2010 INFINITI QX56 Factory Service Manual

Page 417 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
DIAGNOSIS SYSTEM (BCM)BCS-31
< FUNCTION DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
ACTIVE TEST
PANIC ALARM
PANIC ALARM : CONSULT-III Function (BCM - PANIC ALARM)INFOID:0000000005370265
ACTIVE

Page 418 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-32
< COMPONENT DIAGNOSIS >[BCM]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000005146415
Refer to 
LAN-44, "CAN Communication Signal Chart".
DTC LogicIN

Page 419 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
POWER SUPPLY AND GROUND CIRCUITBCS-33
< COMPONENT DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000005146421
Regarding Wiring Diagra

Page 420 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-34
< COMPONENT DIAGNOSIS >[BCM]
POWER SUPPLY AND GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair or replace har

Page 421 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
COMBINATION SWITCH INPUT CIRCUITBCS-35
< COMPONENT DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
COMBINATION SWITCH
 INPUT CIRCUIT
Diagnosis ProcedureINFOID:0000000005146422
Regarding Wiring Dia

Page 422 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-36
< COMPONENT DIAGNOSIS >[BCM]
COMBINATION SWITCH INPUT CIRCUIT
Is the measurement value normal?
YES >> GO TO 4
NO >> Replace BCM. Refer to 
BCS-59, "
Removal and Installation".
4. CHECK COMBINAT

Page 423 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
COMBINATION SWITCH OUTPUT CIRCUITBCS-37
< COMPONENT DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
COMBINATION SWITCH
 OUTPUT CIRCUIT
Diagnosis ProcedureINFOID:0000000005146424
Regarding Wiring D

Page 424 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-38
< COMPONENT DIAGNOSIS >[BCM]
COMBINATION SWITCH
COMBINATION SWITCH
DescriptionINFOID:0000000005146426
COMBINATION SWITCH MATRIX
Combination switch consists of INPUT circuit and OUTPUT circuit.