INFINITI QX56 2011 Factory Service Manual

BCS
BCM
BCS-33
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
ECU DIAGNOSIS INFORMATION
BCM
Reference ValueINFOID:0000000006274819
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
Monitor Item Condition Value/Status
FR WIPER HI Other than front wiper switch HI Off
Front wiper switch HI On
FR WIPER LOW Other than front wiper switch LO Off
Front wiper switch LO On
FR WASHER SW Front washer switch OFF Off
Front washer switch ON On
FR WIPER INT Other than front wiper switch AUTO Off
Front wiper switch AUTO On
FR WIPER STOP Front wiper is not in STOP position Off
Front wiper is in STOP position On
INT VOLUME Wiper volume dial is in a dial position 1 - 7 Wiper volume dial po-
sition
RR WIPER ON Other than rear wiper switch ON Off
Rear wiper switch ON On
RR WIPER INT Other than rear wiper switch INT Off
Rear wiper switch INT On
RR WASHER SW Rear washer switch OFF Off
Rear washer switch ON On
RR WIPER STOP Rear wiper is in STOP position Off
Rear wiper is not in STOP position On
TURN SIGNAL R Other than turn signal switch RH Off
Turn signal switch RH On
TURN SIGNAL L Other than turn signal switch LH Off
Turn signal switch LH On
TA I L L A M P S W Other than lighting switch 1ST and 2ND Off
Lighting switch 1ST or 2ND On
HI BEAM SW Other than lighting switch HI Off
Lighting switch HI On
HEAD LAMP SW 1 Other than lighting switch 2ND Off
Lighting switch 2ND On
HEAD LAMP SW 2 Other than lighting switch 2ND Off
Lighting switch 2ND On
PASSING SW Other than lighting switch PASS Off
Lighting switch PASS On
AUTO LIGHT SW Other than lighting switch AUTO Off
Lighting switch AUTO On
FR FOG SW Front fog lamp switch OFF Off
Front fog lamp switch ON On
Revision: 2010 May2011 QX56

BCS-34
< ECU DIAGNOSIS INFORMATION >
BCM
RR FOG SWNOTE:
The item is indicated, but not monitored. Off
DOOR SW-DR Driver door closed Off
Driver door opened On
DOOR SW-AS Passenger door closed Off
Passenger door opened On
DOOR SW-RR Rear RH door closed Off
Rear RH door opened On
DOOR SW-RL Rear LH door closed Off
Rear LH door opened On
DOOR SW-BK Back door closed Off
Back door opened On
CDL LOCK SW Other than power door lock switch LOCK Off
Power door lock switch LOCK On
CDL UNLOCK SW Other than power door lock switch UNLOCK Off
Power door lock switch UNLOCK On
KEY CYL LK-SW Other than driver door key cylinder LOCK position Off
Driver door key cylinder LOCK position On
KEY CYL UN-SW Other than driver door key cylinder UNLOCK position Off
Driver door key cylinder UNLOCK position On
HAZARD SW Hazard switch is OFF Off
Hazard switch is ON On
REAR DEF SW Rear window defogger switch OFF Off
Rear window defogger switch ON On
TR/BD OPEN SW Back door opener switch OFF Off
While the back door opener switch is turned ON On
TRNK/HAT MNTR NOTE:
The item is indicated, but not monitored.
Off
FA N O N S I G NOTE:
The item is indicated, but not monitored.
Off
AIR COND SW NOTE:
The item is indicated, but not monitored. Off
RKE-LOCK LOCK button of the key is not pressed Off
LOCK button of the key is pressed On
RKE-UNLOCK UNLOCK button of the key is not pressed Off
UNLOCK button of the key is pressed On
RKE-TR/BD BACK DOOR OPEN button of the key is not pressed Off
BACK DOOR OPEN button of the key is pressed On
RKE-PANIC PANIC button of the key is not pressed Off
PANIC button of the key is pressed On
RKE-MODE CHG LOCK/UNLOCK button of the key is not pressed and held simultaneously Off
LOCK/UNLOCK button of the key is pressed and held simultaneously On
OPTI SEN (DTCT) Bright outside of the vehicle Close to 5 V
Dark outside of the vehicle Close to 0 V
OPTI SEN (FILT) Bright outside of the vehicle (Lighting switch AUTO) Close to 5 V
Dark outside of the vehicle (Lighting switch AUTO) Close to 1.50 V
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

