2009 NISSAN LATIO ignition

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• 10A fuse (No. 49, M/T model
s, located in the IPDM E/R)
• 15A fuse (No. 52, located in the IPDM E/R)
• 20A fuse (No. 53, located in the IPDM E/R)
• PNP switch, clutch interlock switch or TCM depending on equipment
• Ignition switch
• Ignition relay IPDM E/R
• Starter relay IPDM E/R
• Starter relay request ON signal from BCM
• Harness for open or short circuit OK >> Magnetic switch circuit is
OK. Further inspection is nec-
essary. Refer to "WORK FLOW".
NG >> Check harness, components and connections between the battery and the magnetic switch for poor continuity.
MINIMUM SPECIFICATION OF CRANKING VO LTAGE REFERENCING COOLANT TEMPERA-
TURE
Removal and Installation HR16DE INFOID:0000000004803454
Ignition switch in
START : Less than 1V1. Cylinder block 2. "B" terminal harness 3. "S" terminal harness
4. Starter motor Engine front

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CHARGING SYSTEM
System Description INFOID:0000000004306825
The generator provides DC voltage to operate the vehicl e's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Power is supplied at all times to generator terminal 3 through
• 10A fuse (No. 29, located in the fuse and fusible link box).
Power is supplied through terminal 1 to charge the batte ry and operate the vehicle's electrical system. Output
voltage is monitored at terminal 3 by the IC regulator. The charging circuit is protected by the 120A fusible link
[letter a , located in the fusible link box (battery)].
Ground is supplied
• to generator terminal 5
• through body ground F5, and
• through the generator case to the cylinder block
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 3, located in the fuse block (J/B)]
• to combination meter terminal 28 for the charge warning lamp.
The IC regulator controls ground to terminal 38 of the combination meter through terminal 2 of the generator.
When the ignition is turned on and power becomes availabl e at terminal 2, this "wakes up" the regulator. The
regulator monitors charge output and grounds terminal 2 or leaves it open depending on charge output. With
power and ground supplied, the charge warning lamp will il luminate. When the generator is providing sufficient
voltage, the ground is opened and the charge warning lamp will go off.
If the charge warning lamp illuminates with the engine running, a malfunction is indicated.

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OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Occupant Classification System Precaution INFOID:0000000004307174
Replace control unit and passenger front seat cushion as an assembly.

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III
HOW TO ERASE SELF-DIAGNOSIS RESULTS After a malfunction is repaired, turn the ignition switch OFF for at least one second, then back ON. Diagnosis
mode returns to the User mode. At that time, the self-diagnostic result is cleared.
SRS Operation Check INFOID:0000000004307189
DIAGNOSTIC PROCEDURE 1
Checking SRS Operation Using “AIR BAG” Warning Lamp—User Mode 1. Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
2. Compare the SRS air bag warning lamp blinking pattern with the examples.

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2. Touch “TROUBLE DIAG RECORD”.
NOTE:
With “TROUBLE DIAG RECORD”, di agnosis results previously erased by a reset operation can be
displayed.
3. Diagnostic code is displayed on “TROUBLE DIAG RECORD”.
4. Touch “PRINT”.
5. Compare diagnostic codes to "CONSULT-III Diagnos tic Code Chart ("SELF-DIAG [PAST]" or "TROUBLE
DIAG RECORD")".
6. Touch “BACK” key of CONSULT- III until “SELECT SYSTEM” appears.
7. Turn ignition switch OFF, then turn off and disconnect CONSULT-III, and both battery cables.
8. Repair the system as outlined by the “Repair orde r” in “Intermittent Malfunction Diagnostic Code Chart”,
that corresponds to the self-diagnostic result. For r eplacement procedure of component parts, refer to the
Removal and Installation procedure for the appropriate component.
9. Go to "DIAGNOSTIC PROCEDURE 3", for final checking.
CONSULT-III Diagnostic Code Chart ("SELF-DI AG [PAST]" or "TROUBLE DIAG RECORD")
Diagnostic item Explanation Repair order
Recheck SRS at each replacement
NO DTC IS DETECTED When malfunction is
indicated by the “AIR
BAG” warning lamp in
User mode. • Low battery voltage (L
ess than 9V) • Go to "DIAGNOSTIC PROCEDURE
3" .
• Self-diagnostic result “SELF-DIAG [PAST]” (previously stored in the
memory) might not be erased after
repair.
• Intermittent malfunction has been detected in the past. • Go to "DIAGNOSTIC PROCEDURE
4" .
• Go to "DIAGNOSTIC PROCEDURE
5" .
• No malfunction is detected. —
DRIVER AIRBAG MODULE [OPEN]
[B1049] or [B1054] Driver air bag module circuit is open (including the spiral ca-
ble). 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi- ble damage.
3. Replace driver air bag module.
4. Replace the spiral cable.
5. Replace the air bag diagnosis
sensor unit.
6. Replace the related harness.
DRIVER AIRBAG MODULE
[VB-SHORT]
[B1050] or [B1055] Driver air bag module circuit is shorted to some power supply
circuit (including the spiral cable).
DRIVER AIRBAG MODULE [GND-SHORT]
[B1051] or [B1056] Driver air bag module circuit is shorted to ground (including
the spiral cable).
DRIVER AIRBAG MODULE [SHORT]
[B1052] or [B1057] Driver air bag module circuits are shorted to each other.
ASSIST A/B MODULE [OPEN]
[B1065] or [B1070] Front passenger air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visi-
ble damage.
3. Replace front passenger air bag module.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness.
ASSIST A/B MODULE
[VB-SHORT]
[B1066] or [B1071] Front passenger air bag module circuit is shorted to some
power supply circuit.
ASSIST A/B MODULE [GND-SHORT]
[B1067] or [B1072] Front passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE [SHORT]
[B1068] or [B1073] Front passenger air bag module circuits are shorted to each
other.

