ground INFINITI QX56 2011 Factory Service Manual

BCS
BCM
BCS-45
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
35
(R/W) Ground
Combination switch
OUTPUT 2 OutputCombination
switch
(Wiper volume
dial 4) All switches OFF
7.0 - 8.0 V
Lighting switch 2ND
1.2 V
Lighting switch PASS
Front wiper switch AUTO
Front wiper switch HI
36
(SB) Ground Combination switch
OUTPUT 1
OutputCombination
switch
(Wiper volume
dial 4) All switches OFF
7.0 - 8.0 V
Turn signal switch RH
1.2 V
Turn signal switch LH
Front wiper switch LO
Front wiper switch MIST
Front washer switch ON
37
(G/Y) Ground P position Input Selector lever P position 0 V
Any position other than P 12 V
39
(L) Ground CAN-H Input/
Output ——
40
(P) Ground CAN-L Input/
Output ——
43
(Y/L) Ground Back door switch Input Back door
switchOFF
(When back door closed)
9.0 - 10.0 V
ON
(When back door opened) 0 V
Terminal No.
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
JPMIA0593GB
Revision: 2010 May2011 QX56

BCS-46
< ECU DIAGNOSIS INFORMATION >
BCM
44
(G/W) Ground Rear wiper stop po-
sition
InputIgnition switch
ON Rear wiper stop position 12 V
Any position other than
rear wiper stop position
0 V
45
(W) Ground Passenger door
switch
InputPassenger door
switch OFF (When passenger
door closed)
7.0 - 8.0 V
ON (When passenger
door opened) 0 V
46
(GR) Ground Rear RH door switch Input Rear RH door
switchOFF (When rear RH door
closed)
7.0 - 8.0 V
ON (When rear RH door
opened) 0 V
47
(GR/R) Ground Driver door switch Input
Driver door
switchOFF (When driver door
closed)
7.0 - 8.0 V
ON (When driver door
opened) 0 V
48
(O) Ground Rear LH door switch Input
Rear LH door
switchOFF (When rear LH door
closed)
7.0 - 8.0 V
ON (When rear door LH
opened) 0 V
49
(BR/Y) Ground Luggage room lamp Output
Luggage room
lampOFF 12 V
ON 0 V
51
(W/R) Ground
Back door request
switch Input
Back door re-
quest switch ON (Pressed) 0 V
OFF (Not pressed) 12 V
54
(L) Ground Rear wiper Output Rear wiper OFF (Stopped) 0 V
ON (Activated) 12 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIB4960J
PKIB4960J
PKIB4960J
PKIB4960J
Revision: 2010 May2011 QX56

BCS
BCM
BCS-47
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
55
(G) Ground Rear door UNLOCK Output Rear door UNLOCK (Actuator is acti-
vated)
12 V
Other then UNLOCK (Ac-
tuator is not activated) 0 V
56
(W/R) Ground Interior room lamp
power supply OutputInterior room lamp battery saver is activated.
(Cuts the interior room
lamp power supply) 0 V
Interior room lamp battery saver is not acti-
vated.
(Outputs the interior room lamp power sup-
ply) 12 V
57
(LG) Ground Battery power sup-
ply
Input Ignition switch OFF Battery voltage
59
(G) Ground Passenger door UN-
LOCK
Output Passenger door UNLOCK (Actuator is acti-
vated)
12 V
Other then UNLOCK (Ac-
tuator is not activated) 0 V
60
(G) Ground Turn signal LH Output Ignition switch
ONTurn signal switch OFF 0 V
Turn signal switch LH
6.0 - 7.0 V
61
(G/Y) Ground Turn signal RH Output Ignition switch
ONTurn signal switch OFF 0 V
Turn signal switch RH
6.0 - 7.0 V
62
(R) Ground Step lamp Output Step lamp ON 0 V
OFF 12 V
63
(BR) Ground Interior room lamp
timer control
OutputInterior room
lamp OFF 12 V
ON 0 V
64
(GR/R) Ground Cranking request input
Ignition switch
ONEngine stopped (Selector
lever is in P position)
0 V
Engine stopped (Selector
lever is not in P position) 12 V
Engine running 12 V
65
(R) Ground All doors, fuel lid
LOCK
Output All doors, fuel lid LOCK (Actuator is activat-
ed)
12 V
Other then LOCK (Actua-
tor is not activated) 0 V
Terminal No.
(Wire color) Description
Condition
Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIC6370E
PKIC6370E
Revision: 2010 May2011 QX56

