INFINITI QX56 2011 Factory Service Manual

WCS
COMBINATION METERWCS-27
< ECU DIAGNOSIS INFORMATION >
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11
(G) Ground Enter switch signal Input Ignition
switch
ONWhen switch (enter
switch) is pressed
0 V
Other than the above 5 V
12
(O) Ground Select switch signal Input Ignition
switch
ONWhen switch (select
switch) is pressed
0 V
Other than the above 5 V
13
(W/R) Ground
Illumination control switch
signal (+) InputIgnition
switch
ON When switch [illumi-
nation control switch (+)] is
pressed
0 V
Other than the above 5 V
14
(R) Ground Illumination control switch
signal (
−) InputIgnition
switch
ON When switch [illumi-
nation control switch (
−)] is
pressed 0 V
Other than the above 5 V
15
(R/W) Ground Air bag signal Input Ignition
switch
ONAir bag warning lamp
ON
4 V
Air bag warning lamp
OFF 0 V
18
(W/R) Ground Ambient sensor signal Input — —
19
(V/W) Ground A/C auto amp. connection
recognition signal Input —When A/C auto amp. is
connected
5 V
Other than the above 0 V
20
(B) Ground Ambient sensor ground — Ignition
switch
ON—0 V
21
(L) —CAN-H — — — —
22
(P) —CAN-L — — — —
23
(B) Ground Ground — Ignition
switch
ON
—0 V
24
(V) Ground Fuel level sensor ground — Ignition
switch
ON—0 V
25
(O/L) Ground Alternator signal Input Ignition
switch
ONCharge warning lamp ON 2 V
Charge warning lamp OFF Battery voltage
26
(W) Ground Parking brake switch signal Input Ignition
switch
ONParking brake applied 0 V
Parking brake released 12 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
JSNIA0014GB
Revision: 2010 May2011 QX56

WCS-28
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
28
(GR/R) Ground Security signal Input Ignition
switch
ONSecurity indicator lamp ON 0 V
Security indicator lamp
OFF
12 V
29
(BR) Ground Washer level switch signal Input Ignition
switch
ONWasher level switch ON 0 V
Washer level switch OFF 5 V
30
(SB) Ground
Vehicle speed signal
(2-pulse) OutputIgnition
switch
ON Speedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)] NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).
31
(BR/W) GroundVehicle speed signal
(8-pulse)
OutputIgnition
switch
ONSpeedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)] NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).
33
(W) Ground SNOW mode signal Input Ignition
switch
ONWhen SNOW mode switch
is pressed
12 V
Other than the above 0 V
34
(BR/Y) Ground Fuel level sensor signal Input Ignition
switch
ON
—
35
(O/B) Ground Seat belt buckle switch sig-
nal (driver side)
InputIgnition
switch
ON When driver side belts is
fastened
12 V
When driver side belts is
unfastened 0 V
36
(G/Y) Ground Passenger seat belt warn-
ing signal
InputIgnition
switch
ON  When driver side seat
belt fastened
 When getting in the pas- senger seat
 When passenger seat belt fastened 12 V
 When driver side seat belt fastened
 When getting in the pas- senger seat
 When passenger seat belt unfastened 0 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
JSNIA0015GB
JSNIA0012GB
JSNIA3013ZZ
Revision: 2010 May2011 QX56

WCS
COMBINATION METERWCS-29
< ECU DIAGNOSIS INFORMATION >
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Fail-SafeINFOID:0000000006222689
FA I L - S A F E
The combination meter activates the fail-safe contro l if CAN communication with each unit is malfunctioning.
37
(R/Y) Ground Non-manual mode signal Input Ignition
switch
ONSelector manual mode po-
sition
12 V
Other than the above 0 V
38
(L/W) Ground Manual mode shift down
signal InputIgnition
switch
ON Selector lever DOWN oper-
ation
0 V
Other than the above 12 V
39
(Y/B) Ground Manual mode shift up sig-
nal InputIgnition
switch
ON Selector lever UP operation 0 V
Other than the above 12 V
40
(G/W) Ground Manual mode signal Input Ignition
switch
ONSelector manual mode po-
sition
0 V
Other than the above 12 V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
Function Specifications
Speedometer
Reset to zero by suspending communication.
Tachometer
Engine coolant temperature gauge
Engine oil pressure gauge
Illumination control When suspending communication, changes to nighttime mode.
Information display Odo/trip meter An indicated value is maintained at communications blackout.
Shift position indicator The display turns OFF by suspending communication.
Door open warning The display turns OFF by suspending communication.
Buzzer The buzzer turns OFF by suspending communication.
Revision: 2010 May2011 QX56

