2010 INFINITI QX56 Factory Service Manual

Page 425 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
COMBINATION SWITCHBCS-39
< COMPONENT DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
NO >> GO TO 3
3. CHECK SWITCH BASE
 (SPIRAL CABLE)
Check operation with normal switch base (spiral cable) insta

Page 426 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-40
< ECU DIAGNOSIS >[BCM]
BCM (BODY CONTROL MODULE)
ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000005146428
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition Value/Status

Page 427 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
BCM (BODY CONTROL MODULE)BCS-41
< ECU DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
LIGHT SW 1ST
Lighting switch OFF OFF
Lighting switch 1st
ON
HEAD LAMP SW1 Headlamp switch OFF
OFF
Headlamp swi

Page 428 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-42
< ECU DIAGNOSIS >[BCM]
BCM (BODY CONTROL MODULE)
TRNK OPNR SWWhen back door opener switch is not pressed OFF
When back door opener switch is pressed
ON
TURN SIGNAL L Turn signal switch OFF
OFF

Page 429 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
BCM (BODY CONTROL MODULE)BCS-43
< ECU DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N
Terminal LayoutINFOID:0000000005146429
Physical ValuesINFOID:0000000005146430
LIIA2443E
Revision: April 200920

Page 430 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-44
< ECU DIAGNOSIS >[BCM]
BCM (BODY CONTROL MODULE)
Te r m i n a lWire 
color Signal name Signal 
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition 
switch Operation

Page 431 of 4210

INFINITI QX56 2010  Factory Service Manual BCS
BCM (BODY CONTROL MODULE)BCS-45
< ECU DIAGNOSIS > [BCM]
C
D
E
F
G H
I
J
K L
B A
O P
N19 V/W
Remote keyless entry 
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G/W Remote keyless ent

Page 432 of 4210

INFINITI QX56 2010  Factory Service Manual BCS-46
< ECU DIAGNOSIS >[BCM]
BCM (BODY CONTROL MODULE)
28 L/R Front blower monitor Input ONFront blower motor OFF
Battery voltage
Front blower motor ON 0V
29 W/B Hazard switch Input OFFON
0V
OFF 5V
3