Page 3749 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-80
[CAN]
CAN SYSTEM (TYPE 1)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check resistance between driver seat cont INFINITI M35 2006 Factory Service Manual LAN-80
[CAN]
CAN SYSTEM (TYPE 1)
Revision: 2006 January2006 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check resistance between driver seat cont](/manual-img/42/57023/w960_57023-3748.png)
LAN-80
[CAN]
CAN SYSTEM (TYPE 1)
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 >> Repair harness between driver seat control unit and har-
ness connector B3.
ABS Actuator and Electric Unit (Control Unit) Circuit InspectionNKS003YE
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 InspectionNKS003YF
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
Page 3750 of 5621
![INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 1)
LAN-81
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 1)
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM](/manual-img/42/57023/w960_57023-3749.png)
CAN SYSTEM (TYPE 1)
LAN-81
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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 InspectionNKS003YG
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
–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 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
Page 3756 of 5621
![INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 1)
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16. CHECK ECM AND IPDM E/R INTERNAL CIRCUIT
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 1)
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16. CHECK ECM AND IPDM E/R INTERNAL CIRCUIT
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance](/manual-img/42/57023/w960_57023-3755.png)
CAN SYSTEM (TYPE 1)
LAN-87
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16. 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 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-18, "
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
18. 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
–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.
TerminalResistance
(Approx.)
94 86 108 – 132
TerminalResistance
(Approx.)
49 50 108 – 132
LKIA0037E
Page 3782 of 5621
CAN SYSTEM (TYPE 2)
LAN-113
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Case 18
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-129, "IPDM E/R Ignition Relay
Circuit Inspection" .
Inspection Between TCM and Data Link Connector CircuitNKS003YM
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 (connector side and
harness side).
–Harness connector M61
–Harness connector M62
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector M72 and harness connector M61.
2. Check continuity between harness connector (A) and harness
connector (B).
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
PKIB8398E
AB
Continuity
Connector Terminal Connector Terminal
M7243H
M61 1 Yes
42H 2 Yes
PKIC0279E
Page 3783 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-114
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 January2006 M35/M45
3. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between harness connector (A) and data link con-
nector (B).
OK or NG
O INFINITI M35 2006 Factory Service Manual LAN-114
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 January2006 M35/M45
3. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between harness connector (A) and data link con-
nector (B).
OK or NG
O](/manual-img/42/57023/w960_57023-3782.png)
LAN-114
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 January2006 M35/M45
3. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between harness connector (A) and data link con-
nector (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 Data Link Connector and Driver Seat Control Unit CircuitNKS003YN
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 (connector side and
harness side).
–Harness connector M13
–Harness connector B2
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector M13.
2. Check continuity between data link connector (A) and harness
connector (B).
OK or NG
OK >> GO TO 3.
NG >> Repair harness.
AB
Continuity
Connector Terminal Connector Terminal
M621
M606 Yes
214Yes
PKIC0280E
AB
Continuity
Connector Terminal Connector Terminal
M606
M1320M Yes
14 21M Yes
PKIC0281E
Page 3784 of 5621
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3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B15.
2. Check continuity between ha INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 2)
LAN-115
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3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B15.
2. Check continuity between ha](/manual-img/42/57023/w960_57023-3783.png)
CAN SYSTEM (TYPE 2)
LAN-115
[CAN]
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3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector B15.
2. Check continuity between harness connector (A) and 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 Driver Seat Control Unit and ABS Actuator and Electric Unit
(Control Unit) Circuit
NKS003YO
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 (connector side and
harness side).
–Harness connector B3
–Harness connector E105
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
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 >> Repair harness.
AB
Continuity
Connector Terminal Connector Terminal
B220M
B153 Yes
21M 19 Yes
PKIC0282E
AB
Continuity
Connector Terminal Connector Terminal
B153
B3 9Yes
19 8 Yes
PKIC0283E
Page 3785 of 5621
![INFINITI M35 2006 Factory Service Manual LAN-116
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 January2006 M35/M45
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity betwee INFINITI M35 2006 Factory Service Manual LAN-116
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 January2006 M35/M45
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check continuity betwee](/manual-img/42/57023/w960_57023-3784.png)
LAN-116
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 January2006 M35/M45
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.
ECM Circuit InspectionNKS003YP
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of ECM for damage, bend and loose connection (control module side and
harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check resistance between ECM harness connector terminals.
OK or NG
OK >> Replace ECM.
NG >> Repair harness between ECM and A/T assembly.
TCM Circuit InspectionNKS003YQ
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
and harness side).
–A/T assembly connector
–Harness connector F102
–Harness connector M72
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
AB
Continuity
Connector Terminal Connector Terminal
E1059
E30 35 Yes
814Yes
PKIC0284E
ECM connector TerminalResistance
(Approx.)
M71 94 86 108 – 132
PKIA9860E
Page 3786 of 5621
![INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 2)
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector.
2. Check resistance between A/T INFINITI M35 2006 Factory Service Manual CAN SYSTEM (TYPE 2)
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector.
2. Check resistance between A/T](/manual-img/42/57023/w960_57023-3785.png)
CAN SYSTEM (TYPE 2)
LAN-117
[CAN]
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect A/T assembly connector.
2. Check resistance between A/T assembly harness connector ter-
minals.
OK or NG
OK >> Replace control valve with TCM.
NG >> Repair harness between A/T assembly and BCM.
BCM Circuit InspectionNKS003YR
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and
harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check resistance between BCM harness connector terminals.
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installa-
tion of BCM" .
NG >> Repair harness between BCM and harness connector
M61.
Low Tire Pressure Warning Control Unit Circuit InspectionNKS003YS
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of low tire pressure warning control unit for damage, bend and loose con-
nection (control unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
A/T assembly
connectorTerminalResistance
(Approx.)
F42 3 8 54 – 66
SKIA6866E
BCM connector TerminalResistance
(Approx.)
M1 39 40 54 – 66
SKIA6869E