WCS-30
< ECU DIAGNOSIS INFORMATION >
COMBINATION METER
DTC Index
INFOID:0000000006222690
Warning lamp/indicator lamp ABS warning lamp
The lamp turns ON by suspending communication.
VDC warning lamp
Brake warning lamp
IBA OFF indicator lamp
4WD warning lamp
Malfunction indicator lamp
VDC OFF indicator lamp
CRUISE warning lamp
Low tire pressure warning lamp The lamp blinking caused by suspending communication.
High beam indicator lamp
The lamp turns OFF by suspending communication.
Turn signal indicator lamp
Tail lamp indicator lamp
A/T CHECK indicator lamp
Key warning lamp
ATP warning lamp
Lane departure warning lamp
LDP ON indicator lamp
CRUISE indicator lamp
Oil pressure warning lamp
SNOW mode indicator lamp
TOW mode indicator lamp
CK SUSP indicator lamp
BSW indicator lamp
Function Specifications
Display contents of CONSULT-III Diagnostic item is detected when... Refer to
CAN COMM CIRCUIT
[U1000] When combination meter is not transmitting or receiving CAN communication signal
for 2 seconds or more. MWI-59,
"Diagnosis
Procedure"
CONTROL UNIT (CAN)
[U1010]
When detecting error during the initial diagnosis of the CAN controller of combina-
tion meter. MWI-60, "Diagnosis
Procedure"
VEHICLE SPEED
[B2205]
The abnormal vehicle sp
eed signal is input from the ABS actuator and electric unit
(control unit) for 2 seconds or more. MWI-61, "Diagnosis
Procedure"
ENGINE SPEED
[B2267]
If ECM continuously transmits abnormal engine speed signals for 2 seconds or
more. MWI-62, "Diagnosis
Procedure"
WATER TEMP
[B2268]
If ECM continuously transmits abnormal engine coolant temperature signals for 60
seconds or more. MWI-63, "Diagnosis
Procedure"
Revision: 2010 May2011 QX56

WCS
BCM (BODY CONTROL MODULE)WCS-31
< ECU DIAGNOSIS INFORMATION >
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BCM (BODY CONTROL MODULE)
List of ECU ReferenceINFOID:0000000006222524
ECU Reference
BCM BCS-33, "
Reference Value"
BCS-54, "Fail-safe"
BCS-56, "DTCInspectionPriorityChart"
BCS-57, "DTCIndex"
Revision: 2010 May2011 QX56

WCS-32
< WIRING DIAGRAM >
WARNING CHIME SYSTEM
WIRING DIAGRAM
WARNING CHIME SYSTEM
Wiring DiagramINFOID:0000000006222525
JCNWM4806GB
Revision: 2010 May2011 QX56

WCS
WARNING CHIME SYSTEMWCS-33
< WIRING DIAGRAM >
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JCNWM4807GB
Revision: 2010 May2011 QX56

WCS-34
< WIRING DIAGRAM >
WARNING CHIME SYSTEM
JCNWM4808GB
Revision: 2010 May2011 QX56

WCS
WARNING CHIME SYSTEMWCS-35
< WIRING DIAGRAM >
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JCNWM4809GB
Revision: 2010 May2011 QX56

WCS-36
< WIRING DIAGRAM >
WARNING CHIME SYSTEM
JCNWM4810GB
Revision: 2010 May2011 QX56