BCS-48
< ECU DIAGNOSIS INFORMATION >
BCM
66
(V) Ground Driver door, fuel lid
UNLOCK OutputDriver door, fuel
lid UNLOCK (Actuator is acti-
vated)
12 V
Other then UNLOCK (Ac-
tuator is not activated) 0 V
67
(B) Ground Ground Output Ignition switch ON 0 V
68
(Y) Ground P/W power supply
(IGN)
Output Ignition switch ON 12 V
69
(W) Ground
P/W power supply
(BAT) Output Ignition switch OFF 12 V
70
(Y) Ground Battery power sup-
ply Input Ignition switch OFF Battery voltage
72
(P) Ground Puddle lamp control Output Puddle lamp OFF 12 V
ON 0 V
73
(W) Ground ON indicator lamp Output Ignition switch OFF (LOCK indicator is
not illuminated)
Battery voltage
ON 0 V
74
(Y/B) Ground Trailer turn signal
RH control
OutputIgnition switch
ON Turn signal switch OFF Battery voltage
Turn signal switch RH
6.0 - 7.0 V
75
(LG/R) Ground
Driver door request
switch Input
Driver door re-
quest switch ON (Pressed) 0 V
OFF (Not pressed) 12 V
76
(P/L) Ground
Passenger door re-
quest switch Input
Passenger door
request switch ON (Pressed) 0 V
OFF (Not pressed) 12 V
77
(O/L) Ground Trailer turn signal LH
control
OutputIgnition switch
ON Turn signal switch OFF Battery voltage
Turn signal switch LH
6.0 - 7.0 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIC6370E
PKIC6370E
Revision: 2010 May2011 QX56

BCS
BCM
BCS-49
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
78
(P/B) Ground
Driver door antenna
(+) OutputWhen the driver
door request
switch is operat-
ed with ignition
switch OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
79
(V) Ground Driver door antenna
(-)
OutputWhen the driver
door request
switch is operat-
ed with ignition
switch OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
80
(LG/B) Ground Passenger door an-
tenna (+) OutputWhen the pas-
senger door re-
quest switch is
operated with
ignition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
Terminal No.
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
Revision: 2010 May2011 QX56

BCS-50
< ECU DIAGNOSIS INFORMATION >
BCM
81
(Y/R) Ground
Passenger door an-
tenna (-) OutputWhen the pas-
senger door re-
quest switch is
operated with
ignition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
82
(W/G) Ground Back door antenna
(+)
OutputWhen the back
door request
switch is operat-
ed with ignition
switch OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
83
(B/W) Ground Back door antenna (-
) OutputWhen the back
door request
switch is operat-
ed with ignition
switch OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
Revision: 2010 May2011 QX56

BCS
BCM
BCS-51
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
84
(BR) Ground
Room antenna 1 (+)
(Instrument center) Output
Ignition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
85
(Y) Ground Room antenna 1 (-)
(Instrument center)
OutputIgnition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
86
(W) Ground Room antenna 2 (+)
(Console) OutputIgnition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
Terminal No.
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
Revision: 2010 May2011 QX56

BCS-52
< ECU DIAGNOSIS INFORMATION >
BCM
87
(B) Ground
Room antenna 2 (
−)
(Console) Output
Ignition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
88
(V) Ground Luggage room an-
tenna (+)
OutputIgnition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
89
(G) Ground Luggage room an-
tenna (-) OutputIgnition switch
OFF When Intelligent Key is
not in the antenna detec-
tion area
When Intelligent Key is in
the antenna detection
area
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
JMKIA3838GB
JMKIA3839GB
Revision: 2010 May2011 QX56

