2008 INFINITI QX56 Factory Service Manual

Page 3929 of 4083

INFINITI QX56 2008  Factory Service Manual WCS-52
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
HEADLAMP SW1Headlamp switch OFF OFF
Headlamp switch 1st
ON
HEADLAMP SW2 Headlamp switch OFF
OFF
Headlamp switch 1st ON
HI BEAM SW High beam switch OF

Page 3930 of 4083

INFINITI QX56 2008  Factory Service Manual WCS
BCM (BODY CONTROL MODULE)WCS-53
< ECU DIAGNOSIS >
C
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Terminal LayoutINFOID:0000000004871173
Physical ValuesINFOID:0000000004871174
LIIA2443E
Revision: March 2010 2008 QX5

Page 3931 of 4083

INFINITI QX56 2008  Factory Service Manual WCS-54
< ECU DIAGNOSIS >
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 or c

Page 3932 of 4083

INFINITI QX56 2008  Factory Service Manual WCS
BCM (BODY CONTROL MODULE)WCS-55
< ECU DIAGNOSIS >
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M B A
O P19 V/W Remote keyless entry 
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G/W Remote keyless entry 
rec

Page 3933 of 4083

INFINITI QX56 2008  Factory Service Manual WCS-56
< ECU DIAGNOSIS >
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
30 Y/B

Page 3934 of 4083

INFINITI QX56 2008  Factory Service Manual WCS
BCM (BODY CONTROL MODULE)WCS-57
< ECU DIAGNOSIS >
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M B A
O P44 O Rear wiper auto stop 
switch 1 Input ONRise up position (rear wiper 
arm on stopper)
0V
A Position (full clockwis

Page 3935 of 4083

INFINITI QX56 2008  Factory Service Manual WCS-58
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
58 W/R Optical sensorInput ONWhen optical sensor is illumi-
nated
3.1V or more
When optical sensor is not illu-
minated 0.6V or less
59 G Front door

Page 3936 of 4083

INFINITI QX56 2008  Factory Service Manual WCS
BCM (BODY CONTROL MODULE)WCS-59
< ECU DIAGNOSIS >
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Wiring DiagramINFOID:0000000004871175
ABMWA0918GB
Revision: March 2010 2008 QX56