2004 INFINITI QX56 Factory Service Manual

Page 2417 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-154
[CAN]
CAN SYSTEM (TYPE 4)
Revision: August 20072004 QX56
Case 20
Check CAN communication circuit. Refer to LAN-166, "CAN Communication Circuit Check"  .
Case 21
Check IPDM E/R ignition relay c

Page 2418 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 4)
LAN-155
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Case 22 
Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to LAN-166, "IPDM E/R Ign

Page 2419 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-156
[CAN]
CAN SYSTEM (TYPE 4)
Revision: August 20072004 QX56
3. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ICC sensor connector.
2. Check continuity between harness connector E19 terminals 12
(W

Page 2420 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 4)
LAN-157
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Circuit Check Between ICC Unit and Driver Seat Control UnitUKS001PT
1. CHECK CONNECTOR
1. Turn ignition swit

Page 2421 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-158
[CAN]
CAN SYSTEM (TYPE 4)
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 2422 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 4)
LAN-159
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
ECM Circuit CheckUKS001NX
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery

Page 2423 of 3371

INFINITI QX56 2004  Factory Service Manual LAN-160
[CAN]
CAN SYSTEM (TYPE 4)
Revision: August 20072004 QX56
ICC Sensor Circuit CheckUKS001PU
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the negative battery terminal.
3. Check

Page 2424 of 3371

INFINITI QX56 2004  Factory Service Manual CAN SYSTEM (TYPE 4)
LAN-161
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Driver Seat Control Unit Circuit CheckUKS001NZ
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect