lock INFINITI QX56 2007 Factory Service Manual

NAVIGATION SYSTEM
AV-103
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Confirmation/Adjustment ModeINFOID:0000000003533721
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MEMORY 4” button, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)
• Shifting from current screen to previous screen is performed
by pressing “BACK” button.
4. The initial self-diagnosis screen will be shown, and items “Self-
Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
3When “DVD-ROM error. Please check disc.” is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
2. Check ejected DVD-ROM for dirt, damage, and warpage.
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diag-
nosis again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the
map DVD-ROM is malfunctioning.Refer to
AV- 1 2 3
4If “Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance
with service manual” is shown, carry out same inspection as diagnosis No. 3.Refer to
AV- 1 2 3
5GPS antenna system.
1. Visually check for a broken wire in the GPS antenna coaxial cable.
2. Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI
control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS an-
tenna. If the connection is still malfunction after the replacement of the GPS antenna, the NAVI
control unit is malfunctioning.Refer to
AV- 1 2 4
Diagnosis
No.Possible causeReference
page
WKIA4439E
SKIA4207E

AV-108
< SERVICE INFORMATION >
NAVIGATION SYSTEM
NAVIGATION
1. The navigation screen will be shown, and items “Display Longi-
tude & Latitude”, “Speed Calibration”, “Angle Adjustment” and
“Initialize Location” will become selective.
2. Select each switch on “NAVIGATION” screen to display the rele-
vant diagnosis screen.
Angle adjustment
• Adjusts turning angle output detected by the gyroscope.
Speed Calibration
GPS RTC
malfunctionClock IC in GPS substrate is malfunctioning. • Correct time may not be displayed.
• After the power is turned on, the system al-
ways takes some time until GPS positioning
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat-
ellite information when it judged the data
stored in the receiver is correct.)
• Correct time of error occurrence may not be
stored in the ″Error History″. • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS anten-
na discon-
nectedMalfunctioning connection between GPS substrate in NAVI control
unit and GPS antenna.• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When connection between NAVI control unit and GPS antenna is
judged normal by self-diagnosis, the symptom may be intermit-
tent, caused by impact or vibration.
Low voltage
of GPSThe power voltage supplied to the GPS circuit board has de-
creased.• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When connection between NAVI control unit and GPS antenna is
judged normal by self-diagnosis, the symptom may be intermit-
tent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response Er-
rorMalfunctioning NAVI control unit. -
Dedicated map DVD-ROM is in the system, but the data cannot be
read.• The map of a particular location cannot be dis-
played.
• Specific guidance information cannot be dis-
played.
• Map display is slow.
• Guidance information display is slow.
• System has been affected by vibration. • Is map DVD-ROM damaged, warped, or dirty?
- If damaged or warped, the map DVD-ROM is malfunctioning.
- If dirty, wipe the DVD-ROM clean with a soft cloth.
• Perform self-diagnosis.
• When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration. Error itemPossible causes
Example of symptom
Action/symptom
WKIA4312E
WKIA4314E

NAVIGATION SYSTEM
AV-109
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• During normal driving, distance error caused by tire wear and tire
pressure change is automatically adjusted for by the automatic dis-
tance correction function. This function, on the other hand, is for
immediate adjustment, in cases such as driving with tire chain fit-
ted on tires.
CAN Diagnostic Support MonitorINFOID:0000000003533722
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MEMORY 4” button, turn the volume control
dial clockwise or counterclockwise for 30 clicks or more. (When
the self-diagnosis mode is started, a short beep will be heard.)
• Shifting from current screen to previous screen is performed
by pressing “BACK” button.
4. The initial self-diagnosis screen will be shown, and items “Self-
Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
5. Select “CAN DIAG SUPPORT MONITOR”.
WKIA4315E
WKIA4439E
SKIA4207E

