Nissan Pathfinder (2005 year). Instruction — part 302
CAN SYSTEM (TYPE 3)
LAN-115
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
2005 Pathfinder
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect BCM connector.
2.
Check resistance between BCM harness connector M18 termi-
nals 39 (L) and 40 (P).
OK or NG
OK
>> Replace BCM. Refer to
BCS-19, "Removal and Installa-
.
NG
>> Repair harness between BCM and data link connector.
Combination Meter Circuit Inspection
UKS003FD
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the battery cable from the 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 M24 terminals 12 (L) and 11 (P).
OK or NG
OK
>> Replace combination meter.
NG
>> Repair harness between combination meter and data
link connector.
Driver Seat Control Unit Circuit Inspection
UKS003FE
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 unit side and
harness side).
–
Driver seat control unit connector
–
Harness connector P1
–
Harness connector B37
–
Harness connector B69
–
Harness connector M40
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
39 (L) – 40 (P)
: Approx. 54 – 66
Ω
SKIA6869E
12 (L) – 11 (P)
: Approx. 54 – 66
Ω
PKIA6837E
LAN-116
[CAN]
CAN SYSTEM (TYPE 3)
2005 Pathfinder
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect driver seat control unit connector.
2.
Check resistance between driver seat control unit harness con-
nector P2 terminals 3 (L) and 19 (P).
OK or NG
OK
>> Replace driver seat control unit.
NG
>> Repair harness between driver seat control unit and
data link connector.
ABS Actuator and Electric Unit (Control Unit) Circuit Inspection
UKS003FF
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.
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 E125 terminals 11 (L) and 15 (P).
OK or NG
OK
>> Replace ABS actuator and electric unit (control unit).
NG
>> Repair harness between ABS actuator and electric unit
(control unit) and IPDM E/R.
IPDM E/R Circuit Inspection
UKS003FG
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check terminals and connector of IPDM E/R for damage, bend and loose connection (control module side
and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
3 (L) – 19 (P)
: Approx. 54 – 66
Ω
PKIA6842E
11 (L) – 15 (P)
: Approx. 54 – 66
Ω
SKIA6872E
CAN SYSTEM (TYPE 3)
LAN-117
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
2005 Pathfinder
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect IPDM E/R connector.
2.
Check resistance between IPDM E/R harness connector E122
terminals 39 (L) and 40 (P).
OK or NG
OK
>> Replace IPDM E/R.
NG
>> Repair harness between IPDM E/R and ABS actuator
and electric unit (control unit).
CAN Communication Circuit Inspection
UKS003FH
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, sensor side, meter side, and harness side).
–
ECM
–
TCM
–
Front air control
–
Steering angle sensor
–
BCM
–
Combination meter
–
Driver seat control unit
–
ABS actuator and electric unit (control unit)
–
IPDM E/R
–
Between ECM and IPDM E/R
–
Between ECM and driver seat control unit
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
2.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect following connectors.
–
ECM connector
–
Harness connector E2
2.
Check continuity between ECM harness connector E16 termi-
nals 94 (L) and 86 (P).
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness between ECM and harness connector
E2.
39 (L) – 40 (P)
: Approx. 108 – 132
Ω
PKIA8141E
94 (L) – 86 (P)
: Continuity should not exist.
SKIA6865E
LAN-118
[CAN]
CAN SYSTEM (TYPE 3)
2005 Pathfinder
3.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ECM harness connector E16 terminals 94
(L), 86 (P) and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness between ECM and harness connector
E2.
4.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect following connectors.
–
A/T assembly connector
–
Harness connector F14
2.
Check continuity between A/T assembly harness connector F9
terminals 3 (L) and 8 (P).
OK or NG
OK
>> GO TO 5.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between A/T assembly and harness connec-
tor F32
●
Harness between A/T assembly and harness connec-
tor F14
5.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between A/T assembly harness connector F9 ter-
minals 3 (L), 8 (P) and ground.
OK or NG
OK
>> GO TO 6.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between A/T assembly and harness connec-
tor F32
●
Harness between A/T assembly and harness connector F14
94 (L) – Ground
: Continuity should not exist.
86 (P) – Ground
: Continuity should not exist.
SKIB0571E
3 (L) – 8 (P)
: Continuity should not exist.
SKIA6866E
3 (L) – Ground
: Continuity should not exist.
8 (P) – Ground
: Continuity should not exist.
SKIA6875E
CAN SYSTEM (TYPE 3)
LAN-119
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
2005 Pathfinder
6.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect harness connector E152.
2.
Check continuity between harness connector E5 terminals 2 (L)
and 3 (P).
OK or NG
OK
>> GO TO 7.
NG
>> Repair harness between harness connector E5 and har-
ness connector E152.
