horn NISSAN LATIO 2008 Service Owner's Manual

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-197
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Trouble DiagnosisINFOID:0000000001704091
WORK FLOW
• For “POWER DOOR LOCK SYSTEM” diagnosis, refer to BL-22.
• For "INTELLIGENT KEY SYSTEM” diagnosis, refer to BL-74
.
• For “REMOTE KEYLESS ENTRY SYSTEM” diagnosis, refer to BL-51
.
Preliminary CheckINFOID:0000000001704092
1.CHECK BCM CONFIGURATION
Confirm BCM configuration for "THEFT ALARM" is set to "WITH". Refer to BCS-17, "
Configuration".
OK or NG
OK >> Proceed with the preliminary check to verify system operation.
NG >> Change BCM configuration for "THEFT ALARM" to "WITH". Refer to BCS-17, "
Configuration".
Test Item Description
THEFT INDThis test is able to check security indicator lamp operation. The lamp will be turned on when “ON”
on CONSULT-III screen is touched.
VEHICLE SECURITY HORNThis test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after “ON” on CONSULT-III screen is touched.
HEADLAMP (HI)This test is able to check vehicle security lamp operation. The headlamps will be activated for 0.5
seconds after “ON” on CONSULT-III screen is touched.
LIIA2635E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-199
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Symptom ChartINFOID:0000000001704093
SYMPTOM PROCEDURE Diagnostic procedure
1Vehicle security
system cannot be
set by ····AII itemsDiagnostic Procedure 1 (Door switch check) (Hatchback)
Refer to BL-200, "
Diagnosis Procedure 1".
Diagnostic Procedure 7 (Door switch check) (Sedan)
Refer to BL-204, "
Diagnosis Procedure 7".
Diagnostic Procedure 8 (Trunk switch check) (Sedan)
Refer to BL-206, "
Diagnosis Procedure 8".
If the above systems are “OK”, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
Lock/unlock switchDiagnostic Procedure 6 (Door lock/unlock switch check)
Refer to BL-204, "
Diagnosis Procedure 6".
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-18
.
Door outside key (driver)Diagnostic Procedure 3 (Door key cylinder switch check)
Refer to BL-204, "
Diagnosis Procedure 3".
If the above systems are “OK”, check main power window and door lock/un-
lock switch. Refer to GW-18
.
Intelligent keyCheck Intelligent Key entry function. Refer to BL-76, "
System Description"
If the above systems are “OK”, replace BCM. Refer to BCS-18, "Removal
and Installation of BCM".
Keyfob (without Intelligent Key)Check remote keyless entry function. Refer to BL-58, "
Preliminary Check".
If the above systems are “OK”, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
2Security indicator
does not turn
“ON”.Security indicator lampDiagnostic Procedure 2 (Security indicator lamp check)
Refer to BL-203, "
Diagnosis Procedure 2".
If the above systems are “OK”, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
3*1 Vehicle security
system does not
alarm when ····Any door or trunk is opened.Diagnostic Procedure 1 (Door switch check) (hatchback)
Refer to BL-200, "
Diagnosis Procedure 1".
Diagnostic Procedure 7 (Door switch check) (Sedan)
Refer to BL-204, "
Diagnosis Procedure 7".
Diagnostic Procedure 8 (Trunk switch check) (Sedan)
Refer to BL-206, "
Diagnosis Procedure 8".
If the above systems are “OK”, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".
4Vehicle security
alarm does not ac-
tivate.Horn alarmDiagnostic Procedure 4 (Vehicle security horn alarm check).
Refer to BL-204, "
Diagnosis Procedure 4".
If the above systems are “OK”, check horn system.
Refer to WW-37
.
Head lamp alarmDiagnostic Procedure 5 (Head lamp alarm check).
Refer to BL-204, "
Diagnosis Procedure 5".
If the above systems are “OK”, replace BCM. Refer to BCS-18, "
Removal
and Installation of BCM".

