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![INFINITI M35 2006 Factory Service Manual LAN-216
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2006 January2006 M35/M45
CAN Communication Circuit InspectionNKS0040D
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from t INFINITI M35 2006 Factory Service Manual LAN-216
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2006 January2006 M35/M45
CAN Communication Circuit InspectionNKS0040D
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from t](/manual-img/42/57023/w960_57023-3884.png)
LAN-216
[CAN]
CAN SYSTEM (TYPE 4)
Revision: 2006 January2006 M35/M45
CAN Communication Circuit InspectionNKS0040D
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
–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 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.
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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![INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 4)
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Revision: 2006 January2006 M35/M45
8. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–Low tire pressure warning cont INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 4)
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8. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect following connectors.
–Low tire pressure warning cont](/manual-img/42/57023/w960_57023-3887.png)
CAN SYSTEM (TYPE 4)
LAN-219
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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
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![INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 4)
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19. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Conne INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 4)
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19. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Conne](/manual-img/42/57023/w960_57023-3891.png)
CAN SYSTEM (TYPE 4)
LAN-223
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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
–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
–Pre-crash seat belt 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 InspectionNKS0040E
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”" .
Page 3906 of 5621
CAN SYSTEM (TYPE 5)
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Revision: 2006 January2006 M35/M45
Case 5
Check harness between ABS actuator and electric unit (control unit) and ICC sensor integrated unit. Refer to
LAN-258, "
Inspection Between ABS Actuator and Electric Unit and ICC Sensor Integrated Unit Circuit" .
PKIB8426E
SKIB4167E
Page 3913 of 5621
LAN-244
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
Case 12
Check steering angle sensor circuit. Refer to LAN-262, "Steering Angle Sensor Circuit Inspection" .
PKIB8433E
SKIB4174E
Page 3921 of 5621
LAN-252
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
Case 20
Check ICC sensor integrated unit circuit. Refer to LAN-266, "ICC Sensor Integrated Unit Circuit Inspection" .
PKIB8441E
SKIB4182E
Page 3927 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-258
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B15 and harness connector B3.
2. Check continuity between harn INFINITI M35 2006 Factory Service Manual LAN-258
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B15 and harness connector B3.
2. Check continuity between harn](/manual-img/42/57023/w960_57023-3926.png)
LAN-258
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B15 and harness connector B3.
2. Check continuity between harness connector (A) and harness
connector (B).
OK or NG
OK >> GO TO 3.
NG >> Replace harness.
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity between harness connector (A) and ABS actu-
ator and electric unit (control unit) harness connector (B).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-9, "
TROUBLE DIAGNOSES WORK FLOW" .
NG >> Repair harness.
Inspection Between ABS Actuator and Electric Unit and ICC Sensor Integrated
Unit Circuit
NKS0040N
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect following connectors.
–ECM connector
–ABS actuator and electric unit (control unit) connector
–ICC sensor integrated unit connector
4. Check continuity between ABS actuator and electric unit (control
unit) harness connector (A) and ICC sensor integrated unit har-
ness connector (B).
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to
LAN-9, "
TROUBLE DIAGNOSES WORK FLOW" .
NG >> Repair harness.
AB
Continuity
Connector Terminal Connector Terminal
B153
B3 9Yes
19 8 Yes
PKIC0283E
AB
Continuity
Connector Terminal Connector Terminal
E1059
E30 35 Yes
814Yes
PKIC0284E
AB
Continuity
Connector Terminal Connector Terminal
E3035
E613 Yes
14 6 Yes
PKIC0299E
Page 3931 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-262
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
Steering Angle Sensor Circuit InspectionNKS0040U
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable fr INFINITI M35 2006 Factory Service Manual LAN-262
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
Steering Angle Sensor Circuit InspectionNKS0040U
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable fr](/manual-img/42/57023/w960_57023-3930.png)
LAN-262
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 January2006 M35/M45
Steering Angle Sensor Circuit InspectionNKS0040U
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor
side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
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 InspectionNKS0040V
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.
Steering angle
sensor connectorTerminalResistance
(Approx.)
M47 4 5 54 – 66
PKIA9864E
Intelligent Key
unit connectorTerminalResistance
(Approx.)
M32 38 37 54 – 66
PKIC0286E