2008 INFINITI QX56 warning

WCS
WARNING CHIME SYSTEMWCS-27
< COMPONENT DIAGNOSIS >
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ALNIA0653GB
Revision: March 2010 2008 QX56

WCS-28
< COMPONENT DIAGNOSIS >
WARNING CHIME SYSTEM
ALNIA0654GB
Revision: March 20102008 QX56

WCS
COMBINATION METERWCS-29
< ECU DIAGNOSIS >
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ECU DIAGNOSIS
COMBINATION METER
Reference ValueINFOID:0000000004871168
TERMINAL LAYOUT
PHYSICAL VALUES
WKIA5724E
Te r m i - nal Wire
color Item Condition
Reference value (V)
(Approx.)
Ignition
switch Operation or condition
3 Y/L Fuel level sensor signal — —Refer to
MWI-12, "
FUEL GAUGE : System
Description".
4 B/P Fuel level sensor ground ON —0
6 BR/W Generator ONGenerator voltage low
0
Generator voltage normal Battery voltage
10 L CAN-H —— —
11 P C A N - L —— —
13 P Air bag warning lamp in-
put ONAir bag warning lamp ON
4
Air bag warning lamp OFF 0
15 BR CK SUSP warning lamp
input —CK SUSP warning lamp
ON
0
CK SUSP warning lamp
OFF Battery voltage
20 B Ground —— 0
21 O/L Ignition switch ON or
START ON
— Battery voltage
23 W/L Washer fluid level switch ON Washer fluid level low
0
Washer fluid level normal Battery voltage
24 O/B Seat belt buckle switch
LH ONUnfastened (ON)
0
Fastened (OFF) Battery voltage
25 P/L Seat belt buckle switch
RH ONUnfastened (ON)
0
Fastened (OFF) Battery voltage
31 G Parking brake switch ON Parking brake applied
0
Parking brake released Battery voltage
32 P/B Brake fluid level switch ON Brake fluid level low
0
Brake fluid level normal Battery voltage
33 R/G Stop lamp switch —Brake pedal depressed
Battery voltage
Brake pedal released 0
Revision: March 2010 2008 QX56

WCS
COMBINATION METERWCS-49
< ECU DIAGNOSIS >
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DTC IndexINFOID:0000000004871171
Function Specifications
Speedometer
Zero indication.
Tachometer
Fuel gauge
Engine coolant temperature gauge
Engine oil pressure gauge
Voltage gauge
A/T oil temperature gauge
Illumination control
Meter illumination Change to nighttime mode when communication is lost.
Segment LCD Odometer
Freeze current indication.
A/T position Display turns off.
Buzzer Buzzer turns off.
Warning lamp/indicator lamp ABS warning lamp
Lamp turns on when communication is lost.
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
A/T CHECK warning lamp
Lamp turns off when communication is lost.
Oil pressure/coolant temperature
warning lamp
Light indicator
Malfunction indicator lamp
Master warning lamp
Air bag warning lamp
High beam indicator
Turn signal indicator lamp
CRUISE indicator lamp
Driver and passenger seat belt warn-
ing lamp
Lamp turns off when disconnected.
Charge warning lamp
Security indicator lamp
4WD indicator lamp
ATP indicator lamp
CK SUSP warning lamp
Low tire pressu
re warning lamp Lamp will flash every second for 1 minute and then stay on con-
tinuously thereafter.
CONSULT-III display
MalfunctionReference
page
CAN COMM CIRC
[U1000] Malfunction is detected in CAN communication.
CAUTION:
Even when there is no ma
lfunction on CAN communication system, malfunction may be
misinterpreted when battery has low voltag e (when maintaining 7 - 8 V for about 2 sec-
onds) or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected. MWI-28
VEHICLE SPEED
CIRC
[B2205]Malfunction is detected when an erroneous speed signal is input.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be misin-
terpreted when battery has low voltage (whe
n maintaining 7 - 8 V for about 2 seconds). MWI-29
Revision: March 2010
2008 QX56

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 condition
1BR/W Ignition keyhole illumi-
nation Output OFFDoor is locked (SW OFF)
Battery voltage
Door is unlocked (SW ON) 0V
2SB Combination switch
input 5 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
3G/Y Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4Y Combination switch
input 3 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
5G/B Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6V Combination switch
input 1
9GR/R Rear window defogger
switch
Input ONRear window defogger switch
ON
0V
Rear window defogger switch
OFF 5V
10 G Hazard lamp flash Input OFF ON (opening or closing)
0V
OFF (other than above) Battery voltage
11 O Ignition switch (ACC
or ON)
InputACC or
ON Ignition switch ACC or ON
Battery voltage
12 R/L Front door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
15 L/W Tire pressure warning
check connector
Input OFF
—5V
18 P Remote keyless entry
receiver and optical
sensor (ground)
Output OFF
—0V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Revision: March 2010 2008 QX56