BL-204
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
3. Check continuity between BCM connector (A) M18 terminal 23
and combination meter connector (B) M24 terminal 18.
4. Check continuity between BCM connector (A) M18 terminal 23
and ground.
OK or NG
OK >> Check the following:
• 10A fuse [No. 13, located in fuse block (J/B)]
• Harness for open or short between combination meter and fuse
NG >> Repair or replace harness.
Diagnosis Procedure 3INFOID:0000000001704096
1.FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH) CHECK
Check front door lock assembly LH (key cylinder switch) with key.
Do doors lock/unlock when using the key?
YES >> Front door lock assembly LH (key cylinder switch) is OK.
NO >> Check front door lock assembly LH (key cylinder switch) circuit. Refer to BL-47, "
Front Door Key
Cylinder Switch LH Check".
Diagnosis Procedure 4INFOID:0000000001704097
VEHICLE SECURITY HORN ALARM CHECK
1.CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
YES >> Check harness for open or short between IPDM E/R and horn relay.
NO >> Check horn circuit. Refer to WW-37
.
Diagnosis Procedure 5INFOID:0000000001704098
VEHICLE SECURITY HEADLAMP ALARM CHECK
1.CHECK VEHICLE SECURITY HEADLAMP ALARM OPERATION
Check if headlamps operate with lighting switch.
Do headlamps come on when turning switch ON?
YES >> Headlamp alarm is OK.
NO >> Check headlamp system. Refer to LT- 4
or LT- 2 5.
Diagnosis Procedure 6INFOID:0000000001704099
DOOR LOCK/UNLOCK SWITCH CHECK
1.CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
Check if power door lock operates with door lock/unlock switch.
Do doors lock/unlock when using each door lock/unlock switch?
YES >> Door lock/unlock switch is OK.
NO >> Refer to BL-42, "
Door Lock and Unlock Switch Check".
Diagnosis Procedure 7INFOID:0000000001704100
DOOR SWITCH CHECK (SEDAN)
23 - 18 : Continuity should exist.
23 - Ground : Continuity should not exist.
WIIA1269E

RADIATOR
CO-13
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Checking Radiator CapINFOID:0000000001702533
• Check valve seat of radiator cap.
- Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
- Check if valve seat has no soil and damage.
• Pull negative-pressure valve to open it, and make sure that it is
completely closed when released.
- Make sure that there is no dirt or damage on the valve seat of radi-
ator cap negative-pressure valve.
- Make sure that the valve operates properly in the opening and
closing conditions.
• Check radiator cap relief pressure using Tool.
- When connecting the radiator cap to the tester, apply water or
coolant to the cap seal surface.
- Replace the radiator cap if there is an abnormality in the negative-
pressure valve, or if the open-valve pressure is outside of the standard values.
• Replace radiator cap if there it does not comply to specifications to the above three checks.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorINFOID:0000000001702534
Check radiator for mud or clogging. If necessary, clean radiator as follows.
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator shroud
and horns. Then tape harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.
• Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm
2, 71 psi) and keep distance more than 30 cm
(11.8 in).
5. Blow air again into all the radiator core surfaces once per minute until no water sprays out.
PBIC2816E
SMA967B
Tool number : EG17650301 (J-33984-A)
Standard: 78 – 98 kPa (0.78 - 0.98 bar, 0.8 – 1.0 kg/cm
2, 11
– 14 psi)
Limit: 59 kPa (0.59 bar, 0.6 kg/cm
2, 9 psi)
WBIA0570E

LAN-24
< FUNCTION DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
Engine coolant temperature signal T R
Engine speed signal T R R
Engine status signal T R
Fuel consumption monitor signal T R
Malfunction indicator lamp signal T R
Wide open throttle position signal T R R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signalTR
TR
Day time running light request signal
*3TR R
Door lock/unlock status signal T R
Door switch signal T R R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Ignition switch signal T R
Low beam request signal T R
Position lights request signal T R R
Rear window defogger switch signal T R
Sleep/wake up signalRT
TRR R
Theft warning horn request signal T R
Tire pressure signal
*4TR
Trunk open/close status signal T R
Turn indicator signal T R
EPS operation signal R T
EPS warning lamp signal T R
Door lock/unlock/trunk open request signal R T
Hazard request signal R T
Ignition knob switch signal R T
KEY warning lamp signal T R
LOCK warning lamp signal T R
Panic alarm request signal R T
Fuel level sensor signal R T
Overdrive control switch signal T R R
P/N range signal T R
Stop lamp switch signal T R R
Vehicle speed signalRRR T
RRRT R
R
*5R*5T*5
ABS warning lamp signal R TSignal name/Connecting unit
ECM
BCM
EPS
I-KEY
M&A
ABS
TCM
*1
TCM
*2
IPDM-E

