NISSAN LATIO 2010 Service Repair Manual

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) CheckINFOID:0000000005396623
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
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.
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key unit
connector Te r m i n a l
M52 28Ground 5
PIIB6638E
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key warning buzzer
connector Te r m i n a l
Front door LH D6 1Ground Battery voltage
Trunk (sedan) B32
PIIB6622E
AB
Continuity
Intelligent
Key unit
connector Te r m i n a l
Intelligent Key warning
buzzer connector Te r m i n a l
M52 4 Front door LH D6
2Yes
Trunk (sedan) B32
A GroundContinuity
Intelligent Key unit con-
nector Terminal
M52 4 No
PIIB6623E
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-143
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
OK or NG
OK >> Intelligent Key warning buzzer is OK.
NG >> Replace inoperative Intelligent Key warning buzzer.
Outside Key Antenna (Driver Si de and Passenger Side) CheckINFOID:0000000005396624
1.CHECK OUTSIDE KEY ANTENNA FUNCTION
With CONSULT-III
1. Check the operation with (“ANT ENNA”) 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
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Outside key antenna is OK.
NG >> GO TO 3
3.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit and outside key antenna connector.
2. Check continuity between Intelligent Key unit connector and outside key antenna connector. 1 (BAT+) - 2 (BAT-) : the buzzer sounds
PIIB6624E
Test item
Corresponding antenna
DRIVER ANT Outside key antenna driver side
ASSIST ANT Outside key antenna pass enger side
Te r m i n a l s
Condition Signal
(Reference value.)
(+)
(–)
Intelligent Key
unit connector Te r m i -
nal
M52 Driver
side 19
Ground Door re-
quest
switch is pushed
Passen-
ger side 37
PIIB6626E
SIIA1910J
Revision: January 20102010 Versa

BL-144
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
3. Check continuity between Intelligent Key unit connector andground.
OK or NG
OK >> GO TO 4
NG >> Repair or replace harness between Intelligent Key unit and outside key antenna.
4.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace outside key antenna (New antenna or other antenna).
2. Connect Intelligent Key unit and outside key antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Replace malfunctioning outside key antenna.
NG >> Replace Intelligent Key unit. Refer to BL-158, "
Removal and Installation of Intelligent Key Unit".
Outside Key Antenna (Rear Bumper) CheckINFOID:0000000005396625
1.CHECK REAR BUMPER ANTENNA FUNCTION
With CONSULT-III
1. Check the operation with (“ANTENNA”) in the ACTIVE TEST.
2. Touch “BD/TR ANT” on screen.
3. Carry the Intelligent Key into the antenna detection area.
AB
Continuity
Intelligent Key unit
connector Te r m i n a lOutside key anten-
na connector Te r m i n a l
M52 19
D10 1
Ye s
20
2
37 D106 1
38 2
A GroundContinuity
Intelligent Key unit
connector Terminal
M52 19
No
20
37
38
PIIB6627E
Te r m i n a l s
Condition Signal
(Reference value.)
(+)
(–)
Intelligent Key
unit connector Te r m i -
nal
M52 Driver
side 19
Ground Door re-
quest
switch is
pushed
Passen-
ger side 37
PIIB6626E
SIIA1910J
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-145
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
Do the hazard lamps flash?
Yes >> Rear bumper antenna is OK.
No >> GO TO 2
2.CHECK REAR BUMPER ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Rear bumper antenna is OK.
NG >> GO TO 3
3.CHECK REAR BUMPER ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit and rear bumper antenna connector.
2. Check continuity between Intelligent Key unit connector and rear bumper antenna connector.
3. Check continuity between Intelligent Key unit connector and ground.
OK or NG
OK >> GO TO 4
NG >> Repair or replace harness between Intelligent Key unit and rear bumper antenna.
4.CHECK REAR BUMPER ANTENNA INPUT SIGNAL 2
1. Replace rear bumper antenna (new antenna or other antenna).
2. Connect Intelligent Key unit and rear bumper antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
Test item Corresponding antenna
BK DOOR ANT Rear bumper antenna
Te r m i n a l s
Condition Signal
(Reference value.)
(+)
(–)
Intelligent
Key unit
connector Te r m i n a l
M52 17 Ground Back door
request
switch is
pushed
PIIB6628E
SIIA1910J
AB
Continuity
Intelligent Key unit
connector Te r m i n a l
Rear bumper an-
tenna connector Te r m i n a l
M52 17
B2 1
Ye s
18 2
A GroundContinuity
Intelligent Key unit
connector Te r m i n a l
M52 17
No
18
PIIB6629E
Revision: January 20102010 Versa