BCS-6
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• When CAN communication operation is detected, it switches to CAN communication status.
• When a state of the following switches changes, it switches to CAN communication state:
- Ignition switch
- Key switch (insert)
- Hazard switch
- Main door lock/unlock switch
- Front door switch (LH, RH)
- Rear door switch (LH, RH)
- Back latch (door ajar switch)
- Glass hatch ajar switch
- Combination switch (passing, lighting switch 1st position, front fog lamp)
- Keyfob (lock/unlock signal)
- Front door lock assembly LH (key cylinder switch)
• When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.
• Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY
• Power door lock system. Refer to BL-15.
• Remote keyless entry system. Refer to BL-37
.
• Power window system. Refer to GW-15
. NOTE
• Sunroof system. Refer to RF-10. NOTE
• Room lamp timer. Refer to LT-101.
• Warning chime system. Refer to DI-36
.
• Turn signal and hazard warning lamps system. Refer to LT- 5 7
.
• Trailer turn signal and hazard warning lamps system (if equipped). Refer to LT- 9 4
.
• Rear wiper and washer system. Refer to WW-26
.
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
• Panic system. Refer to BL-37.
• Vehicle security system. Refer to BL-60
.
• IVIS (NATS) system. Refer to BL-116
.
• Headlamp, tail lamp, front fog lamp, auto light and battery saver control systems. Refer to LT- 5
, LT- 2 4, LT- 8 2,
LT- 4 9
or LT- 3 4.
• Front wiper and washer system. Refer to WW-3
.
• Rear window defogger system. Refer to GW-68
.
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote keyless entry system Remote keyless entry receiver (keyfob)• All door locking actuators
• Back door opener actuator
• Turn signal lamps
Power door lock system• Front power door lock/unlock switch (LH, RH)
• All door switches
• Key switchAll door locking actuators
Power supply [ignition (IGN)/retained ac-
cessory power (RAP)] to power window
and sunroofIGN/RAP supplyPower supply to power window and
sunroof system
Power supply (BAT) to power window
and sunroofBattery power supplyPower supply to power window and
sunroof system
Panic alarm• Key switch
• Remote keyless entry receiver (keyfob)IPDM E/R
Auto light system• Optical sensor
• Combination switchIPDM E/R
Battery saver control• Ignition switch
• Combination switch
• Front door switch LH and RHIPDM E/R

BCM (BODY CONTROL MODULE)
BCS-7
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CAN Communication System DescriptionINFOID:0000000003533597
Refer to LAN-4.
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch• Turn signal lamp
• Combination meter
Hazard lamp Hazard switch• Turn signal lamp
• Combination meter
Room lamp timer• Key switch
• Remote keyless entry receiver (keyfob)
• Main power window and door lock/unlock switch
• Front door lock assembly LH (key cylinder switch)
• All door switchesInterior room lamp
Key warning chime• Key switch
• Front door switch LHCombination meter (warning buzz-
er)
Light warning chime• Combination switch
• Key switch
• Front door switch LHCombination meter (warning buzz-
er)
Vehicle-speed-sensing intermittent wip-
er• Combination switch
• Combination meterIPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Air conditioner switch signal Front air control ECM
Blower fan switch signal Front air control ECM
Low tire pressure warning system Remote keyless entry receiver• Combination meter
• Display control unit
Trailer tow (if equipped) Combination switch Trailer turn signal relays
Vehicle security system• Remote keyless entry receiver (keyfob)
• Main power window and door lock/unlock switch
• Power window and door lock/unlock switch RH
• Front door lock assembly LH (key cylinder switch)
• All door switches
• Back door latch (door ajar switch)• IPDM E/R
• Security indicator lamp System Input Output

BCM (BODY CONTROL MODULE)
BCS-11
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Terminal and Reference Value for BCMINFOID:0000000003533600
Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
1BR/WIgnition keyhole illumi-
nationOutput OFFDoor is locked (SW OFF) Battery voltage
Door is unlocked (SW ON) 0V
2SBCombination switch
input 5Input ONLighting, turn, wiper OFF
Wiper dial position 4
3G/YCombination switch
input 4Input ONLighting, turn, wiper OFF
Wiper dial position 4
4YCombination switch
input 3Input ONLighting, turn, wiper OFF
Wiper dial position 4
5G/BCombination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6VCombination switch
input 1
9Y/BRear window defogger
switchInput ONRear window defogger switch
ON0V
Rear window defogger switch
OFF5V
10 G Hazard lamp flash Input OFFON (opening or closing) 0V
OFF (other than above) Battery voltage
11 OIgnition switch (ACC
or ON)InputACC or
ONIgnition switch ACC or ON Battery voltage
12 R/L Front door switch RH Input OFFON (open) 0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFFON (open) 0V
OFF (closed) Battery voltage
15 L/WTire pressure warning
check connectorInput OFF — 5V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

BCS-12
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
18 PRemote keyless entry
receiver and optical
sensor (ground)Output OFF — 0V
19 V/WRemote keyless entry
receiver (power sup-
ply)Output OFF Ignition switch OFF
20 G/WRemote keyless entry
receiver signal (Sig-
nal)Input OFFStand-by (keyfob buttons re-
leased)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 G NATS antenna amp. InputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
22 W/V BUS — —Ignition switch ON or power
window timer operates
23 G/OSecurity indicator
lampOutput OFFGoes OFF → illuminates (Ev-
ery 2.4 seconds)Battery voltage → 0V
25 BR NATS antenna amp. InputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 Y/LRear wiper auto stop
switch 2Input ONRise up position (rear wiper
arm on stopper)0V
A Position (full clockwise stop
position)0V
Forward sweep (counterclock-
wise direction)Fluctuating
B Position (full counterclock-
wise stop position)Battery voltage
Reverse sweep (clockwise di-
rection)Fluctuating Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
LIIA1893E
LIIA1894E
LIIA1895E
PIIA2344E

