check INFINITI M35 2006 Factory Service Manual

CAN SYSTEM (TYPE 7)
LAN-357
[CAN]
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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.
RAS Control Unit Circuit InspectionNKS0042C
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of RAS 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 RAS control unit connector.
2. Check resistance between RAS control unit harness connector
terminals.
OK or NG
OK >> Replace RAS control unit.
NG >> Replace harness.
Driver Seat Control Unit Circuit InspectionNKS0042D
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
RAS control unit
connectorTerminalResistance
(Approx.)
B127 1 8 54 – 66
PKIC0303E

LAN-358
[CAN]
CAN SYSTEM (TYPE 7)
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 InspectionNKS0042E
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 InspectionNKS0042F
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 7)
LAN-359
[CAN]
C
D
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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 InspectionNKS0042G
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
–AFS control unit
–BCM
–Low tire pressure warning control unit
–Steering angle sensor
–Intelligent Key unit
–Unified meter and A/C amp.
–NAVI control unit
–RAS 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 AFS control unit
–Between ECM and NAVI 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-360
[CAN]
CAN SYSTEM (TYPE 7)
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 7)
LAN-361
[CAN]
C
D
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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 AFS control unit connector.
2. Check continuity between AFS control unit harness connector
terminals.
OK or NG
OK >> GO TO 7.
NG >> Repair harness between AFS control unit and harness
connector F102.
7. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between AFS control unit harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace harness between AFS control unit and harness
connector F102.
A/T assembly
connectorTerminal
GroundContinuity
F423No
8No
SKIA6875E
AFS control unit
connectorTerminal Continuity
F110 30 7 No
PKIC0297E
AFS control unit
connectorTerminal
GroundContinuity
F11030 No
7No
PKIC0298E

LAN-362
[CAN]
CAN SYSTEM (TYPE 7)
Revision: 2006 January2006 M35/M45
8. 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 9.
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
9. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector terminals 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 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
Data link
connectorTerminal Continuity
M60 6 14 No
PKIA9865E
Data link
connectorTerminal
GroundContinuity
M606No
14 No
PKIA9872E

CAN SYSTEM (TYPE 7)
LAN-363
[CAN]
C
D
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F
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MA
B
LAN
Revision: 2006 January2006 M35/M45
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect NAVI control unit connector.
2. Check continuity between NAVI control unit harness connector
terminals.
OK or NG
OK >> GO TO 11.
NG >> Repair harness between NAVI control unit and harness
connector M216.
11 . CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between NAVI control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 12.
NG >> Repair harness between NAVI control unit and harness
connector M216.
12. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–RAS control unit connector
–Harness connector B15
–Harness connector B3
2. Check continuity between harness connector terminals.
OK or NG
OK >> GO TO 13.
NG >> Replace harness.
NAVI control unit
connectorTerminal Continuity
M210 71 72 No
PKIC0288E
NAVI control unit
connectorTerminal
GroundContinuity
M21071 No
72 No
PKIC0291E
Harness connector Terminal Continuity
B15 3 19 No
PKIC0292E

LAN-364
[CAN]
CAN SYSTEM (TYPE 7)
Revision: 2006 January2006 M35/M45
13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector terminals and ground.
OK or NG
OK >> GO TO 14.
NG >> Replace harness.
14. 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 15.
NG >> Repair harness between driver seat control unit and har-
ness connector B202.
15. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between driver seat control unit harness connector
terminals and ground.
OK or NG
OK >> GO TO 16.
NG >> Repair harness between driver seat control unit and har-
ness connector B202.
Harness connector Terminal
GroundContinuity
B153No
19 No
PKIC0293E
Driver seat control
unit connectorTerminal Continuity
B204 3 19 No
PKIA6842E
Driver seat control
unit connectorTerminal
GroundContinuity
B2043No
19 No
SKIA5025E

CAN SYSTEM (TYPE 7)
LAN-365
[CAN]
C
D
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F
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L
MA
B
LAN
Revision: 2006 January2006 M35/M45
16. 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 termi-
nals.
OK or NG
OK >> GO TO 17.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between IPDM E/R and harness connector
E105
Harness between IPDM E/R and ABS actuator and electric unit (control unit)
17. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between IPDM E/R harness connector terminals
and ground.
OK or NG
OK >> GO TO 18.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between IPDM E/R and harness connector E105
Harness between IPDM E/R and ABS actuator and electric unit (control unit)
18. CHECK ECM AND IPDM E/R INTERNAL CIRCUIT
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance between ECM terminals.
3. Check resistance between IPDM E/R terminals.
OK or NG
OK >> GO TO 19.
NG >> Replace ECM and/or IPDM E/R.
IPDM E/R
connectorTerminal Continuity
E9 49 50 No
PKIC0290E
IPDM E/R
connectorTerminal
GroundContinuity
E949 No
50 No
PKIC0294E
TerminalResistance
(Approx.)
94 86 108 – 132
TerminalResistance
(Approx.)
49 50 108 – 132
LKIA0037E

LAN-366
[CAN]
CAN SYSTEM (TYPE 7)
Revision: 2006 January2006 M35/M45
19. 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 20.
NG >> Refer to LAN-18, "
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
20. CHECK UNIT REPRODUCIBILITY
Performs the following procedure for each unit, and then perform reproducibility test.
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the unit connector.
4. Connect the battery cable to the negative terminal.
5. Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced. (Do not confuse it
with the symptom related to removed unit.)
6. Make sure that the same symptom is reproduced.
–A/T assembly
–AFS control unit
–BCM
–Low tire pressure warning control unit
–Steering angle sensor
–Intelligent Key unit
–Unified meter and A/C amp.
–NAVI control unit
–RAS control unit
–Driver seat control unit
–ABS actuator and electric unit (control unit)
–ECM
–IPDM E/R
Check results
Reproduce>>Install removed unit, and then check the other unit.
Not reproduced>>Replace removed unit.
IPDM E/R Ignition Relay Circuit InspectionNKS0042H
Check the following. If no malfunction is found, replace the IPDM E/R.
IPDM E/R power supply circuit. Refer to PG-30, "Check IPDM E/R Power Supply and Ground Circuit" .
Ignition power supply circuit. Refer to PG-12, "IGNITION POWER SUPPLY — IGNITION SW. IN “ON”
AND/OR “START”" .