2008 NISSAN LATIO door lock

AUDIO
AV-21
< SERVICE INFORMATION >
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and M45 first followed by M43 last. If the subwoofer is inoperative, be sure to check this condition. Refer to AV-
34, "Sound Is Not Heard from Subwoofer (Premium System)" .
• The majority of the audio malfunctions are the result of outside causes (damaged CD, electromagnetic inter-
ference, etc.). Check the symptoms below to diagnose the malfunction.
• The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and oper-
ation of each piece of electrical equipment, and then determine the cause.
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.
• Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
• Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves that reflect off of mountains or buildings.
Noise InspectionINFOID:0000000001704662
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Symptom Check item
Audio system does not work properly.• Audio unit power supply circuit. Refer to AV- 2 2 , "
Power Supply
Circuit Inspection" .
• Audio unit. Refer to "Trouble Diagnosis" .
No sound can be heard from all speakers. Audio unit. Refer to "Trouble Diagnosis" .
No sound can be heard from one or several speakers.• Open or short in audio signal circuit between audio unit and front
speaker. Refer to AV- 2 9 , "
Sound Is Not Heard from Front Door
Speaker (Base System)" or AV- 3 1 , "Sound Is Not Heard from
Front Door Speaker or Tweeter (Mid Level and Premium Sys-
tem)" .
• Front speaker. Refer to AV- 2 9 , "
Sound Is Not Heard from Front
Door Speaker (Base System)" or AV- 3 1 , "Sound Is Not Heard
from Front Door Speaker or Tweeter (Mid Level and Premium
System)" .
• Open or short in audio signal circuit between audio unit and rear
speaker. Refer to AV- 3 0 , "
Sound Is Not Heard from Rear Door
Speaker (Base System)" or AV- 3 2 , "Sound Is Not Heard from
Rear Door Speaker (Mid Level and Premium System)" .
• Rear speaker. Refer to AV- 3 0 , "
Sound Is Not Heard from Rear
Door Speaker (Base System)" or AV- 3 2 , "Sound Is Not Heard
from Rear Door Speaker (Mid Level and Premium System)" .
• Tweeter (mid level and premium system) AV- 3 1 , "
Sound Is Not
Heard from Front Door Speaker or Tweeter (Mid Level and Pre-
mium System)" or AV- 3 2 , "Sound Is Not Heard from Rear Door
Speaker (Mid Level and Premium System)" .
• Subwoofer (premium system). Refer to AV- 3 4 , "
Sound Is Not
Heard from Subwoofer (Premium System)" .
• Audio unit. Refer to AV- 2 2 , "
Power Supply Circuit Inspection" .
No sound can be heard from radio or noise is heard.• Antenna feeder. Refer to AV- 4 1
.
• Antenna. Refer to AV- 4 1
.
• Audio unit. Refer to AV- 2 2 , "
Power Supply Circuit Inspection" .

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 (without Intelligent Key)
- Key switch and ignition knob switch (with Intelligent Key)
- Hazard switch
- Door lock/unlock switch
- Front door switch (LH, RH)
- Rear door switch (LH, RH)
- Back door lock assembly (Hatchback)
- Trunk key cylinder switch (Sedan)
- Trunk lamp switch and trunk release solenoid (Sedan)
- Combination switch (passing, lighting switch 1st position, front fog lamp)
- Keyfob (lock/unlock signal)
- Front door key cylinder switch LH
• 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-22 .
• Remote keyless entry system. Refer to BL-51
.
• Power window system. Refer to GW-18
. NOTE
• Sunroof system. Refer to RF-10. NOTE
• Room lamp timer. Refer to LT- 8 9 .
• Rear wiper and washer system. Refer to WW-24
.
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
• Panic system. Refer to BL-51 .
• Vehicle security (theft warning) system. Refer to BL-187
.
• NVIS(NATS) system. Refer to BL-210
.
• Headlamp, tail lamp and battery saver control systems. Refer to LT- 7 2
, LT- 4 or LT- 2 5 .
• Front fog lamp. Refer to LT- 3 9
.
• Front wiper and washer system. Refer to WW-3
.
• Rear window defogger system. Refer to GW-49
.
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
• Warning chime. Refer to DI-41 .
• Turn signal and hazard warning lamps. Refer to LT- 4 8
.
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
• Intelligent Key system. Refer to BL-74 .
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote keyless entry systemRemote keyless entry receiver
(keyfob)• All door locking actuators
• Turn signal lamp (LH, RH)
• Combination meter (turn signal lamp)
Intelligent Key system Intelligent Key unit• All door locking actuators
• Turn signal lamp (LH, RH)
• Combination meter (turn signal lamp)
Power door lock systemFront power door lock/unlock
switch (LH, RH)All door locking actuators
Power supply (IGN/RAP) to power
windowIgnition retained power supply Power supply to power window and sunroof system
Power supply (BAT) to power window Battery power supply Power supply to power window and sunroof system

