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![INFINITI M35 2006 Factory Service Manual LAN-556
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
CAN Communication Circuit InspectionNKS0045B
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from INFINITI M35 2006 Factory Service Manual LAN-556
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
CAN Communication Circuit InspectionNKS0045B
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from](/manual-img/42/57023/w960_57023-4224.png)
LAN-556
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
CAN Communication Circuit InspectionNKS0045B
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
–BCM
–Low tire pressure warning control unit
–Steering angle sensor
–Intelligent Key unit
–Unified meter and A/C amp.
–AV 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 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.
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
ECM connector Terminal Continuity
M71 94 86 No
PKIA9860E
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LAN-557
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3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ECM harness connector terminals and
INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 11)
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3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ECM harness connector terminals and](/manual-img/42/57023/w960_57023-4225.png)
CAN SYSTEM (TYPE 11)
LAN-557
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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.
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.
ECM connector Terminal
GroundContinuity
M7194 No
86 No
PKIA9867E
A/T assembly
connectorTerminal Continuity
F42 3 8 No
SKIA6866E
A/T assembly
connectorTerminal
GroundContinuity
F423No
8No
SKIA6875E
Page 4227 of 5621
LAN-558
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
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.
AWD control unit
connectorTerminal Continuity
F109 8 16 No
SKIA6889E
AWD control unit
connectorTerminal
GroundContinuity
F1098No
16 No
PKIC0305E
Page 4228 of 5621
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8. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–Low tire pressure warning con INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 11)
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8. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–Low tire pressure warning con](/manual-img/42/57023/w960_57023-4227.png)
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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
Page 4229 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-560
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect AV control unit connector.
2. Check continuity between AV control unit harness c INFINITI M35 2006 Factory Service Manual LAN-560
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
10. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect AV control unit connector.
2. Check continuity between AV control unit harness c](/manual-img/42/57023/w960_57023-4228.png)
LAN-560
[CAN]
CAN SYSTEM (TYPE 11)
Revision: 2006 January2006 M35/M45
10. 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 11.
NG >> Repair harness between AV control unit and harness
connector M216.
11 . CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between AV control unit harness connector termi-
nals and ground.
OK or NG
OK >> GO TO 12.
NG >> Repair harness between AV control unit and harness
connector M216.
12. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect harness connector B15 and harness connector B3.
2. Check continuity between harness connector terminals.
OK or NG
OK >> GO TO 13.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between harness connector B15 and har-
ness connector B2
Harness between harness connector B15 and har-
ness connector B3
AV control unit
connectorTerminal Continuity
M210 71 72 No
PKIC0288E
AV control unit
connectorTerminal
GroundContinuity
M21071 No
72 No
PKIC0291E
Harness connector Terminal Continuity
B15 3 19 No
PKIC0292E
Page 4230 of 5621
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13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector terminals and ground.
OK INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 11)
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13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector terminals and ground.
OK](/manual-img/42/57023/w960_57023-4229.png)
CAN SYSTEM (TYPE 11)
LAN-561
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13. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector terminals and ground.
OK or NG
OK >> GO TO 14.
NG >> Check the following harnesses. If any harness is dam-
aged, repair the harness.
Harness between harness connector B15 and har-
ness connector B2
Harness between harness connector B15 and harness connector B3
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
Page 4231 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-562
[CAN]
CAN SYSTEM (TYPE 11)
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.
INFINITI M35 2006 Factory Service Manual LAN-562
[CAN]
CAN SYSTEM (TYPE 11)
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.](/manual-img/42/57023/w960_57023-4230.png)
LAN-562
[CAN]
CAN SYSTEM (TYPE 11)
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
Page 4232 of 5621
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19. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Conn INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 11)
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19. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Conn](/manual-img/42/57023/w960_57023-4231.png)
CAN SYSTEM (TYPE 11)
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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
–AWD control unit
–BCM
–Low tire pressure warning control unit
–Steering angle sensor
–Intelligent Key unit
–Unified meter and A/C amp.
–AV 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 InspectionNKS0045C
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”" .