PG-16
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
System DescriptionINFOID:0000000001704697
• IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relays via IPDM E/R control cir-
cuits.
• IPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control, oil
pressure switch signal reception, etc.
• It controls operation of each electrical component via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using CAN communication lines, it receives signals from the BCM and controls the following lamps:
• Headlamps (High, Low)
• Parking lamps
• Tail and license plate lamps
• Front fog lamps
2. Wiper control
Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Rear window defogger relay control
Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger
relay.
4. A/C compressor control
Using CAN communication lines, it receives signals from the ECM and controls the A/C compressor
(magnet clutch).
5. Starter control
Using CAN communication lines, it receives signals from the BCM and controls the starter relay.
6. Cooling fan control
Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
7. Horn control
Using CAN communication lines, it receives signals from the BCM and controls the horn relay.
8. Daytime light system control (Canada only)
Using CAN communication lines, it receives signals from the BCM and controls the daytime light relay.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L-line, CAN
H-line), it is possible to transmit a maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
1. Fail-safe control
• When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication returns to normal operation, it also returns to normal control.
• Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Controlled system Fail-safe mode
Headlamp• With the ignition switch ON, headlamp low relay is ON, headlamp high relays are OFF, and
daytime light system (Canada only) is OFF.
• With the ignition switch OFF, the headlamp relays are OFF.
Tail, license plate and parking lamps • With the ignition switch ON, the tail lamp relay is ON.
• With the ignition switch OFF, the tail lamp relay is OFF.
Cooling fan• With the ignition switch ON, cooling fan relay-1, relay-2, and relay-3 are ON.
• With the ignition switch OFF, all cooling fan relays are OFF.
Front wiperUntil the ignition switch is turned off, the front wiper relays remain in the same status they
were in just before fail−safe control was initiated.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-19
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*1 Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC position, display may not be cor-
rect.
*2 This item is displayed, but does not function.
CAN DIAG SUPPORT MNTR
Refer to LAN-8 .
ACTIVE TEST
Display Item List
Auto Active TestINFOID:0000000001704701
DESCRIPTION
• In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems:
- Rear window defogger
- Front wipers
- Tail, license and parking lamps
- Daytime lamp system (Canada only)
- Front fog lamps
- Headlamps (High, Low)
- A/C compressor (magnet clutch)
- Cooling fan
OPERATION PROCEDURE
1. Close hood and front door RH, and lift wiper arms away from windshield (to prevent glass damage by
wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON and, within 20 seconds, press front door switch LH 20 times. Then turn ignition
switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once.
6. After a series of operations is repeated three times, auto active test is completed.
Theft warning
horn requestTHFT HRN REQ ON/OFF X X Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF X X Output status of IPDM E/R
Daytime light re-
questDTRL REQ ON/OFF X X Signal status input from BCM Item nameCONSULT-III
screen display Display or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Test name CONSULT-III screen display Description
Head, tail, fog lamp output EXTERNAL LAMPSWith a certain ON-OFF operation (OFF, TAIL, LO, HI, FOG), the front
fog lamp, headlamp low, headlamp high RH, headlamp high LH, and
tail lamp relays can be operated.
Rear defogger output REAR DEFOGGERWith a certain ON-OFF operation, the rear defogger relay can be oper-
ated.
Front wiper (HI, LO) output FRONT WIPERWith a certain operation (OFF, HI ON, LO ON), the front wiper relays
(Lo, Hi) can be operated.
Cooling fan output MOTOR FANWith a certain operation (1, 2, 3, 4), the cooling fan relays can be oper-
ated.
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.

