2008 NISSAN LATIO battery

INTELLIGENT KEY SYSTEM
BL-125
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
OK or NG
OK >> GO TO 4.
NG >> Replace unlock sensor.
4.CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between front door lock actuator LH (door unlock sensor) connector 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 harness connector.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Replace front door lock actuator LH (door unlock sen-
sor). Refer to BL-150, "
Removal and Installation".
NG >> Replace Intelligent Key unit. Refer to BL-142, "
Removal
and Installation of Intelligent Key Unit".
Intelligent Key Warning Buzzer(s) CheckINFOID:0000000001704024
1.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.
Te r m i n a l
Driver side door
conditionContinuity
Unlock sensor
45Lock No
Unlock Yes
PIIB6643E
Front door lock actua-
tor LH (door unlock
sensor) connectorTe r m i n a l
GroundContinuity
D3 5 Yes
PIIB6644E
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTe r m i n a l
M52 28 Ground 5
PIIB6638E
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key warning buzzer
connectorTerminal
Front door LH D6
1 Ground Battery voltage
Trunk (sedan) B32
PIIB6622E

BL-126
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
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 connector 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 WARNING BUZZER OPERATION
Connect battery power supply to Intelligent Key warning buzzer terminals 1 and 2, and check the operation.
OK or NG
OK >> Intelligent Key warning buzzer is OK.
NG >> Replace inoperative Intelligent Key warning buzzer.
Outside Key Antenna (Driver Side and Passenger Side) CheckINFOID:0000000001704025
1.CHECK OUTSIDE KEY ANTENNA FUNCTION
With CONSULT-III
1. Check the operation with (“ANTENNA”) in the ACTIVE TEST.
2. Touch “DRIVER ANT” and “ASSIST ANT” on screen.
3. Carry the Intelligent Key into the antenna detection area.
Do the hazard lamps flash?
Yes >> Outside key antenna (driver side or passenger side) is OK.
No >> GO TO 2.
2.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
AB
Continuity Intelligent
Key unit
connectorTe r m i n a lIntelligent Key warning
buzzer connectorTe r m i n a l
M52 4Front door LH D6
2Yes
Trunk (sedan) B32
A
GroundContinuity
Intelligent Key unit con-
nectorTerminal
M52 4 No
PIIB6623E
1 (BAT+) - 2 (BAT-) : the buzzer sounds
PIIB6624E
Test item Corresponding antenna
DRIVER ANT Outside key antenna driver side
ASSIST ANT Outside key antenna passenger side

INTELLIGENT KEY SYSTEM
BL-131
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
OK or NG
OK >> Replace malfunction inside key antenna.
NG >> Replace Intelligent Key unit.
Steering Lock Solenoid CheckINFOID:0000000001704028
1.CHECK STEERING LOCK SOLENOID POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace steering lock solenoid power supply
circuit.
2.CHECK STEERING LOCK SOLENOID GROUND CIRCUIT
Check continuity between steering lock solenoid and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.
3.CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect steering lock solenoid connector.
2. Check voltage between Intelligent Key unit and ground.
Te r m i n a l s
ConditionSignal
(Reference value.) (+)
(–)
Intelligent Key unit
connectorTe r -
minal
M52Instrument
panel area13
GroundAny door
is open →
close Front con-
sole area15
Rear floor
area33
WIIA1200E
PIIB5502J
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–)
Steering lock sole-
noidTe r m i n a l
M6 1 Ground Battery voltage
PIIB6632E
Steering lock solenoid connector Terminal
GroundContinuity
M6 4 Yes
PIIB6633E

BL-134
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
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:0000000001704030
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)INFOID:0000000001704031
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 SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
Key switch and ignition knob
switchTerminal Terminal Resistance
561-10 Ω
WIIA1301E
Te r m i n a l s
Ignition switch position
(+)
(–) Intelligent
Key unit
connectorTerminal OFF ACC ON
M52 6 Ground 0 0 Battery voltage
PIIB6884E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 26 GroundBrake pedal
depressedBattery volt-
age
Brake pedal
released0
WIIA1207E

