2009 NISSAN LATIO trunk

BL-142< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK or NG OK >> Replace front door lock actuator LH (door unlock sen-
sor). Refer to BL-166, " Removal and Installation " .
NG >> Replace Intelligent Key unit. Refer to BL-158, " Removal
and Installation of Intelligent Key Unit " .
Intelligent Key Warning Buzzer(s) Check INFOID:00000000043050561.
CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT
1. Disconnect inoperative Intelligent Key warning buzzer connector.
2. Check voltage between Intelligent Key warning buzzer connector and ground.
OK or NG OK >> GO TO 2
NG >> Repair or replace Intelligent Key warning buzzer power supply circuit. 2.
CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit c onnector and inoperative Intelligent Key warning buzzer
connector.
3. Check continuity between Intelligent Key unit connector and ground.
OK or NG OK >> GO TO 3
NG >> Repair or replace harness between Intelligent Key unit and Intelligent Key warning buzzer. 3.
CHECK INTELLIGENT KEY WA RNING BUZZER OPERATION
Connect battery power supply to Intelligent Key warning buzzer terminals 1 and 2, and check the operation. Terminals
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key unit
connector Terminal
M52 28 Ground 5 PIIB6638E
Terminals
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key warning buzzer
connector Terminal
Front door LH D6 1 Ground Battery voltage
Trunk (sedan) B32 PIIB6622E
A B
Continuity
Intelligent
Key unit
connector Terminal
Intelligent Key warning
buzzer connector Terminal
M52 4 Front door LH D6
2 Yes
Trunk (sedan) B32
A GroundContinuity
Intelligent Key unit con-
nector Terminal
M52 4 No PIIB6623E

BACK DOOR LOCK
BL-177
< SERVICE INFORMATION >
C
D E
F
G H
J
K L
M A
B BL
N
O P
30
1
VBack door/trunk out-
put Output —Back door open (switch
closed) 0V
Back door closed (switch
open) 5V
30 3
VBack door opener
switch Input —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
30 4
VTrunk lid opener
switch Input —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
32 LG Combination switch
output 5 Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 Y Combination switch
output 4 Output ON
Lighting, turn, wiper OFF
Wiper dial position 4
34 V Combination switch
output 3 Output ONLighting, turn, wiper OFF
Wiper dial position 4
35 R Combination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 P Combination switch
output 1
37 1
GKey switch and igni-
tion knob switch Input OFFIntelligent Key inserted Battery voltage
Intelligent Key removed 0V
37 2
GKey switch and key
lock solenoid 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 6
WTrunk key cylinder
switch Input —ON (Full unlock position) 0V
OFF (Neutral position) 5V
42 6
Y Trunk lamp switch Input OFF ON (trunk open) 0V
OFF (trunk closed) Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E

BL-178< SERVICE INFORMATION >
BACK DOOR LOCK
43 5
R Back door switch Input OFF ON (open) 0V
OFF (closed) Ba ttery voltage
44 5
LG Rear wiper auto stop Input ON Rear wiper operating 0
Rear wiper stopped Battery
45 7
GR Lock switch Input OFF ON (lock) 0V
OFF Battery voltage
46 7
L Unlock switch Input OFF ON (unlock) 0V
OFF Battery voltage
47 BR Front door switch LH Input OFF ON (open) 0V
OFF (closed) Ba ttery voltage
48 O Rear door switch LH Input OFF ON (open) 0V
OFF (closed) Ba ttery voltage
49 P Luggage room lamp Output OFF Any door open (ON) 0V
All doors closed (OFF) Battery voltage
50 SB A/C indicator Output ON A/C OFF 0
A/C ON Battery voltage
53 5
RBack door lock assem-
bly (actuator) Output OFF Back door (open) Battery voltage
53 6
RTrunk lamp switch and
trunk release solenoid Output OFF Trunk lid (open) Battery voltage
55 5
VRear wiper motor out-
put Output ONOFF 0
ON Battery voltage
56 R Battery saver output Output OFF
30 minutes after ignition
switch is turned OFF 0V
ON — Battery voltage
57 LG Battery power supply Input OFF — Battery voltage
59 7
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 OFF Any door
switch ON (open) 0V
OFF (closed) Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition SKIA3009J
SKIA3009J