PG-24
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
24 Y Cooling fan relay-3 Output —Conditions correct for cooling
fan high operationBattery voltage
Conditions not correct for
cooling fan high operation0V
26 OTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
27 BRTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
28 GRTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
29 PTail lamp relay (park-
ing lamps)Output — Lighting switch in 2nd position Battery voltage
30
(A/T
only)R Fuse 54 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
31 O Fuse 55 Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
32 LWiper high speed sig-
nalOutputON or
STARTWiper switchOFF, LO, INT 0V
HI Battery voltage
33 YWiper low speed sig-
nalOutputON or
STARTWiper switchOFF 0V
LO or INT Battery voltage
35 BRStarter relay (inhibit
switch)InputON or
STARTSelector lever in "P" or "N"
(CVT or A/T) or clutch pedal
depressed (M/T)Battery voltage
Selector lever any other posi-
tion (CVT or A/T) or clutch
pedal released (M/T)0V
36 BR Fuel pump relay Output —Ignition switch ON or START Battery voltage
Ignition switch OFF or ACC 0V
37 G Oil pressure switch InputON or
STARTEngine running and oil pres-
sure within specificationBattery voltage
Engine not running or oil pres-
sure below specification0V
38 R Wiper auto stop signal InputON or
STARTWipers not in park position Battery voltage
Wipers in park position 0V
39 B Ground Input — — 0V
40 P CAN-L — ON — —
41 L CAN-H — ON — —
45 R Horn relay control Input —Horn switch PUSHED, alarm
switch activated or door lock/
unlock is confirmed when op-
erating lock system via the
keyfob0V
Horn switch released, alarm
not active, keyfob not activeBattery voltage
46 YThrottle control motor
relay controlInput —Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage
47 GRFuel pump relay con-
trolInput —
Ignition switch ON or START 0V
Ignition switch OFF or ACC Battery voltage Te r m i n a lWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition

HARNESS
PG-41
< SERVICE INFORMATION >
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C3 E6 — : Fuse and fusible link box D3 E53 B/2: Front combination lamp LH
(parking)
B1 E7 SMJ : To M69
D3 E8 SMJ : To F8
B4 E9 BR/2 : Fusible link box (battery)
B3 E10 GR/2 : Fusible link box (battery)
B1 E11 B/2 : To M78
A3 E12 B/6 : Accelerator pedal position sensor
A2 E13 B/2 : Stop lamp switch (with M/T)
A2 E13 W/4 : Stop lamp switch (without M/T)
D3 E14 — : Engine ground (crash zone sensor)
C2 E15 — : Engine ground
B2 E16 B/32 : ECM
C5 E18 B/1 : Horn (low)
C4 E19 GR/6 : To F33
D5 E20 B/1 : Horn (low)
D3 E25 B/3: Front combination lamp LH
(headlamp)
E4 E27 B/2 : Front fog lamp LH
D4 E29 B/2: Front combination lamp LH
(turn signal)
B1 E31 W/24 : TCM
B1 E32 GR/24 : TCM
A2 E34 BR/2 : Clutch interlock switch (with M/T)
A2 E35 BR/2 : ASCD clutch switch
A2 E36 BR/2 : ASCD brake switch
B4 E40 GR/2 : Brake fluid level switch
D3 E42 B/2: IPDM E/R (Intelligent Power Distribu-
tion Module Engine Room)
C3 E43 W/16: IPDM E/R (Intelligent Power Distribu-
tion Module Engine Room)
C3 E44 W/6: IPDM E/R (Intelligent Power Distribu-
tion Module Engine Room)
D3 E45 BR/12: IPDM E/R (Intelligent Power Distribu-
tion Module Engine Room)
D3 E46 W/12: IPDM E/R (Intelligent Power Distribu-
tion Module Engine Room)

HARNESS
PG-43
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E4 E17 B/3 : Refrigerant pressure sensor D2 E38 L/5 : Daytime light relay 2
E5 E21 B/1 : Horn (high) E2 E41 — : Ground (ABS)
E5 E22 B/1 : Horn (high) C3 E50 W/2 : Washer fluid level switch
D2 E24 — : Engine ground D1 E52 B/2 : Front wheel sensor RH
C3 E26 B/3: Front combination lamp RH
(headlamp)D2 E54 B/2: Front combination lamp RH
(parking)
C4 E28 B/2 : Front fog lamp RH