2004 INFINITI QX56 Factory Service Manual

Page 2377 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-114
[CAN]
CAN SYSTEM (TYPE 3)
Revision: August 20072004 QX56
Case 16
Check CAN communication circuit. Refer to LAN-124, "CAN Communication Circuit Check"  .
Case 17
Check IPDM E/R ignition relay c

Page 2378 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-115
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Case 18
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-124, "IPDM E/R Igni

Page 2379 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-116
[CAN]
CAN SYSTEM (TYPE 3)
Revision: August 20072004 QX56
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector E34.
2. Check continuity between harness connector E19 terminals 12
(

Page 2380 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-117
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
3. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between harness connector M40 terminals 51J
(W), 52J (R)

Page 2381 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-118
[CAN]
CAN SYSTEM (TYPE 3)
Revision: August 20072004 QX56
ECM Circuit CheckUKS0019Z
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check followi

Page 2382 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-119
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Driver Seat Control Unit Circuit CheckUKS001A1
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect

Page 2383 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-120
[CAN]
CAN SYSTEM (TYPE 3)
Revision: August 20072004 QX56
Display Control Unit Circuit CheckUKS001A3
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.

Page 2384 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-121
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Data Link Connector Circuit CheckUKS001A5
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the