TYPE 7)
LAN-139
[CAN]
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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 >>

LHD models
–Repair harness between ABS actuator and electric
unit (control unit) and harness connector E116.

RHD models
–Repair harness between ABS actuator and electric
unit (control unit) and harness connector E125.
Combination Meter Circuit InspectionEKS00NL5
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (meter side and har-
ness side).
–LHD models
 Combination meter connector
 Harness connector M75
 Harness connector E116
–RHD models
 Combination meter connector
 Harness connector M94
 Harness connector E125
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 ABS
actuator and electric unit (control unit). 20 (W) - 23 (R) : Approx. 54 - 66 Ω
SKIA9769E
22 (W) - 23 (R) : Approx. 108 - 132 Ω
SKIA9780E

LAN-140
[CAN]
CAN SYSTEM (TYPE 7)

CAN Communication Circuit InspectionEKS00NL6
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the 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)
–Combination meter
–Between ECM and combination meter
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR SHORT CIRCUIT
LHD models
1. Disconnect ECM connector and harness connector M75.
2. Check continuity between ECM harness connector M118 termi-
nals 94 (G/R) and 86 (GY/R).
RHD models
1. Disconnect ECM connector and harness connector M94.
2. Check continuity between ECM harness connector M118 termi-
nals 94 (G/R) and 86 (GY/R).
OK or NG
OK >> GO TO 3.
NG >>

LHD models
–Repair harness between ECM and harness connector
M75.

RHD models
–Repair harness between ECM and harness connector
M94. 94 (G/R) - 86 (GY/R) : Continuity should not exist.
PKIA9592E
94 (G/R) - 86 (GY/R) : Continuity should not exist.
PKIA9592E

CAN SYSTEM (TYPE 7)
LAN-141
[CAN]
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3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ECM harness connector M118 terminals
94 (G/R), 86 (GY/R) and ground.
OK or NG
OK >> GO TO 4.
NG >>

LHD models
–Repair harness between ECM and harness connector
M75.

RHD models
–Repair harness between ECM and harness connector M94.
4. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between ABS actuator and electric unit (control
unit) harness connector E69 terminals 20 (W) and 23 (R).
OK or NG
OK >> GO TO 5.
NG >>

LHD models
–Repair harness between ABS actuator and electric
unit (control unit) and harness connector E116.

RHD models
–Repair harness between ABS actuator and electric
unit (control unit) and harness connector E125.
5. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector E69 terminals 20 (W), 23 (R) and ground.
OK or NG
OK >> GO TO 6.
NG >>

LHD models
–Repair harness between ABS actuator and electric
unit (control unit) and harness connector E116.

RHD models
–Repair harness between ABS actuator and electric unit (control unit) and harness connector
E125. 94 (G/R) - Ground : Continuity should not exist.
86 (GY/R) - Ground : Continuity should not exist.
PKIA9593E
20 (W) - 23 (R) : Continuity should not exist.
SKIA9769E
20 (W) - Ground : Continuity should not exist.
23 (R) - Ground : Continuity should not exist.
SKIA9778E

LAN-142
[CAN]
CAN SYSTEM (TYPE 7)

6. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect combination meter connector.
2. Check continuity between combination meter harness connector
M44 terminals 22 (W) and 23 (R).
OK or NG
OK >> GO TO 7.
NG >>

LHD models
–Repair harness between combination meter and har-
ness connector M75.

RHD models
–Repair harness between combination meter and har-
ness connector M94.
7. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between combination meter harness connector
M44 terminals 22 (W), 23 (R) and ground.
OK or NG
OK >> GO TO 8.
NG >>

LHD models
–Repair harness between combination meter and har-
ness connector M75.

RHD models
–Repair harness between combination meter and harness connector M94.
8. CHECK ECM AND COMBINATION METER INTERNAL CIRCUIT
Check components inspection. Refer to LAN-142, "
CHECK ECM AND COMBINATION METER INTERNAL
CIRCUIT" .
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to LAN-133, "Work Flow" .
NG >> Replace ECM and/or combination meter.
Component InspectionEKS00NL7
CHECK ECM AND COMBINATION METER INTERNAL CIRCUIT

Remove ECM and combination meter from vehicle.

Check resistance between ECM terminals 94 and 86.

Check resistance between combination meter terminals 22 and
23.22 (W) - 23 (R) : Continuity should not exist.
SKIA9780E
22 (W) - Ground : Continuity should not exist.
23 (R) - Ground : Continuity should not exist.
SKIA9980E
Unit TerminalResistance (Ω)
(Approx.)
ECM 94 - 86
108 - 132
Combination meter 22 - 23
PKIA0830E

CAN SYSTEM (TYPE 8)
LAN-143
[CAN]
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CAN SYSTEM (TYPE 8)PFP:23710
System DescriptionEKS00NHR
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.
Component Parts and Harness Connector LocationEKS00NHS
SKIB0327E

LAN-144
[CAN]
CAN SYSTEM (TYPE 8)

Wiring Diagram — CAN —EKS00NHT
TKWB1886E

CAN SYSTEM (TYPE 8)
LAN-145
[CAN]
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TKWB1887E

LAN-146
[CAN]
CAN SYSTEM (TYPE 8)

Work FlowEKS00NHU
1. Print all the data of “SELF-DIAG RESULTS” for “ENGINE” and “ABS” displayed on CONSULT-II.
2. Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE” and “ABS” displayed on CONSULT-II.
3. Attach the printed sheet of “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT MNTR” onto the check
sheet. Refer to LAN-147, "
CHECK SHEET" .
4. Based on the results of “CAN DIAG SUPPORT MNTR”, put a check marks onto the items with “NG” or
“UNKWN” in the check sheet table. Refer to LAN-147, "
CHECK SHEET" .
NOTE:

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

The “CAN DIAG SUPPORT MNTR” items, which are not in check sheet table, are not related to diag-
nostic procedure on service manual.
So it is not necessary to check the status of the “CAN DIAG SUPPORT MNTR” items not in check
sheet table.
5. According to the check sheet results (example), start inspection. Refer to LAN-148, "
CHECK SHEET
RESULTS (EXAMPLE)" .
PKIA8260E
PKIA8343E