check INFINITI M35 2006 Factory Service Manual

CAN SYSTEM (TYPE 13)
LAN-643
[CAN]
C
D
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LAN
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering angle sensor connector.
2. Check resistance between steering angle sensor harness con-
nector terminals.
OK or NG
OK >> Replace steering angle sensor.
NG >> Repair harness between steering angle sensor and data
link connector.
Intelligent Key Unit Circuit InspectionNKS0046E
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of Intelligent Key unit for damage, bend and loose connection (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 Intelligent Key unit connector.
2. Check resistance between Intelligent Key unit harness connec-
tor terminals.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair harness between Intelligent Key unit and data
link connector.
Unified Meter and A/C Amp. Circuit InspectionNKS0046F
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of unified meter and A/C amp. for damage, bend and loose connection
(meter side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
Steering angle
sensor connectorTerminalResistance
(Approx.)
M47 4 5 54 – 66
PKIA9864E
Intelligent Key
unit connectorTerminalResistance
(Approx.)
M32 38 37 54 – 66
PKIC0286E

LAN-644
[CAN]
CAN SYSTEM (TYPE 13)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect unified meter and A/C amp. connector.
2. Check resistance between unified meter and A/C amp. harness
connector terminals.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Repair harness between unified meter and A/C amp.
and data link connector.
AV Control Unit Circuit InspectionNKS0046G
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).
–AV control unit connector
–Harness connector M216
–Harness connector M53
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect AV control unit connector.
2. Check resistance between AV control unit harness connector
terminals.
OK or NG
OK >> Replace AV control unit.
NG >> Repair harness between AV control unit and data link
connector.
Data Link Connector Circuit InspectionNKS0046H
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check data link connector and terminals for damage, bend and loose connection (connector side and har-
ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
Unified meter
and A/C amp.
connectorTerminalResistance
(Approx.)
M65 56 72 54 – 66
PKIC0287E
AV control unit
connectorTerminalResistance
(Approx.)
M210 71 72 54 – 66
PKIC0288E

CAN SYSTEM (TYPE 13)
LAN-645
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector terminals.
OK or NG
OK >> Diagnose again. Refer to LAN-9, "TROUBLE DIAG-
NOSES WORK FLOW" .
NG >> Repair harness between data link connector and har-
ness connector M13.
Pre-Crash Seat Belt Control Unit Circuit InspectionNKS0046I
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of pre-crash seat belt 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 pre-crash seat belt control unit connector.
2. Check resistance between pre-crash seat belt control unit har-
ness connector terminals.
OK or NG
OK >> Replace pre-crash seat belt control unit.
NG >> Replace harness.
Driver Seat Control Unit Circuit InspectionNKS0046J
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 B202
–Harness connector B15
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
Data link
connectorTerminalResistance
(Approx.)
M60 6 14 54 – 66
PKIA9865E
Pre-crash seat
belt control unit
connectorTerminalResistance
(Approx.)
B142 24 22 54 – 66
PKIA9863E

LAN-646
[CAN]
CAN SYSTEM (TYPE 13)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check resistance between driver seat control unit harness con-
nector terminals.
OK or NG
OK >> Replace driver seat control unit.
NG >> Replace harness.
ABS Actuator and Electric Unit (Control Unit) Circuit InspectionNKS0046K
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 terminals.
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 InspectionNKS0046L
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.
Driver seat control
unit connectorTerminalResistance
(Approx.)
B204 3 19 54 – 66
PKIA6842E
ABS actuator and
electric unit
(control unit)
connectorTerminalResistance
(Approx.)
E30 35 14 54 – 66
PKIC0289E

CAN SYSTEM (TYPE 13)
LAN-647
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM E/R harness connector termi-
nals.
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness between IPDM E/R and harness con-
nector E105.
CAN Communication Circuit InspectionNKS0046M
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, unit side, sensor side, meter side and harness side).
–ECM
–A/T assembly
–AWD control unit
–AFS control unit
–BCM
–Low tire pressure warning control unit
–Steering angle sensor
–Intelligent Key unit
–Unified meter and A/C amp.
–AV control unit
–Pre-crash seat belt control unit
–Driver seat control unit
–ABS actuator and electric unit (control unit)
–IPDM E/R
–Between ECM and A/T assembly
–Between ECM and AWD control unit
–Between ECM and AFS control unit
–Between ECM and AV control unit
–Between ECM and driver seat control unit
–Between ECM and IPDM E/R
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
IPDM E/R
connectorTerminalResistance
(Approx.)
E9 49 50 108 – 132
PKIC0290E

