2005 INFINITI QX4 Factory Service Manual

Page 2393 of 3419

INFINITI QX4 2005  Factory Service Manual LAN-114
[CAN]
CAN SYSTEM (TYPE 3)
Revision: October 20052005 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 2394 of 3419

INFINITI QX4 2005  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-115
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
Case 18
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-124, "IPDM E/R Ign

Page 2395 of 3419

INFINITI QX4 2005  Factory Service Manual LAN-116
[CAN]
CAN SYSTEM (TYPE 3)
Revision: October 20052005 QX56
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect harness connector E34.
2. Check continuity between harness connector E19 terminals 12

Page 2396 of 3419

INFINITI QX4 2005  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-117
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
3. CHECK HARNESS FOR OPEN CIRCUIT
Check continuity between harness connector M40 terminals 51J (L),
52J (P)

Page 2397 of 3419

INFINITI QX4 2005  Factory Service Manual LAN-118
[CAN]
CAN SYSTEM (TYPE 3)
Revision: October 20052005 QX56
ECM Circuit CheckUKS0019Z
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check follow

Page 2398 of 3419

INFINITI QX4 2005  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-119
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
Driver Seat Control Unit Circuit CheckUKS001A1
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnec

Page 2399 of 3419

INFINITI QX4 2005  Factory Service Manual LAN-120
[CAN]
CAN SYSTEM (TYPE 3)
Revision: October 20052005 QX56
Display Control Unit Circuit CheckUKS001A3
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal

Page 2400 of 3419

INFINITI QX4 2005  Factory Service Manual CAN SYSTEM (TYPE 3)
LAN-121
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
Data Link Connector Circuit CheckUKS001A5
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the