2010 NISSAN LATIO fuse

BL-108
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Intelligent Key Unit Harnes s Connector Terminal Layout
INFOID:0000000005396603
Terminal and Reference Value for Intelligent Key UnitINFOID:0000000005396604
WIIA1168E
Te r m i n a lWire
Color Item Condition
Voltage (V)Approx.
Ignition
Switch
Position Operation or Conditions
1R Steering lock solenoid
power supply LOCK
— 5
2 L CAN-H —— —
3 P CAN-L —— —
4O Intelligent Key warning
buzzer LOCK
Operate door request
switch. Buzzer OFF
Battery voltage
Sound buzzer 0
5G 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 LOCKInsert mechanical key into ignition switch. Battery voltage
Remove mechanical key from ignition
switch.
0
10
*1W CVT or A/T shift selec-
tor (park position
switch)
ONShift lever in park position.
0
Other than above Battery voltage
11 SB Power source (Fuse) — —Battery voltage
12 B Ground —— 0
13 V Instrument panel an-
tenna (+) signal
LOCK• Any door open
→ all door close
• Press ignition knob switch: ON (Ignition knob switch)
14 LG Instrument panel an-
tenna (-) signal
15 L Front console antenna
(+) signal
LOCK• Any door open
→ all door close
• Press ignition knob switch: ON (Ignition knob switch)
16 P Front console antenna
(-) signal
PIIB5502J
PIIB5502J
Revision: January 20102010 Versa

BL-128
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
3.CHECK KEY SWITCH
Check continuity of key switch and ignition knob switch.
OK or NG
OK >> GO TO 4
NG >> Replace key cylinder assembly (built-in key switch).
4.CHECK KEY SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit and key switch and ignition knob switch.
3. Check continuity between Intelligent Key unit and ground.
OK or NG
OK >> Check the condition of harness and harness connector.
NG >> Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.
Key Switch (BCM Input) CheckINFOID:0000000005396615
1.CHECK KEY SWITCH PO WER SUPPLY CIRCUIT
1. Remove mechanical key from ignition switch.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch and ground.
OK or NG
OK >> GO TO 2
NG >> Check harness between key switch and ignition knob switch and fuse.
2.CHECK KEY SWITCH OPERATION
Check continuity of key switch and ignition knob switch.
Te r m i n a l Condition of key switch Continuity
Key switch and ignition knob switch
12 Insert mechanical key into
ignition switch Ye s
Remove mechanical key from ignition switch No
PIIB6599E
AB
Continuity
Intelligent Key unit
connector Te r m i n a lKey switch and ig-
nition knob switch
connector Te r m i n a l
M52 7M73 1Yes
A GroundContinuity
Intelligent Key unit connector Terminal
M52 7 No
PIIB6600E
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Key switch and ig-
nition knob switch
connector Te r m i n a l
M73 2Ground Battery voltage
PIIB6598E
Revision: January 20102010 Versa

BL-150
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Check continuity between key switch and ignition knob switch con-
nector M73 terminal 5 and ground.
OK or NG
OK >> GO TO 3
NG >> Repair or replace harness.
3.CHECK INTELLIGENT KEY SOLENOID RESISTANCE
Check resistance between key switch and ignition knob switch termi-
nals 5 and 6.
OK or NG
OK >> Key switch and ignition knob switch is OK.
NG >> Replace key switch and ignition knob switch.
Ignition Switch Position CheckINFOID:0000000005396629
1.CHECK IGNITION POWER SUPPLY
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Ignition power supply is OK.
NG >> Check the following. • Intelligent Key unit power supply circuit.
• 10A fuse [No. 2, located in the fuse block (J/B)]
Stop Lamp Switch Check (With CVT or A/T)INFOID:0000000005396630
1.CHECK STOP LAMP SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
Key switch and ignition knob switch connector Te r m i n a l
GroundContinuity
M73 5 Yes
WIIA1266E
Key switch and ignition knob
switch Terminal Terminal Resistance
561-10 Ω
WIIA1301E
Te r m i n a l s
Ignition switch position
(+)
(–)
Intelligent
Key unit
connector Terminal
OFF ACC ON
M52 6 Ground 0 0 Battery voltage
PIIB6884E
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-151
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M52 terminal 26 and ground.
OK or NG
OK >> Stop lamp switch is OK.
NG >> GO TO 2
2.CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch harness connector E13 terminal 1 and ground.
OK or NG
OK >> GO TO 3
NG >> Repair or replace harness between stop lamp switch power supply circuit and fuse.
3.CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop lamp switch terminals 1 and 2.
OK or NG
OK >> GO TO 4
NG >> Replace stop lamp switch.
4.CHECK STOP LAMP SWITCH CIRCUIT
1. Check continuity between Intelligent Key unit harness connector (A) M52 terminal 26 and stop lamp switch harness connector (B)
E13 terminal 2.
2. Check continuity between Intelligent Key unit harness connector M52 terminal 26 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 26Ground Brake pedal
depressed Battery volt-
age
Brake pedal released 0
WIIA1207E
1 - Ground
: Battery voltage
WIIA1255E
Component Terminals ConditionContinuity
Stop lamp switch 12 Brake pedal depressed
Yes
Brake pedal not depressed No
WIIA1256E
26 - 2 : Continuity should exist.
26 - Ground : Continuity should not exist.
WIIA1257E
Revision: January 20102010 Versa