BCS
BCM
BCS-35
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
OPTICAL SENSOR
NOTE:
The item is indicated, but not monitored. Off
RAIN SENSOR No rain (or very light rain) Off
Light rain
LOW
Heavy rain HIGH
When liquid is splashed on the front window SPLSH
Rain sensor internal error NG
REQ SW -DR Driver door request switch is not pressed Off
Driver door request switch is pressed On
REQ SW -AS Passenger door request switch is not pressed Off
Passenger door request switch is pressed On
REQ SW -RR NOTE:
The item is indicated, but not monitored.
Off
REQ SW -RL NOTE:
The item is indicated, but not monitored. Off
REQ SW -BD/TR Back door request switch is not pressed Off
Back door request switch is pressed On
PUSH SW Push-button ignition switch (push switch) is not pressed Off
Push-button ignition switch (push switch) is pressed On
CLUCH SW NOTE:
The item is indicated, but not monitored. Off
BRAKE SW 1 The brake pedal is not depressed Off
The brake pedal is depressed On
BRAKE SW 2 The brake pedal is depressed when No. 7 fuse is blown Off
The brake pedal is not depressed when No. 7 fuse is blown, or No. 7 fuse
is normal
On
DETE/CANCL SW Selector lever in P position Off
Selector lever in any position other than P On
SFT PN/N SW Selector lever in any position other than P and N Off
Selector lever in P or N position On
S/L -LOCK Steering is locked Off
Steering is unlocked On
S/L -UNLOCK Steering is unlocked Off
Steering is locked On
S/L RELAY-F/B Steering is unlocked Off
Steering is locked On
UNLK SEN -DR Driver door is locked Off
Driver door is unlocked On
PUSH SW -IPDM Push-button ignition switch (push-switch) is not pressed Off
Push-button ignition switch (push-switch) is pressed On
IGN RLY1 -F/B Ignition switch in OFF or ACC position Off
Ignition switch in ON position On
DETE SW -IPDM Selector lever in any position other than P Off
Selector lever in P position On
SFT PN -IPDM Selector lever in any position other than P and N Off
Selector lever in P or N position On
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

BCS-36
< ECU DIAGNOSIS INFORMATION >
BCM
SFT P -METSelector lever in any position other than P Off
Selector lever in P position On
SFT N -MET Selector lever in any position other than N Off
Selector lever in N position On
ENGINE STATE Engine stopped Stop
While the engine stalls Stall
At engine cranking Crank
Engine running Run
S/L LOCK-IPDM Steering is locked Off
Steering is unlocked On
S/L UNLK-IPDM Steering is unlocked Off
Steering is locked On
S/L RELAY-REQ Steering is unlocked Off
Steering is locked On
VEH SPEED 1 While driving Equivalent to speed-
ometer reading
VEH SPEED 2 While driving Equivalent to speed-
ometer reading
DOOR STAT-DR Driver door is locked LOCK
Wait with selective UNLOCK operation (60 seconds) READY
Driver door is unlocked UNLOCK
DOOR STAT-AS Passenger door is locked LOCK
Wait with selective UNLOCK operation (60 seconds) READY
Passenger door is unlocked UNLOCK
ID OK FLAG Steering is locked Reset
Steering is unlocked Set
PRMT ENG STRT The engine start is prohibited Reset
The engine start is permitted Set
PRMT RKE STRT NOTE:
The item is indicated, but not monitored.
Reset
RKE OPE COUN1 During the operation of the key Operation frequency
of the key
RKE OPE COUN2 NOTE:
The item is indicated, but not monitored. —
CONFRM ID ALL The key ID that the key slot receives is not recognized by any key ID reg-
istered to BCM.
Ye t
The key ID that the key slot receives is recognized by any key ID regis-
tered to BCM. Done
CONFIRM ID4 The key ID that the key slot receives is not recognized by the fourth key ID
registered to BCM.
Ye t
The key ID that the key slot receives is recognized by the fourth key ID reg-
istered to BCM. Done
CONFIRM ID3 The key ID that the key slot receives is not recognized by the third key ID
registered to BCM.
Ye t
The key ID that the key slot receives is recognized by the third key ID reg-
istered to BCM. Done
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

BCS
BCM
BCS-37
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
CONFIRM ID2
The key ID that the key slot receives is not recognized by the second key
ID registered to BCM.
Ye t
The key ID that the key slot receives is recognized by the second key ID
registered to BCM. Done
CONFIRM ID1 The key ID that the key slot receives is not recognized by the first key ID
registered to BCM.
Ye t
The key ID that the key slot receives is recognized by the first key ID reg-
istered to BCM. Done
NOT REGISTERED BCM detects registered key ID, or BCM does not detect key ID. ID OK
BCM detects non-registration key ID. ID NG
TP 4 The ID of fourth key is not registered to BCM Yet
The ID of fourth key is registered to BCM Done
TP 3 The ID of third key is not registered to BCM Yet
The ID of third key is registered to BCM Done
TP 2 The ID of second key is not registered to BCM Yet
The ID of second key is registered to BCM Done
TP 1 The ID of first key is not registered to BCM Yet
The ID of first key is registered to BCM Done
BUZZER Tire pressure warning alarm is not sounding Off
Tire pressure warning alarm is sounding On
Monitor Item Condition Value/Status
Revision: 2010 May2011 QX56