BL-146
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK or NG
OK >> Replace rear bumper antenna.
NG >> Replace Intelligent Key unit. Refer to BL-158, "
Removal and Installation of Intelligent Key Unit".
Inside Key Antenna CheckINFOID:0000000005396626
1.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Check the condition of harness and connector.
NG >> GO TO 2
2.CHECK INSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit and inside key antenna connector.
2. Check continuity between Intelligent Key unit connector and inside key antenna connector.
3. Check continuity between Intelligent Key unit connector and ground.
Te r m i n a l s
Condition Signal
(Reference value.)
(+)
(–)
Intelligent
Key unit
connector Te r m i n a l
M52 17 Ground Back door
request
switch is
pushed
PIIB6628E
SIIA1910J
Te r m i n a l s
ConditionSignal
(Reference value.)
(+)
(–)
Intelligent Key unit
connector Te r -
minal
M52 Instrument
panel area 13
Ground Any door
is open →
close
Front con-
sole area 15
Rear floor area 33
WIIA1200E
PIIB5502J
AB
Continuity
Intelligent Key
unit connector Te r m i n a lInside key antenna con-
nector Te r m i n a l
M52 13
M10Instrument
panel 2
Ye s
14
1
15 B125Front con-
sole 1
16 2
33 B126 Rear floor 1
34 2
WIIA1254E
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-147
< SERVICE INFORMATION >
C
DE
F
G H
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K L
M A
B
BL
N
O P
OK or NG
OK >> GO TO 3
NG >> Repair or replace harness between Intelligent Key unit and inside key antenna.
3.CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
1. Replace inside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit and inside key antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Replace malfunction inside key antenna.
NG >> Replace Intelligent Key unit.
Steering Lock Solenoid CheckINFOID:0000000005396627
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
A
GroundContinuity
Intelligent Key unit
connector Te r m i n a l
M52 Instrument panel
13
No
14
Front console 15
16
Rear floor 33
34
Te r m i n a l s
ConditionSignal
(Reference value.)
(+)
(–)
Intelligent Key unit
connector Te r -
minal
M52 Instrument
panel area 13
Ground Any door
is open →
close
Front con-
sole area 15
Rear floor area 33
WIIA1200E
PIIB5502J
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Steering lock sole-
noid Te r m i n a l
M6 1Ground Battery voltage
PIIB6632E
Revision: January 20102010 Versa

BL-148
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
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.
OK or NG
OK >> GO TO 4
NG >> GO TO 6
4.CHECK STEERING LOCK COMMUNICATION SIGNAL
Check signal between Intelligent Key unit and ground with oscilloscope.
OK or NG
OK >> GO TO 5
NG >> GO TO 6
5.CHECK STEERING LOCK SOLENOID COMMUNICA TION CIRCUIT FOR OPEN
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between steering lock solenoid and Intelligent Key unit.
Steering lock solenoid connector Terminal GroundContinuity
M6 4 Yes
PIIB6633E
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(–)
Intelligent Key unit
connector Te r m i n a l
M52 1Ground 5
PIIB6634E
Te r m i n a l s
Condition of key switch Voltage (V)
(Approx.)
(+)
(–)
Intelligent
Key unit
connector Te r m i n a l
M52 32 Ground Ignition
switch is pushed
PIIB6635E
SIIA1911J
Revision: January 20102010 Versa

INTELLIGENT KEY SYSTEMBL-149
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
OK or NG
OK >> Replace steering lock solenoid.
NG >> Repair or replace harness between steering lock sole- noid and Intelligent Key unit.
6.CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT FOR SHORT
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between steering lock solenoid connector and ground.
OK or NG
OK >> Replace Intelligent Key unit. Refer to BL-158, "Removal
and Installation of Intelligent Key Unit".
NG >> Repair or replace harness between steering lock sole- noid and Intelligent Key unit.
Key Interlock Solenoid (With M/T) CheckINFOID:0000000005396628
1.CHECK INTERLOCK SOLENOID POWER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and key switch and ignition knob switch connector.
3. Check continuity between Intelligent Key unit connector M52 (A) terminal 22 and key switch and ignition knob switch connector M73 (B) terminal 6.
4. Check continuity between Intelligent Key unit connector (A) ter- minal 22 and ground.
OK or NG
OK >> GO TO 2
NG >> Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.
2.CHECK INTERLOCK SOLENOID GROUND CIRCUIT
AB
Continuity
Steering lock sole-
noid connector Te r m i n a lIntelligent Key unit
connector Te r m i n a l
M6 2
M52 1
Ye s
33 2
AWKIA0195ZZ
Steering lock solenoid connector Terminal
GroundContinuity
M6 2,3 No
AWKIA0196ZZ
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 22M73 6Yes
A GroundContinuity
Intelligent Key unit connector Terminal
M52 22 No
WIIA1268E
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