2009 NISSAN LATIO window

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WARNING LAMP FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-115, " Trouble Diagnosis Procedure " .
• If the following “symptoms” are detected, check syst ems shown in the “Diagnosis/service procedure” column
in this order.
OFF position warning
chime/buzzer (for ex-
ternal) does not oper-
ate. Both Intelligent Key
warning chime and
buzzer do not oper-
ate. 1. Check ignition switch position.
BL-1502. Check ignition knob switch.
BL-1293. Check key switch.
BL-1274. Check Intelligent Key warning chime.
BL-1565. Check Intelligent Ke
y warning buzzer(s). BL-142 6. Replace Intelligent Key unit.
BL-158Intelligent Key warn-
ing buzzer does not
operate. Check Intelligent Key warning buzzer(s).
BL-142Take away warning
chime/buzzer (door
open to close) does
not operate. Both Intelligent Key
warning chime and
buzzer do not oper-
ate. 1. Check door switch (hatchback).
BL-1312. Check door switch (sedan).
BL-1343. Check inside key antenna.
BL-1464. Check key switch.
BL-1275. Check Intelligent Key warning chime.
BL-1426. Check Intelligent Ke
y warning buzzer(s). BL-142 7. Replace Intelligent Key unit.
BL-158Intelligent Key warn-
ing buzzer does not
operate. Check Intelligent Key warning buzzer(s).
BL-142Take away warning chime (through window)
does not operate. 1.
Check “TAKE OUT FROM WINDOW WARN” setting in
“WORK SUPPORT”. BL-1172. Check inside key antenna.
BL-1463. Check key switch.
BL-1274. Check Intelligent Key battery.
BL-1585. Check Intelligent Key warning chime.
BL-1566. Replace Intelligent Key unit.
BL-158Door lock operation warning buzzer does not
operate. 1. Check door switch (hatchback).
BL-1312. Check door switch (sedan).
BL-1343. Check ignition knob switch.
BL-1294. Check door request switch.
BL-1355. Check back door request switch (hatchback).
BL-1376. Check trunk opener request switch (sedan).
BL-1387. Check outside key antenna (driver side and passenger side).
BL-1438. Check outside key antenna (rear bumper).
BL-1449. Check inside key antenna.
BL-14610. Check Intelligent Key warning buzzer(s).
BL-14211. Replace Intelligent Key unit.
BL-158One warning buzzer does not operate (se-
dan). Check Intelligent Key warning buzzer(s).
BL-142Symptom Diagnosis/service procedure Reference page

Removal and Installation " .
2. Fully close front door window.
3. Remove the front door sealing screen. NOTE:
If sealing screen is reused, cut butyl tape in a way that leaves it on the sealing screen.
4. Remove front door rear glass run channel. Refer to GW-44, " Removal and Installation " .
5. Remove the cables from the holder.
6. Remove inside handle bolt, and slide the handle toward the rear of the vehicle.
7. Disengage the handle from the door panel, and remove the inside handle. 1. Front door 2. Inside handle 3. Inside handle cable
4. Door lock assembly 5. Outside handle cable 6. TORX bolt (T30)
7. Key cylinder connecting rod 8. Grommet 9. TORX bolt (T30)
10. Rear gasket 11. Door key cylinder assembly (Driver's side)
Outside handle escutcheon
(passenger's side) 12. Outside handle
13. Front gasket 14. Lock knob cable 15. Holder
16. Outside handle bracket PIIB6524E

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REAR DOOR LOCK
Component Parts Location INFOID:0000000004305081
Removal and Installation INFOID:0000000004305082
REMOVAL 1. Remove the partition glass. Refer to GW-48 .
2. Support door glass while lifting it up to the door window completely closed position.
3. Remove inside handle bolt, slide handle toward rear of vehicle, disconnect it from the door panel, and remove the inside handle.
4. Disconnect the inside handle and lock knob cables from the inside handle.
CAUTION:
During removal and installation, do not to bend the ends of
the lock knob cable and inside handle cable.
1. Rear door 2. Inside handle 3. Inside handle cable
4. Door lock assembly 5. TORX bolt (T30) 6. Outside handle cable
7. Grommet 8. TORX bolt (T30) 9. Rear gasket
10. Outside handle escutcheon 11. Outside handle 12. Front gasket
13. Lock knob cable 14. Outside handle bracket PIIB6525E