BCS
BCM
BCS-53
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
90
(Y) Ground Push-button ignition
switch illumination OutputPush-button ig-
nition switch illu-
mination ON 12 V
OFF 0 V
91
(O) Ground LOCK indicator lamp Output LOCK indicator
lampOFF (Ignition switch OFF) Battery voltage
ON 0 V
92
(L) Ground Push-button ignition
switch illumination
ground Output Tail lamp OFF 0 V
ON
NOTE:
When the illumination brighten-
ing/dimming level is in the neutral position
6.0 - 7.0 V
93
(GR/R) GroundIntelligent Key warn-
ing buzzer
OutputIntelligent Key
warning buzzer Sounding 0 V
Not sounding 12 V
94
(Y/G) Ground Steering lock unit
communication Input/
Output Steering lock LOCK status 12 V
LOCK or UNLOCK
For 15 seconds after UN-
LOCK
12 V
15 seconds or later after
UNLOCK 0 V
95
(W) Ground
Steering lock unit
power supply Output Ignition switch OFF or ACC 12 V
ON 0 V
96
(BR) Ground ACC relay control Output Ignition switch OFF 0 V
ACC or ON 12 V
97
(R/W) Ground Starter relay control Output Ignition switch
ONWhen selector lever is in
P or N position
12 V
When selector lever is not
in P or N position 0 V
98
(O) Ground Ignition relay (IPDM
E/R) control
Output Ignition switch OFF or ACC 12 V
ON 0 V
99
(R) Ground Ignition relay-1 con-
trol
Output Ignition switch OFF or ACC 0 V
ON 12 V
100
(SB) Ground
Push-button ignition
switch (push switch) InputPush-button ig-
nition switch
(push switch) Pressed 0 V
Not pressed 12 V
101
(W/B) Ground Ignition power sup-
ply No. 2 Output Ignition switch OFF or ACC 0 V
ON 12 V
Terminal No.
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
JPMIA1554GB
JMKIA0066GB
Revision: 2010 May2011 QX56

BCS-54
< ECU DIAGNOSIS INFORMATION >
BCM
*: For Canada
Fail-safeINFOID:0000000006274820
FAIL-SAFE CONTROL BY DTC
BCM performs fail-safe control when any DTC are detected.
102
(BR) Ground P/N position Input Selector lever P or N position 12 V
Except P and N positions 0 V
104
(R/B) Ground A/T shift selector
(detention switch)
power supply Output Ignition switch ON 12 V
105
(O/L) Ground Stop lamp switch 2 Input Ignition switch OFF Battery voltage
106
(Y/G) Ground
Blower fan motor re-
lay control Output Ignition switch OFF or ACC 0 V
ON 12 V
107 (L) Ground
Steering lock condi-
tion No. 1 Input Steering lock LOCK status 0 V
UNLOCK status 12 V
108 (P) Ground
Steering lock condi-
tion No. 2 Input Steering lock LOCK status 12 V
UNLOCK status 0 V
109
(L/W) Ground ACC indicator lamp Output Ignition switch OFF (LOCK indicator is
not illuminated)
Battery voltage
ACC 0 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
Display contents of CONSULT Fail-safe Cancellation
B2013: ID DISCORD BCM-S/ L Inhibit engine cranking When communication between BCM and steering lock unit are commu-
nicated normally.
B2014: CHAIN OF S/L-BCM Inhibit engine cranking When communication between BCM and steering lock unit are commu-
nicated normally.
B2192: ID DISCORD BCM-ECM Inhibit engine cranking Erase DTC
B2193: CHAIN OF BCM-ECM Inhibit engine cranking Erase DTC
B2195: ANTI-SCANNING Inhibit engine cranking Ignition switch ON → OFF
B2198: NATS ANTENNA AMP Inhibit engine cranking Erase DTC
B2557: VEHICLE SPEED In hibit steering lockWhen the following CAN signal status (vehicle speed signal) becomes
consistent
 Vehicle speed signal (ABS)
 Vehicle speed signal (Meter)
B2601: SHIFT POSITION Inhibit steering lock 500 ms after the following signal reception status becomes consistent
 Selector lever P position switch signal
 P range signal (CAN)
B2602: SHIFT POSITION Inhibit steering lock 5 seconds after the following BCM recognition conditions are fulfilled
 Ignition switch is in the ON position
 Selector lever P position switch signal: Except P position (battery volt-
age)
 Vehicle speed: 4 km/h (2.5 MPH) or more
Revision: 2010 May2011 QX56