BCM (BODY CONTROL MODULE)
BCS-13
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27 W/RCompressor ON sig-
nalInput ONA/C switch OFF 5V
A/C switch ON 0V
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/BR Glass hatch switch Input OFFGlass hatch switch released
→ Glass hatch switch pressedBattery voltage → 0V
32 R/GCombination switch
output 5Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 R/YCombination switch
output 4Output ONLighting, turn, wiper OFF
Wiper dial position 4
34 LCombination switch
output 3Output ONLighting, turn, wiper OFF
Wiper dial position 4
35 O/BCombination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 R/WCombination switch
output 1
37 B/RKey switch and key
lock solenoidInput OFFKey inserted Battery voltage
Key removed 0V
38 W/L Ignition switch (ON) Input ON — Battery voltage
39 L CAN-H — — — —
40 P CAN-L — — — —
42 GRGlass hatch ajar
switchInput ONGlass hatch open 0
Glass hatch closed Battery
43 R/BBack door latch (door
ajar switch)Input OFFON (open) 0V
OFF (closed) Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

BCS-14
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
44 ORear wiper auto stop
switch 1Input ONRise up position (rear wiper
arm on stopper)0V
A Position (full clockwise stop
position)Battery voltage
Forward sweep (counterclock-
wise direction)Fluctuating
B Position (full counterclock-
wise stop position)0V
Reverse sweep (clockwise di-
rection)Fluctuating
47 SB Front door switch LH Input OFFON (open) 0V
OFF (closed) Battery voltage
48 R/Y Rear door switch LH Input OFFON (open) 0V
OFF (closed) Battery voltage
49 R Cargo lamp Output OFFAny door open (ON) 0V
All doors closed (OFF) Battery voltage
51 Y/BTrailer turn signal
(right)Output ON Turn right ON
52 G/B Trailer turn signal (left) Output ON Turn left ON
53 L/WGlass hatch lock actu-
atorInput OFFGlass hatch switch released
→ Glass hatch switch pressed0V → Battery voltage for 300
msec.
54 YRear wiper output cir-
cuit 2Input ONRise up position (rear wiper
arm on stopper)0V
A Position (full clockwise stop
position)0V
Forward sweep (counterclock-
wise direction)0V
B Position (full counterclock-
wise stop position)Battery voltage
Reverse sweep (clockwise di-
rection)Battery voltage
55 SBRear wiper output cir-
cuit 1Output ONOFF 0
ON Battery voltage
56 R/G Battery saver output OutputOFF30 minutes after ignition
switch is turned OFF0V
ON — Battery voltage
57 Y/R Battery power supply Input OFF — Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
SKIA3009J
SKIA3009J

BCM (BODY CONTROL MODULE)
BCS-15
< SERVICE INFORMATION >
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BCM Power Supply and Ground Circuit InspectionINFOID:0000000003533601
1.CHECK FUSES AND FUSIBLE LINK
• Check 50A fusible link (letter f, located in the fuse and fusible link box).
• Check 10A fuse [No. 4, located in the fuse block (J/B)] and 15A fuse [No. 22, located in the fuse block (J/B)].
58 W/R Optical sensor Input ONWhen optical sensor is illumi-
nated3.1V or more
When optical sensor is not illu-
minated0.6V or less
59 GFront door lock as-
sembly LH actuator
(unlock)Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
60 G/B Turn signal LH Output ON Turn left ON
61 G/Y Turn signal RH Output ON Turn right ON
62 R/W Step lamp LH and RH Output OFFON (any door open) 0V
OFF (all doors closed) Battery voltage
63 LInterior room/map
lampOutput OFFAny door
switchON (open) 0V
OFF (closed) Battery voltage
65 VAll door lock actuators
(lock)Output OFFOFF (neutral) 0V
ON (lock) Battery voltage
66 G/YFront door lock actua-
tor RH, rear door lock
actuators LH/RH and
back door lock actua-
tor (unlock)Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
67 B Ground Input ON — 0V
68 W/LPower window power
supply (RAP)Output —Ignition switch ON Battery voltage
Within 45 seconds after igni-
tion switch OFFBattery voltage
More than 45 seconds after ig-
nition switch OFF0V
When front door LH or RH is
open or power window timer
operates0V
69 W/RPower window power
supplyOutput — — Battery voltage
70 W/B Battery power supply Input OFF — Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
SKIA3009J
SKIA3009J