BCM (BODY CONTROL MODULE)
BCS-7
< SERVICE INFORMATION >
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CAN Communication System DescriptionINFOID:0000000001704585
Refer to LAN-6, "System Description".
Panic alarm• Key switch
•KeyfobIPDM E/R
Vehicle security system• All door switches
•Keyfob
• Door lock/unlock switch
• Trunk key cylinder switch (Se-
dan)
• Front door key cylinder switch
LH• IPDM/ER
• Security indicator lamp
Battery saver control• Ignition switch
• Combination switchIPDM E/R
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
•Keyfob
• Main power window and door
lock/unlock switch
• Front door switch LH
• All door switchInterior room lamp
Back door switch signal (Hatchback) Back door lock assembly Luggage room lamp
Back door lock signal (Hatchback) Back door lock assembly Back door opener
Trunk lamp switch signalTrunk lamp switch and trunk re-
lease solenoidLuggage room lamp
Trunk lid opener signalTrunk lamp switch and trunk re-
lease solenoidTrunk lid opener
Key warning chime• Key switch
• Front door switch LHCombination meter (warning buzzer)
Light warning chime• Combination switch
• Key switch
• Front door switch LHCombination meter (warning buzzer)
Seat belt warning chime• Seat belt buckle switch LH
• Ignition switchCombination meter (warning buzzer)
Front wiper and washer system• Combination switch
• Ignition switchIPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Rear wiper and washer system• Combination switch
• Ignition switchRear wiper motor
A/C switch signal Front air control ECM
Blower fan switch signal Front air control ECM
A/C indicator signal Front air control A/C indicator
Low tire pressure warning system Remote keyless entry receiver Combination meterSystem Input Output

BCM (BODY CONTROL MODULE)
BCS-11
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000001704588
Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
2BRCombination switch
input 5Input ONLighting, turn, wiper OFF
Wiper dial position 4
3GRCombination switch
input 4Input ONLighting, turn, wiper OFF
Wiper dial position 4
4LCombination switch
input 3Input ONLighting, turn, wiper OFF
Wiper dial position 4
5GCombination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6VCombination switch
input 1
7BRFront door key cylin-
der switch LH (unlock)Input
OFFON (open, 2nd turn) Momentary 1.5V
OFF (closed) 0V
8YFront door key cylin-
der switch LH (lock)InputOn (open) Momentary 1.5V
OFF (closed) 0V
9WRear window defogger
switchInput ONRear window defogger switch
ON0V
Rear window defogger switch
OFF5V
11 LIgnition switch (ACC
or ON)InputACC or
ONIgnition switch ACC or ON Battery voltage
12 SB 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 WTire pressure warning
check connectorInput OFF — 5V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