7.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector E5 terminals 2 (L), 3
(P) and ground.
OK or NG
OK
>> GO TO 8.
NG
>> Repair harness between harness connector E5 and har-
ness connector E152.
2 (L) – 3 (P)
: Continuity should not exist.
SKIB2816E
2 (L) – Ground
: Continuity should not exist.
3 (P) – Ground
: Continuity should not exist.
SKIB2817E
LAN-120
[CAN]
CAN SYSTEM (TYPE 3)
2005 Pathfinder
8.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect following connectors.
–
Front air control connector
–
Steering angle sensor connector
–
BCM connector
–
Combination meter connector
–
Harness connector M40
–
Harness connector M91
2.
Check continuity between data link connector M22 terminals 6
(L) and 14 (P).
OK or NG
OK
>> GO TO 9.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between data link connector and harness
connector M31
●
Harness between data link connector and front air
control
●
Harness between data link connector and steering angle sensor
●
Harness between data link connector and BCM
●
Harness between data link connector and combination meter
●
Harness between data link connector and harness connector M40
●
Harness between data link connector and harness connector M91
9.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector M22 terminals 6 (L),
14 (P) and ground.
OK or NG
OK
>> GO TO 10.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between data link connector and harness
connector M31
●
Harness between data link connector and front air control
●
Harness between data link connector and steering angle sensor
●
Harness between data link connector and BCM
●
Harness between data link connector and combination meter
●
Harness between data link connector and harness connector M40
●
Harness between data link connector and harness connector M91
6 (L) – 14 (P)
: Continuity should not exist.
SKIA6868E
6 (L) – Ground
: Continuity should not exist.
14 (P) – Ground
: Continuity should not exist.
PKIA9872E
CAN SYSTEM (TYPE 3)
LAN-121
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
2005 Pathfinder
10.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect following connectors.
–
Driver seat control unit connector
–
Harness connector P1
2.
Check continuity between driver seat control unit harness con-
nector P2 terminals 3 (L) and 19 (P).
OK or NG
OK
>> GO TO 11.
NG
>> Repair harness between driver seat control unit and har-
ness connector P1.
11.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between driver seat control unit harness connector
P2 terminals 3 (L), 19 (P) and ground.
OK or NG
OK
>> GO TO 12.
NG
>> Repair harness between driver seat control unit and har-
ness connector P1.
12.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B37 terminals 15 (L)
and 14 (P).
OK or NG
OK
>> GO TO 13.
NG
>> Repair harness between harness connector B37 and
harness connector B69.
13.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B37 terminals 15 (L),
14 (P) and ground.
OK or NG
OK
>> GO TO 14.
NG
>> Repair harness between harness connector B37 and
harness connector B69.
3 (L) – 19 (P)
: Continuity should not exist.
PKIA6842E
3 (L) – Ground
: Continuity should not exist.
19 (P) – Ground
: Continuity should not exist.
SKIB2818E
15 (L) – 14 (P)
: Continuity should not exist.
SKIB2819E
15 (L) – Ground
: Continuity should not exist.
14 (P) – Ground
: Continuity should not exist.
SKIB2820E
LAN-122
[CAN]
CAN SYSTEM (TYPE 3)
2005 Pathfinder
14.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect ABS actuator and electric unit (control unit) connector and IPDM E/R connector.
2.
Check continuity between IPDM E/R harness connector E122
terminals 39 (L) and 40 (P).
OK or NG
OK
>> GO TO 15.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between IPDM E/R and ABS actuator and
electric unit (control unit)
●
Harness between IPDM E/R and harness connector
E26
15.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between IPDM E/R harness connector E122 termi-
nals 39 (L), 40 (P) and ground.
OK or NG
OK
>> GO TO 16.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between IPDM E/R and ABS actuator and
electric unit (control unit)
●
Harness between IPDM E/R and harness connector E26
16.
ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
1.
Remove ECM and IPDM E/R from vehicle.
2.
Check resistance between ECM terminals 94 and 86.
3.
Check resistance between IPDM E/R terminals 39 and 40.
OK or NG
OK
>> GO TO 17.
NG
>> Replace ECM and/or IPDM E/R.
17.
CHECK SYMPTOM
1.
Fill in described symptoms on the column “Symptom” in the check sheet.
2.
Connect all connectors, and then make sure that the symptom is reproduced.
OK or NG
OK
>> GO TO 18.
NG
>> Refer to
LAN-15, "Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
39 (L) – 40 (P)
: Continuity should not exist.
PKIA8141E
39 (L) – Ground
: Continuity should not exist.
40 (P) – Ground
: Continuity should not exist.
SKIB2821E
94 – 86
: Approx. 108 – 132
Ω
39 – 40
: Approx. 108 – 132
Ω
LKIA0037E
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