BACK DOOR LOCK
BL-175
< SERVICE INFORMATION >
C
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F
G H
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M A
B BL
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Terminal and Reference Value for BCM
INFOID:0000000004678868
Terminal Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
2 BR Combination switch
input 5 Input ONLighting, turn, wiper OFF
Wiper dial position 4
3 GR Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4 L Combination switch
input 3 Input ONLighting, turn, wiper OFF
Wiper dial position 4
5 G Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6 V Combination switch
input 1
7 7
BRFront door key cylin-
der switch LH (unlock) Input
OFFON (open, 2nd turn) Momentary 1.5V
OFF (closed) 0V
8 7
YFront door key cylin-
der switch LH (lock) InputOn (open) Momentary 1.5V
OFF (closed) 0V
9 W Rear window defogger
switch Input ONRear window defogger switch
ON 0V
Rear window defogger switch
OFF 5V
11 L Ignition switch (ACC
or ON) InputACC or
ON Ignition switch ACC or ON Battery voltage
12 SB 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 W Tire pressure warning
check connector Input OFF — 5V SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

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1: With Intelligent Key
2: Without Intelligent Key
3: Hatchback without Intelligent Key
4: Sedan without Intelligent Key
5: Hatchback
6: Sedan
7: With power door locks
8: With power windows
Terminal and Reference Valu e for Intelligent Key Unit INFOID:0000000004678879
65
7
SBAll door lock actuators
(lock) Output OFFOFF (neutral) 0V
ON (lock) Battery voltage
66 7
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 8
LPower window power
supply (RAP) Output —Ignition switch ON Battery voltage
Within 45 seconds after igni-
tion switch OFF Battery voltage
More than 45 seconds after ig-
nition switch OFF 0V
When front door LH or RH is
open or power window timer
operates 0V
69 8
P Battery power supply
OutputOFF
— Battery voltage
70 Y Battery power supply Input OFF — Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition Terminal
Wire
Color Item Condition
Voltage (V)Approx.
Ignition
Switch
Position Operation or Conditions
1 R Steering lock solenoid
power supply LOCK — 5
2 L CAN-H — — —
3 P CAN-L — — —
4 O Intelligent Key warning
buzzer LOCKOperate door request
switch. Buzzer OFF Battery voltage
Sound buzzer 0
5 G Front door request
switch LH —Press door request switch (driver side). 0
Other than above 5
6 Y Ignition switch (ON) ON — Battery voltage
7 LG Key switch LOCK Insert mechanical key into ignition switch. Battery voltage
Remove mechanical key from ignition
switch. 0
10 *1
WCVT or A/T device
(park position switch) ONShift lever in park position. 0
Other than above Battery voltage
11 SB Power source (Fus e) — — Battery voltage
12 B Ground — — 0