BL-152
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Stop Lamp Switch Check (With M/T)
INFOID:0000000005396631
1.CHECK STOP LAMP SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector M52 terminal 26 and ground.
OK or NG
OK >> Stop lamp switch is OK.
NG >> GO TO 2
2.CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch harness connector E13 terminal 1 and ground.
OK or NG
OK >> GO TO 3
NG >> Repair or replace harness between stop lamp switch power supply circuit and fuse.
3.CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop lamp switch terminals 1 and 2.
OK or NG
OK >> GO TO 4
NG >> Replace stop lamp switch.
4.CHECK STOP LAMP SWITCH CIRCUIT
1. Check continuity between Inte lligent Key unit harness connector
(A) M52 terminal 26 and stop lamp switch harness connector (B)
E13 terminal 2.
2. Check continuity between Inte lligent Key unit harness connector
M52 terminal 26 and ground.
OK or NG
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 26Ground Brake pedal
depressed Battery volt-
age
Brake pedal released 0
WIIA1207E
1 - Ground
: Battery voltage
WIIA1208E
Component Terminals ConditionContinuity
St op la mp switch 12 Brake pedal depressed
Yes
Brake pedal not depressed No
WIIA1209E
26 - 2 : Continuity should exist.
26 - Ground : Continuity should not exist.
WIIA1210E
Revision: January 20102010 Versa

BL-172
< SERVICE INFORMATION >
BACK DOOR LOCK
BACK DOOR LOCK
Component Parts and Harness Connector LocationINFOID:0000000005396650
System DescriptionINFOID:0000000005396651
Power is supplied at all times
• through 40A fusible link (letter g, located in fuse and fusible link box)
• to BCM terminal 70
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57
• through 10A fuse [No. 31, located in fuse block (J/B)]
• to Intelligent Key unit terminal 11 (if equipped).
Ground is supplied
• to BCM terminal 67 and
• to Intelligent Key unit terminal 12 (if equipped)
• through body grounds M57 and M61.
When back door opener switch is ON (pushed), ground is supplied
• to BCM terminal 30 (without Intelligent Key)
• through back door opener switch terminals 1 and 2
• through front door lock actuator LH (door unlock s ensor) terminals 4 and 5 (without power windows) or
• through front door lock actuator RH (door unlock sensor) terminals 4 and 5 (with power windows)
• through body grounds M57 and M61
• to Intelligent Key unit terminal 24 (if equipped)
• through back door opener switch terminals 1 and 2
• through body grounds B117, B132 and D402.
Then power is supplied
• through BCM terminal 53
• to back door lock assembly (actuator) terminal 1.
ALKIA1776ZZ
1. BCM M18, M19, M20
(view with glove box removed) 2. Intelligent Key unit M52
(with Intelligent Key) 3. Back door lock assembly (actuator)
D405
4. Back door opener switch D408 5. Front door lock actuator LH (door un- lock sensor) D3
(without power windows)6. Front door lock actuator RH (door
unlock sensor) D114
(with power windows)
Revision: January 20102010 Versa

BL-182
< SERVICE INFORMATION >
BACK DOOR LOCK
Data Monitor
Active Test
Work FlowINFOID:0000000005396656
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-172, "
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 SymptomINFOID:0000000005396657
BCM Power Supply and Ground Circuit InspectionINFOID:0000000005612418
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, lo cated 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-
4, "Schematic" .
Monitor itemContent
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
TRNK OPNR SW Indicates [ON/OFF] condition of back door open signal from back door opener switch.
VEHICLE SPEED Indicates [km/h] condition of vehicle speed.
Test 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 procedureReference
page
Back door opener does not operate.
(Without Intelligent Key or power windows) 1. Check BCM power supply and ground circuit.
BCS-16
2. Check back door opener switch circuit. BL-183
3. Check back door lock assembly (actuator) circuit.BL-190
4. Replace BCM.BCS-19
Back door opener does not operate.
(Without Intelligent Key, with power windows)1. Check BCM power supply and ground circuit.
BCS-162. Check back door opener switch circuit. BL-186
3. Check back door lock assembly (actuator) circuit.BL-190
4. Replace BCM.BCS-19
Back door opener does not operate.
(With Intelligent Key)1. Check BCM power supply and ground circuit.
BCS-16
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-19
Revision: January 20102010 Versa

BL-196
< SERVICE INFORMATION >
TRUNK LID OPENER
TRUNK LID OPENER
Component Parts and Harness Connector LocationINFOID:0000000005396668
System DescriptionINFOID:0000000005396669
Power is supplied at all times
• through 40A fusible link (letter g, located in fuse and fusible link box)
• to BCM terminal 70
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57
• through 10A fuse [No. 31, located in fuse block (J/B)]
• to Intelligent Key unit terminal 11 (with Intelligent Key).
Ground is supplied
• to BCM terminal 67 and
• to Intelligent Key unit terminal 12 (with Intelligent Key)
• through body grounds M57 and M61.
When trunk lid opener switch is ON (pushed), ground is supplied
• to BCM terminal 30 (without Intelligent Key)
• through trunk lid opener switch terminals 1 and 2
• through front door lock actuator LH (door unlock s ensor) terminals 4 and 5 (without power windows) or
• through front door lock actuator RH (door unlock sensor) terminals 4 and 5 (with power windows)
• through body grounds M57 and M61
• to Intelligent Key unit terminal 24 (with Intelligent Key)
• through trunk lid opener switch terminals 1 and 2
• through body grounds B117 and B132.
Then power is supplied
• through BCM terminal 53
• to trunk lamp switch and trunk release solenoid terminal 2.
ALKIA1777ZZ
1. BCM M18, M19, M20
(view with glove box removed) 2. Intelligent Key unit M52
(with Intelligent Key) 3. Trunk lamp switch and trunk release
solenoid B127
4. Trunk lid opener switch B128 5. Front door lock actuator LH (door un- lock sensor) D3 (without power win-
dows)6. Front door lock actuator RH (door
unlock sensor) D1 14 (with power
windows)
Revision: January 20102010 Versa