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SPIRAL CABLE
Removal and Installation INFOID:0000000004307195
REMOVAL WARNING:
When servicing the SRS, do not work from directly in front of air bag module.
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery terminals and wait at
least three minutes.
• Do not tap or bump the steering wheel.
• Do not disassemble the spiral cable.
• Do not allow oil, grease or water to co me in contact with the spiral cable.
• Replace the spiral cable if it has b een dropped or sustained an impact.
• With the steering linkage disconn ected, the spiral cable may snap by turning the steering wheel
beyond the limited number of turns. The spiral cable can be turned counterclockwise about 2.5 turns
from the neutral position.
1. Disconnect the negative and positive battery term inals, then wait at least three minutes.
2. Set the front wheels to the straight-ahead/neutral position.
3. Remove the steering wheel. Refer to PS-6 .
4. Remove the column cover upper and lower.
5. Disconnect wiper and washer switch connector (1). Then while pressing tabs (2), pull wiper and washer switch away from spiral
cable to remove. 2. Steering wheel 3. Lighting and turn signal switch
4. Spiral cable 5. Driver air bag module connectors 6. Wiper and washer switch
7. Column cover lower 8. Steering lock escutcheon 9. Steering column assembly
10. Column cover upper Pawl

SIDE AIR BAG (S
ATELLITE) SENSOR
SRS-43
< ON-VEHICLE REPAIR >
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B SRS
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SIDE AIR BAG (S
ATELLITE) SENSOR
Removal and Installation INFOID:0000000004307200
REMOVAL WARNING:
Do not reuse center pillar upper garnish if removed.
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery terminals and wait at
least three minutes.
• Do not disassemble the side air bag (satellite) sensor.
• Do not use old nuts after removal; replace with new nuts.
• Replace the side air bag (satellite) sensor if it has been
dropped or sustained an impact.
• Check side air bag (satellite) sensor to make sure it is free of deformities, dents, cracks or rust . If it shows any visible signs
of damage, replace it with a new one.
1. Disconnect both the negative and positive battery te rminals, then wait at least three minutes.
2. Remove the front seat belt retractor. Refer to SB-4, " Removal and Installation of Front Seat Belt " .
3. Remove the nuts (1) and remove side air bag (satellite) sensor (2).
⇐ : Vehicle front
4. Disconnect the side air bag (satellite) sensor harness connector (3).
INSTALLATION Installation is in the reverse order of removal.
• After the work is completed, perform self-diagnosis to make sure no malfunction is detected. Refer to SRS-19, " SRS Operation Check " . WHIA0321E
WHIA0322E

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DIAGNOSIS SENSOR UNIT
Removal and Installation INFOID:0000000004307202
REMOVAL WARNING:
Before disconnecting diagnosis sensor unit harness connector(s), be sure to disconnect harness con-
nectors from air bag modules and front seat belt pr e-tensioner to prevent deployment by static elec-
tricity.
CAUTION:
• Before servicing the SRS, turn th e ignition switch OFF, disconnect both battery terminals and wait at
least three minutes.
• Do not disassemble di agnosis sensor unit.
• Do not use old bolts; replace with new bolts.
• Replace the diagnosis sensor unit if it has been dropped or sustained an impact.
• Check diagnosis sensor unit bracket to make sure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of da mage, replace with new one.
• The diagnosis sensor unit must always be installed with the arrow mark "⇐" pointing toward the
front of the vehicle for proper operation.
1. Disconnect the negative and positive battery term inals, then wait at least three minutes.
2. Disconnect the harness connectors for each air bag module and seat belt pre-tensioner. Refer to SRS-34 ,
SRS-39 ,
SRS-40 ,
SRS-44 .
3. Remove center console assembly. Refer to IP-11 .
4. Disconnect diagnosis sensor unit connectors.
5. Remove the bolts and the ground bolt, then remove the diagnosis sensor unit.
INSTALLATION Installation is in the reverse order of removal.
• The diagnosis sensor unit must always be installed with the arrow mark " ⇐" pointing toward the front of the
vehicle.
• Follow the tightening sequence 1,2,3,4 as shown.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRS-19, " SRS Operation Check " .
ECU DISCRIMINATED NO. After replacing the diagnosis sensor unit, confirm that t he diagnosis sensor unit identification is correct for the
vehicle as equipped. Refer to SRS-17, " CONSULT-III Function (AIR BAG) " .
1. Diagnosis sensor unit connectors 2. Ground Bolt 3. Bolt
4. Diagnosis sensor unit ⇐Vehicle front