System Description " .
3. Repair or replace any malfunctioning parts. Refer to BL-182, " Trouble Diagnosis Chart by Symptom " .
4. Does back door opener operate normally? If Yes, GO TO 5. If No, GO TO 3.
5. Inspection End.
Trouble Diagnosis Chart by Symptom INFOID:0000000004305090
BCM Power Supply and Gr ound Circuit Inspection INFOID:0000000004678881Test item Content
TRUNK/BACK DOOR This test is able to check back door lock assembly (actuator) unlock operation.
Actuator opens back door lock assembly when “OPEN” on CONSULT-III screen is touched. Symptom Diagnoses/service procedure
Reference
page
Back door opener does not operate.
(Without Intelligent Key or power windows) 1. Check BCM power supply and ground circuit.
BCS-15 2. Check back door opener switch circuit.
BL-183 3. Check back door lock assembly (actuator) circuit.
BL-190 4. Replace BCM.
BCS-18Back door opener does not operate.
(Without Intelligent Key, with power windows) 1. Check BCM power supply and ground circuit.
BCS-15 2. Check back door opener switch circuit.
BL-186 3. Check back door lock assembly (actuator) circuit.
BL-190 4. Replace BCM.
BCS-18Back door opener does not operate.
(With Intelligent Key) 1. Check BCM power supply and ground circuit.
BCS-15 2.
Check Intelligent Key power supply and ground cir-
cuit. BL-126 3. Check back door opener switch circuit.
BL-188 4. Check back door lock assembly (actuator) circuit.
BL-190 5. Replace BCM.
BCS-18

BACK DOOR LOCK
BL-183
< SERVICE INFORMATION >
C
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F
G H
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M A
B BL
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OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse. Refer to PG-3, " Schematic " .
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 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.
Check Back Door Opener S witch Circuit (Without Intellig ent Key or Power Windows)
INFOID:00000000043050921.
CHECK BACK DOOR OPENER SWITCH SIGNAL 1
With CONSULT-III
1. Insure front door lock knob LH is turned to the UNLOCK position.
2. Check back door opener switch (“TRNK OPNR SW ”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
1. Insure front door lock knob LH is turned to the UNLOCK position.
2. Check voltage between BCM connector M18 terminal 30 and ground. Connector
Terminals
Power
source Condition Voltage (V) (Ap-
prox.)
(+) (-)
M18 11 Ground
ACC
power
supply Ignition
switch
ACC or ON Battery voltage
38 Ground Ignition
power
supply Ignition
switch ON
or START Battery voltage
M20 57 Ground
Battery
power
supply Ignition
switch OFF Battery voltage
70 Ground Battery
power
supply Ignition
switch OFF Battery voltage LIIA2415E
67 - Ground : Continuity should exist.
LIIA0915E
Test item Condition
TRNK OPNR SW Back door opener switch is pushed: ON
Back door opener switch is released: OFF

BL-186< SERVICE INFORMATION >
BACK DOOR LOCK
OK or NG OK >> Check the condition of harness and connector.
NG >> Replace BCM. Refer to BCS-18, " Removal and Installa-
tion of BCM " .
Check Back Door Opener Swit ch Circuit (Without Intelligent Key, with Power Windows)
INFOID:00000000043050931.
CHECK BACK DOOR OPENER SWITCH SIGNAL 1
With CONSULT-III
1. Insure front door lock knob RH is turned to the UNLOCK position.
2. Check back door opener switch (“TRNK OPNR SW”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
1. Insure front door lock knob RH is turned to the UNLOCK position.
2. Check voltage between BCM connector M18 terminal 30 and ground.
OK or NG OK >> Back door opener switch is OK.
NG >> GO TO 2 2.
CHECK BACK DOOR OPENER SWITCH CIRCUIT 1
1. Turn ignition switch OFF.
2. Disconnect BCM and back door opener switch connector.
3. Check continuity between BCM connector (A) M 18 terminal 30 and back door opener switch connector
(B) terminal 1.
4. Check continuity between BCM connector (A) M18 terminal 30
and ground. Terminals
Voltage (V)
(Approx.)
(+)
(–)
BCM connector Terminal
M18 30 Ground Battery voltage PIIB6468E
Test item Condition
TRNK OPNR SW Back door opener switch is pushed: ON
Back door opener switch is released: OFF Terminals
Door conditionVoltage (V)
(Approx.)
(+)
(–)
BCM
connector Terminal
M18 30 Ground Back door
opener switch Pushed 0
Released Battery voltage PIIB6468E
A B
Continuity
BCM connector Terminal Back door opener
switch connector Terminal
M18 30 D408 1 Yes PIIB6469E