BCS-38
< ECU DIAGNOSIS INFORMATION >
BCM
TERMINAL LAYOUT
PHYSICAL VALUES
JMMIA0323ZZ
Revision: 2010 May2011 QX56

BCS
BCM
BCS-39
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N
Terminal No.
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
2
(BR/Y) Ground Combination switch
INPUT 5
InputCombination
switch
(Wiper volume
dial 4) All switches OFF 0 V
Turn signal switch RH
1.0 V
Lighting switch HI
Lighting switch 1ST
Lighting switch 2ND
2.0 V
3
(GR) Ground Combination switch
INPUT 4 InputCombination
switch
(Wiper volume
dial 4) All switches OFF 0 V
Turn signal switch LH
1.0 V
Lighting switch PASS
Lighting switch 2ND
Front fog lamp switch ON
0.8 V
4
(L) Ground Combination switch
INPUT 3
InputCombination
switch
(Wiper volume
dial 4) All switches OFF 0 V
Front wiper switch LO
1.0 V
Front wiper switch MIST
Front wiper switch AUTO
Lighting switch AUTO
PKIB4958J
JPMIA0342JP
PKIB4958J
PKIB4956J
PKIB4958J
Revision: 2010 May2011 QX56

BCS-40
< ECU DIAGNOSIS INFORMATION >
BCM
5
(G) Ground
Combination switch
INPUT 2 Input
Combination
switch All switches OFF
(Wiper volume dial 4)
0 V
Front washer switch ON
(Wiper volume dial 4)
1.0 V
Rear washer switch ON
(Wiper volume dial 4)
Any of the condition below
with all switches OFF
 Wiper volume dial 1
 Wiper volume dial 5
 Wiper volume dial 6
Rear wiper switch ON
(Wiper volume dial 4)
0.8 V
6
(V) Ground Combination switch
INPUT 1 InputCombination
switch All switches OFF
(Wiper volume dial 4)
0 V
Front wiper switch HI
(Wiper volume dial 4)
1.0 V
Rear wiper switch INT
(Wiper volume dial 4)
Wiper volume dial 3
(All switches OFF)
Any of the condition below
with all switches OFF
 Wiper volume dial 1
 Wiper volume dial 2
1.9 V
Any of the condition below
with all switches OFF
 Wiper volume dial 6
 Wiper volume dial 7 0.8 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −PKIB4958J
PKIB4956J
PKIB4958J
PKIB4952J
PKIB4956J
Revision: 2010 May2011 QX56

BCS
BCM
BCS-41
< ECU DIAGNOSIS INFORMATION >
C
D E
F
G H
I
J
K L
B A
O P
N8
(V) Ground Power window
switch communica-
tion Input/
Output Ignition switch ON
9.0 - 10 V
9
(R) Ground Stop lamp switch 1 Input Stop lamp
switchOFF (Brake pedal is not
depressed)
0 V
ON (Brake pedal is de-
pressed) Battery voltage
11
(R) Ground
Light and rain sensor
serial link Input/
Output Ignition switch OFF 12 V
Ignition switch ON
8.0 - 9.0 V
14
(P/B) Ground Optical sensor Input Ignition switch
ONWhen bright outside of the
vehicle
Close to 5 V
When dark outside of the
vehicle Close to 0 V
16
(L/O) Ground Dimmer signal Output Ignition switch
ONEither of the following
conditions
 Lighting switch OFF
 The area around the ve-
hicle is bright (Shine a
light on the optical sen-
sor) 0 V
The area around the vehi-
cle is dark (Block the light
from the optical sensor) 12 V
17
(Y/G) Ground Sensor power sup-
ply
Output Ignition switch OFF, ACC 0 V
ON 5 V
18
(B/Y) Ground Receiver and sensor
ground Input Ignition switch ON 0 V
19
(BR) Ground Remote keyless en-
try receiver power
supply
Output Ignition switch OFF
Terminal No.
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −
PKIA7023E
JPMIA0156GB
JMKIA3838GB
Revision: 2010 May2011 QX56

BCS-42
< ECU DIAGNOSIS INFORMATION >
BCM
20
(G/R) Ground Remote keyless en-
try receiver commu-
nication
InputWaiting
Signal receiving
21
(P) Ground NATS antenna amp. Input/
Output During waiting Ignition switch is pressed
while inserting the key into
the key slot. Just after pressing ignition
switch. Pointer of tester should move.
22
(W/B) Ground Remote keyless en-
try receiver RSSI
InputWaiting 0 V
Signal receiving
23
(GR/R) GroundSecurity indicator
lamp
OutputSecurity indica-
tor lamp ON 0 V
Blinking (Ignition switch
OFF)
11.0 - 12.0 V
OFF Battery voltage
24*
(SB) Ground Dongle link
Input/
Output Ignition switch OFF 5 V
25
(LG/R) Ground NATS antenna amp.
Input/
Output During waiting Ignition switch is pressed
while inserting the key into
the key slot. Just after pressing ignition
switch. Pointer of tester should
move.
29
(W) Ground Hazard switch Input Hazard switch OFF 12 V
ON 0 V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
+ −JMKIA3838GB
JMKIA3841GB
JMKIA3838GB
JPMIA0590GB
Revision: 2010 May2011 QX56