2004 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2004  Factory Service Manual LAN-42
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
3. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between harness connector M40 terminals 51J
(W), 52J (R) and data link connector M22

Page 2306 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 1)
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Revision: August 20072004 QX56
ECM Circuit CheckUKS0018L
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery

Page 2307 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-44
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
Driver Seat Control Unit Circuit CheckUKS0018N
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery termin

Page 2308 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 1)
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Revision: August 20072004 QX56
Display Control Unit Circuit CheckUKS0018P
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the

Page 2309 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-46
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
Data Link Connector Circuit CheckUKS0018R
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3

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INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 1)
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Revision: August 20072004 QX56
Front Air Control Circuit CheckUKS0018T
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the neg

Page 2311 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-48
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
IPDM E/R Circuit CheckUKS0018V
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check ter

Page 2312 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 1)
LAN-49
[CAN]
C
D
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F
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L
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LAN
Revision: August 20072004 QX56
2. CHECK HARNESS FOR SHORT CIRCUIT
With all module and control unit connectors disconnected, check
continuity