WCS-64
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
CONSULT displayFail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
further testing
may be required. ————
U1000: CAN COMM CIRCUIT ———BCS-30
U1010: CONTROL UNIT (CAN) ———BCS-31
B2190: NATS ANTENNA AMP ———SEC-29
B2191: DIFFERENCE OF KEY ———SEC-32
B2192: ID DISCORD BCM-ECM ———SEC-33
B2193: CHAIN OF BCM-ECM ———SEC-35
B2552: INTELLIGENT KEY ———SEC-37
B2590: NATS MALFUNCTION ———SEC-38
C1704: LOW PRESSURE FL ———WT-31
C1705: LOW PRESSURE FR ———WT-31
C1706: LOW PRESSURE RR ———WT-31
C1707: LOW PRESSURE RL ———WT-31
C1708: [NO DATA] FL ———WT-14
C1709: [NO DATA] FR ———WT-14
C1710: [NO DATA] RR ———WT-14
C1711: [NO DATA] RL ———WT-14
C1712: [CHECKSUM ERR] FL ———WT-16
C1713: [CHECKSUM ERR] FR ———WT-16
C1714: [CHECKSUM ERR] RR ———WT-16
C1715: [CHECKSUM ERR] RL ———WT-16
C1716: [PRESSDATA ERR] FL ———WT-18
C1717: [PRESSDATA ERR] FR ———WT-18
C1718: [PRESSDATA ERR] RR ———WT-18
C1719: [PRESSDATA ERR] RL ———WT-18
C1720: [CODE ERR] FL ———WT-16
C1721: [CODE ERR] FR ———WT-16
C1722: [CODE ERR] RR ———WT-16
C1723: [CODE ERR] RL ———WT-16
C1724: [BATT VOLT LOW] FL ———WT-16
C1725: [BATT VOLT LOW] FR ———WT-16
C1726: [BATT VOLT LOW] RR ———WT-16
C1727: [BATT VOLT LOW] RL ———WT-16
C1729: VHCL SPEED SIG ERR ———WT-19
C1735: IGNITION SIGNAL ———WT-20
Revision: March 2010 2008 QX56

WCS
THE LIGHT REMINDER WARNING DOES NOT SOUNDWCS-65
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
THE LIGHT REMINDER WA RNING DOES NOT SOUND
DescriptionINFOID:0000000001697705
Light reminder warning does not sound even though headlamp is illuminated.
Diagnosis ProcedureINFOID:0000000001697706
1.CHECK COMBINATION SWITCH (L IGHTING SWITCH) OPERATION
Check that the headlamps operate normally by operat ing the combination switch (lighting switch).
Do they operate normally?
YES >> GO TO 2
NO >> Refer to EXL-4, "
Work Flow".
2.CHECK FRONT DOOR SWITCH LH SIGNAL CIRCUIT
Perform inspection of the front door sw itch LH signal circuit. Refer to DLK-67, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK FRONT DOOR SWITCH LH
Perform a unit inspection for the front door switch LH. Refer to DLK-67, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Replace the BCM. Refer to BCS-55, "Removal and Installation".
NO >> Replace the front door switch LH.
Revision: March 2010 2008 QX56

WCS-66
< SYMPTOM DIAGNOSIS >
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND
DescriptionINFOID:0000000001697707
• Seat belt warning does not sound even though driver seat belt is not fastened.
• Seat belt warning sounds even though driver seat belt is fastened.
Diagnosis ProcedureINFOID:0000000001697708
1.CHECK WARNING CHIME OPERATION
1. With key removed from key switch and the front door LH open, turn lighting switch to 1st or 2nd position.
2. Return lighting switch to off position, and insert key into key switch.
Does warning chime sound for both steps?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-76, "
Removal and Installation".
2.CHECK SEAT BELT WARNING LAMP
1. Turn ignition switch ON.
2. Check the operation of the seat belt warning lamp in the combination meter.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-55, "Removal and Installation".
NO >> GO TO 3
3.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
Perform inspection of the seat belt buckle switch circuit. Refer to WCS-20, "
DiagnosisProcedure".
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK SEAT BELT BUCKLE SWITCH UNIT
Perform a unit inspection for the seat belt buckle switch. Refer to WCS-21, "
Component Inspection".
Is the inspection result normal?
YES >> Replace the combination meter. Refer to MWI-76, "Removal and Installation".
NO >> Replace the seat belt buckle pre-tensioner assembly LH (seat belt buckle switch).
Seat belt fastened : OFF
Seat belt not fastened : ON
Revision: March 2010
2008 QX56