BACK DOOR LOCK
BL-181
< SERVICE INFORMATION >
C
D E
F
G H
J
K L
M A
B BL
N
O P
*1: With continuously variable transmission (CVT) or automatic transmission (A/T).
*2: With manual transmission (M/T).
CONSULT-III Function (BCM) INFOID:0000000004305088
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following. 29 V
Back door request
switch (hatchback) —Press back door request switch. 0
Other than above 5
Trunk opener request
switch (sedan) —Press trunk opener request switch. 0
Other than above 5
31 BR Steering lock solenoid
ground — — 0
32 GR Steering lock solenoid
communication signal LOCKWhen Intelligent Key is inside vehicle,
press ignition knob switch.
Other than above 5
33 R Rear floor antenna (+)
signal
LOCK• Any door open
→ all door close
• Press ignition knob switch: ON (Ignition
knob switch)
34 G Rear floor antenna (-)
signal
37 BR Front outside antenna
RH (+) signal
LOCK Press door request switch RH.
38 Y Front outside antenna
RH (-) signal
Terminal
Wire
Color Item Condition
Voltage (V)Approx.
Ignition
Switch
Position Operation or Conditions SIIA1911J
PIIB5502J
SIIA1910J
BCM
diagnostic test item Diagnostic mode Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date 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 BC M self-diagnosis results.
CAN DIAG SUPPORT MNTR The result 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 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

BL-190< SERVICE INFORMATION >
BACK DOOR LOCK
Check continuity between back door opener switch connector termi-
nal 2 and ground.
OK or NG OK >> GO TO 5
NG >> Repair or replace harness. 5.
CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect Intelligent Key unit connector.
2. Check voltage between Intelligent Key unit connector M52 terminal 24 and ground.
OK or NG OK >> Check the condition of harness and connector.
NG >> Replace Intelligent Key unit. Refer to BL-158, " Removal
and Installation of Intelligent Key Unit " .
Check Back Door Lock Asse mbly (Actuator) Circuit INFOID:00000000043050951.
CHECK BACK DOOR LOCK ASSE MBLY (ACTUATOR) FUNCTION
With CONSULT-III
Check the operation with (“TRUNK/BACK DOOR”) in the ACTIVE TEST.
YES or NO YES >> Back door lock assembly (actuator) is OK.
NO >> GO TO 2 2.
CHECK BACK DOOR LOCK ASSEMB LY (ACTUATOR) POWER SUPPLY
1. Turn ignition switch OFF.
2. Insure both front door lock knobs are turned to the UNLOCK position.
3. Disconnect back door lock assembly (actuator) connector.
4. Check voltage between back door lock assembly (actuator) connector D405 terminal 1 and ground. Back door opener switch
connector Terminal
GroundContinuity
D408 2 Yes PIIB6472E
Terminals
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key unit
connector Terminal
M52 24 Ground 5 WIIA1279E
Does back door actuator system operate normally?
Terminals
ConditionVoltage (V)
(Approx.)
(+)
(–)
Back door
lock as-
sembly (ac-
tuator)
connector Terminal
D405 1 Ground Back door
opener switch Pushed 0
↓
Battery voltage ↓0
Released 0 WIIA1275E

BL
N
O P
TRUNK LID
Fitting Adjustment INFOID:0000000004305097
Longitudinal and latera l clearance adjustment
1. With the striker released, loosen the trunk lid hinge nuts and close the trunk lid.
2. Make the lateral clearance and the clearance to the rear window glass equal. Then open the trunk lid to tighten the nuts.
Surface height adjustment 1. Loosen the striker bolts. Raise the striker to t he top position, and temporarily tighten the upper bolt.
2. Close the trunk lid lightly and adjust the surface height. Then open the trunk lid and tighten the striker bolts.
Trunk Lid Assembly INFOID:0000000004305098
REMOVAL 1. Remove the trunk lid finisher. Refer to EI-55 .
2. Remove the trunk lid wire harness. 1. Rear fender 2. Trunk lid 3. Rear combination lamp
4. Rear bumper fascia a. 4.0 ± 1.0 mm (0.16 ± 0.04 in) b. 3.5 ± 1.0 mm (0.14 ± 0.04 in)
c. 4.5 ± 1.7 mm (0.03 ± 0.06 in) d. 7.0 ± 2.2 mm (0.28 ± 0.09 in)

.
2. If equipped, disconnect the trunk lid lock cylinder rod.
3. Remove the release cable.
4. Disconnect the electrical connector (a), remove the bolts (b) and
the trunk lid lock (1).
INSTALLATION
Installation is in the reverse order of removal.
Trunk Lid Striker INFOID:0000000004305100
REMOVAL
1. Remove the trunk rear plate and trunk rear finisher. Refer to EI-55 .
2. Remove the bolts, disconnect the electrical connector and remove the trunk lock actuator.
3. Remove the bolt and disconnect the trunk lid release cable. LIIA2935E