LAN-648
[CAN]
CAN SYSTEM (TYPE 13)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–ECM connector
–Harness connector M72
–BCM connector
–Harness connector M61
2. Check continuity between ECM harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between ECM and harness connector M72
Harness between ECM and BCM
Harness between ECM and harness connector M61
3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ECM harness connector terminals and
ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between ECM and harness connector M72
Harness between ECM and BCM
Harness between ECM and harness connector M61
4. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect A/T assembly connector.
2. Check continuity between A/T assembly harness connector ter-
minals.
OK or NG
OK >> GO TO 5.
NG >> Repair harness between A/T assembly and harness
connector F102.
ECM connector Terminal Continuity
M71 94 86 No
PKIA9860E
ECM connector Terminal
GroundContinuity
M7194 No
86 No
PKIA9867E
A/T assembly
connectorTerminal Continuity
F42 3 8 No
SKIA6866E

CAN SYSTEM (TYPE 13)
LAN-649
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
5. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between A/T assembly harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness between A/T assembly and harness
connector F102.
6. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect AWD control unit connector.
2. Check continuity between AWD control unit harness connector
terminals.
OK or NG
OK >> GO TO 7.
NG >> Repair harness between AWD control unit and harness
connector F102.
7. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between AWD control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace harness between AWD control unit and har-
ness connector F102.
8. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect AFS control unit connector.
2. Check continuity between AFS control unit harness connector
terminals.
OK or NG
OK >> GO TO 9.
NG >> Repair harness between AFS control unit and harness
connector F102.
A/T assembly
connectorTerminal
GroundContinuity
F423No
8No
SKIA6875E
AWD control unit
connectorTerminal Continuity
F109 8 16 No
SKIA6889E
AWD control unit
connectorTerminal
GroundContinuity
F1098No
16 No
PKIC0305E
AFS control unit
connectorTerminal Continuity
F110 30 7 No
PKIC0297E

LAN-650
[CAN]
CAN SYSTEM (TYPE 13)
Revision: 2006 January2006 M35/M45
9. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between AFS control unit harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 10.
NG >> Replace harness between AFS control unit and harness
connector F102.
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–Low tire pressure warning control unit connector
–Steering angle sensor connector
–Intelligent Key unit connector
–Unified meter and A/C amp. connector
–Harness connector M53
–Harness connector M13
2. Check continuity between data link connector terminals.
OK or NG
OK >> GO TO 11.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between data link connector and harness
connector M62
Harness between data link connector and low tire pressure warning control unit
Harness between data link connector and steering angle sensor
Harness between data link connector and Intelligent Key unit
Harness between data link connector and unified meter and A/C amp.
Harness between data link connector and harness connector M53
Harness between data link connector and harness connector M13
AFS control unit
connectorTerminal
GroundContinuity
F11030 No
7No
PKIC0298E
Data link
connectorTerminal Continuity
M60 6 14 No
PKIA9865E

CAN SYSTEM (TYPE 13)
LAN-651
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2006 January2006 M35/M45
11 . CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector terminals and ground.
OK or NG
OK >> GO TO 12.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between data link connector and harness
connector M62
Harness between data link connector and low tire pressure warning control unit
Harness between data link connector and steering angle sensor
Harness between data link connector and Intelligent Key unit
Harness between data link connector and unified meter and A/C amp.
Harness between data link connector and harness connector M53
Harness between data link connector and harness connector M13
12. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect AV control unit connector.
2. Check continuity between AV control unit harness connector ter-
minals.
OK or NG
OK >> GO TO 13.
NG >> Repair harness between AV control unit and harness
connector M216.
13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between AV control unit harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 14.
NG >> Repair harness between AV control unit and harness
connector M216.
Data link
connectorTerminal
GroundContinuity
M606No
14 No
PKIA9872E
AV control unit
connectorTerminal Continuity
M210 71 72 No
PKIC0288E
AV control unit
connectorTerminal
GroundContinuity
M21071 No
72 No
PKIC0291E

LAN-652
[CAN]
CAN SYSTEM (TYPE 13)
Revision: 2006 January2006 M35/M45
14. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–Pre-crash seat belt control unit connector
–Harness connector B15
–Harness connector B3
2. Check continuity between harness connector terminals.
OK or NG
OK >> GO TO 15.
NG >> Replace harness.
15. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector terminals and ground.
OK or NG
OK >> GO TO 16.
NG >> Replace harness.
16. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit harness con-
nector terminals.
OK or NG
OK >> GO TO 17.
NG >> Repair harness between driver seat control unit and har-
ness connector B202.
Harness connector Terminal Continuity
B15 3 19 No
PKIC0292E
Harness connector Terminal
GroundContinuity
B153No
19 No
PKIC0293E
Driver seat control
unit connectorTerminal Continuity
B204 3 19 No
PKIA6842E