INTELLIGENT KEY SYSTEM
BL-135
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
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.
Stop Lamp Switch Check (With M/T)INFOID:0000000001704032
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 2.1 - Ground : Battery voltage
WIIA1255E
Component Terminals Condition Continuity
Stop lamp
switch12Brake pedal depressed Yes
Brake pedal not depressed No
WIIA1256E
26 - 2 : Continuity should exist.
26 - Ground : Continuity should not exist.
WIIA1257E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 26 GroundBrake pedal
depressedBattery volt-
age
Brake pedal
released0
WIIA1207E

BL-136
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
2.CHECK STOP LAMP SWITCH 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.
Check CVT Device (Park Position Switch) CheckINFOID:0000000001704033
1.CHECK CVT DEVICE (PARK POSITION SWITCH) INPUT SIGNAL
1. Turn ignition switch OFF.
2. While pressing the ignition knob switch, check voltage between Intelligent Key unit harness connector
M52 terminal 10 and ground.1 - Ground : Battery voltage
WIIA1208E
Component Terminals Condition Continuity
St op la mp
switch12Brake pedal depressed Yes
Brake pedal not depressed No
WIIA1209E
26 - 2 : Continuity should exist.
26 - Ground : Continuity should not exist.
WIIA1210E

INTELLIGENT KEY SYSTEM
BL-137
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
OK or NG
OK >> Replace Intelligent Key unit. Refer to BL-142, "Removal
and Installation of Intelligent Key Unit".
NG >> GO TO 2.
2.CHECK CVT DEVICE (PARK POSITION SWITCH)
1. Disconnect CVT device (park position switch) connector.
2. Check continuity between CVT device (park position switch) terminals 6 and 8.
OK or NG
OK >> GO TO 3.
NG >> Replace CVT device (park position switch).
3.CHECK PARK POSITION SWITCH GROUND CIRCUIT
Check continuity between CVT device (park position switch) harness
connector M38 terminal 6 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK PARK POSITION SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit harness connector
(A) M52 terminal 10 and CVT device (park position switch) har-
ness connector (B) M38 terminal 8.
3. Check continuity between Intelligent Key unit harness connector
(A) M52 terminal 10 and ground.
OK or NG
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 10 GroundSelector lever is in "P" position 0
Other than above Battery voltage
WIIA1258E
Component Terminals Condition Continuity
CVT device
(park position
switch)68Selector lever is in "P" position Yes
Other than above No
WIIA1259E
6 – Ground : Continuity should exist.
WIIA1260E
10 – 8 : Continuity should exist.
10 – Ground : Continuity should not exist.
WIIA1261E

BL-138
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK >> GO TO 5.
NG >> Repair or replace harness.
5.CHECK INTELLIGENT KEY OUTPUT SIGNAL
1. Connect Intelligent Key unit connector and CVT device (park position switch) connector.
2. Check voltage between Intelligent Key unit connector M52 terminal 10 and ground.
OK or NG
OK >> CVT device (park position switch) circuit is OK.
NG >> Replace Intelligent Key unit. Refer to BL-142, "
Removal
and Installation of Intelligent Key Unit".
"P-SHIFT" Warning Lamp (With CVT) CheckINFOID:0000000001704034
1.CHECK WARNING LAMP OPERATION
With CONSULT-III
• Check “INDICATOR” in “ACTIVE TEST” mode with CONSULT-III.
• Select “KNOB ON”.
“P-SHIFT” warning lamp should illuminate.
Without CONSULT-III
1. Turn ignition switch OFF.
2. While monitoring the combination meter warning lamps, turn
ignition switch ON. "P-SHIFT" warning lamp should illuminate
for 1 second to perform a bulb check.
OK or NG
OK >> INSPECTION END
NG >> Check combination meter. Refer to DI-4
.
"LOCK" Warning Lamp (With M/T) CheckINFOID:0000000001704035
1.CHECK WARNING LAMP OPERATION
With CONSULT-III
• Check “INDICATOR” in “ACTIVE TEST” mode with CONSULT-III.
• Select “KNOB ON”.
“LOCK” warning lamp should illuminate.
Without CONSULT-III
1. Turn ignition switch OFF.
ConnectorTe r m i n a l
ConditionVoltage (V)
(Approx.)
(+) (-)
M52 10 GroundSelector lever is in “P” position 0
Other than above Battery voltage
WIIA1258E
WIIA1262E