BCM (BODY CONTROL MODULE)
BCS-13
< SERVICE INFORMATION >
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30*1VBack door/trunk out-
putOutput —Back door open (switch
closed)0V
Back door closed (switch
open)5V
30
*2VBack door opener
switchInput —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
30
*3VTrunk lid opener
switchInput —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
32 LGCombination switch
output 5Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 YCombination switch
output 4Output ONLighting, turn, wiper OFF
Wiper dial position 4
34 VCombination switch
output 3Output ONLighting, turn, wiper OFF
Wiper dial position 4
35 RCombination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 PCombination switch
output 1
37 G Key switch Input OFFKey inserted Battery voltage
Key removed 0V
38 W Ignition switch (ON) Input ON — Battery voltage
39 L CAN-H — — — —
40 P CAN-L — — — —
41
*5WTrunk key cylinder
switchInput —ON (Full unlock position) 0V
OFF (Neutral position) 5V
42 Y Trunk lamp switch Input OFFON (trunk open) 0V
OFF (trunk closed) Battery voltage
43 R Back door 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 LG Rear wiper auto stop Input ONRear wiper operating 0
Rear wiper stopped Battery
45 GR Lock switch Input OFFON (lock) 0V
OFF Battery voltage
46 L Unlock switch Input OFFON (unlock) 0V
OFF Battery voltage
47 BR Front door switch LH Input OFFON (open) 0V
OFF (closed) Battery voltage
48 O Rear door switch LH Input OFFON (open) 0V
OFF (closed) Battery voltage
49 P Luggage room lamp Output OFFAny door open (ON) 0V
All doors closed (OFF) Battery voltage
50 SB A/C indicator Output ONA/C OFF 0
A/C ON Battery voltage
53
*4RBack door lock assem-
bly (actuator)Output OFF Back door (open) Battery voltage
53
*5RTrunk lamp switch and
trunk release solenoidOutput OFF Trunk lid (open) Battery voltage
55 VRear wiper motor out-
putOutput ONOFF 0
ON Battery voltage
56 R Battery saver output OutputOFF30 minutes after ignition
switch is turned OFF0V
ON — Battery voltage
57 LG Battery power supply Input OFF — Battery voltage
59 GFront door lock actua-
tor LH (unlock)Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
60 V Turn signal (left) Output ON Turn left ON
61 W Turn signal (right) Output ON Turn right ON
63 BR Interior room lamp Output OFFAny door
switchON (open) 0V
OFF (closed) Battery voltage
65 SBAll door lock actuators
(lock)Output OFFOFF (neutral) 0V
ON (lock) 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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*1: With Intelligent Key
*2: Hatchback without Intelligent Key
*3: Sedan without Intelligent Key
*4: Hatchback
*5: Sedan
BCM Power Supply and Ground Circuit InspectionINFOID:0000000001704589
1.CHECK FUSES AND FUSIBLE LINK
• Check 40A fusible link (letter g , located in the fuse and fusible link box).
• Check 10A fuses [No. 6, 8 and 20, located in the fuse block (J/B)].
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3 .
2.CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connectors and ground.
OK or NG
66 GFront door lock actua-
tor RH, rear door lock
actuators LH/RH (un-
lock)Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
67 B Ground Input ON — 0V
68 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 P Battery power supply Output OFF — Battery voltage
70 Y 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
ConnectorTe r m i n a l s
Power
sourceConditionVoltage (V) (Ap-
prox.)
(+) (-)
M1811 GroundACC
power
supplyIgnition
switch
ACC or
ONBattery voltage
38 GroundIgnition
power
supplyIgnition
switch ON
or STARTBattery voltage
M2057 GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
70 GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
LIIA2415E

BCS-16
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
OK >> GO TO 3.
NG >> Repair or replace the harness.
3.CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
CONSULT-III Function (BCM)INFOID:0000000001704590
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
ITEMS OF EACH PART
NOTE:
CONSULT-III will only display systems the vehicle possesses.67 - Ground : Continuity should exist.
LIIA0915E
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT
MNTRThe results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
System and itemCONSULT-III dis-
playDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG RE-
SULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERAC-
TIVE
TESTCON-
FIGU-
RATION
BCM BCM×× × × ×
Power door lock sys-
temDOOR LOCK×××
Rear defoggerREAR DEFOG-
GER××
Warning chime BUZZER××
Room lamp timer INT LAMP×××
Remote keyless entry
systemMULTI REMOTE
ENT×××
Headlamp HEAD LAMP×××
Wiper WIPER×××
Turn signal lamp
Hazard lampFLASHER××