2011 NISSAN LATIO lock

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PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
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NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
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.
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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.
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STARTING SYSTEMSC-9
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STARTING SYSTEM
System DescriptionINFOID:0000000005929014
M/T Models
Power is supplied at all times
• to starter motor terminal B, and
• through 40A fusible link (letter h, located in the fuse and fusible link box)
• to ignition switch terminal B.
With the ignition switch in the START position, power is supplied
• from ignition switch terminal ST
• to IPDM E/R terminal 21.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse (No. 49, located in the IPDM E/R)
• to the clutch interlock switch terminal 1.
With the clutch pedal depressed, power is supplied
• through the clutch interlock switch terminal 2
• to IPDM E/R terminal 35.
Ground is supplied at all times
• to IPDM E/R terminals 39 and 59
• through body grounds E15 and E24.
If the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN communication lines,
the IPDM E/R grounds the starter relay and power is supplied
• through terminal 19 of the IPDM E/R
• to terminal S of the starter motor.
The starter motor magnetic switch energizes closing the circuit between the battery and the starter motor. The
starter motor is case ground through the cylinder block. With power and ground supplied, the starter motor
operates.
A/T Models
Power is supplied at all times
• to starter motor terminal B, and
• through 40A fusible link (letter h, located in the fuse and fusible link box)
• to ignition switch terminal B.
With the ignition switch in the START position, power is supplied
• from ignition switch terminal ST
• to IPDM E/R terminal 21.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse (No. 54, located in the IPDM E/R)
• to transmission range switch terminal 1.
With the selector lever in the P or N position, power is supplied
• through transmission range switch terminal 2
• to IPDM E/R terminal 35.
Ground is supplied at all times
• to IPDM E/R terminals 39 and 59
• through body grounds E15 and E24.
If the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN communication lines,
the IPDM E/R grounds the starter relay and power is supplied
• through terminal 19 of the IPDM E/R
• to terminal S of the starter motor.
The starter motor magnetic switch energizes closing the circuit between the battery and the starter motor. The
starter motor is case ground through the cylinder block. With power and ground supplied, the starter motor
operates.
CVT Models
Power is supplied at all times
• to starter motor terminal B, and
• through 40A fusible link (letter h, located in the fuse and fusible link box)
• to ignition switch terminal B.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse (No. 49, located in the IPDM E/R)
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STARTING SYSTEM
• to transmission range switch terminal 1.
With the selector lever in the P or N position, power is supplied
• through transmission range switch terminal 2
• to IPDM E/R terminal 35.
Ground is supplied at all times
• to IPDM E/R terminals 39 and 59
• through body grounds E15 and E24.
If the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN network, the IPDM E/
R grounds the starter relay and power is supplied
• through terminal 19 of the IPDM E/R
• to terminal S of the starter motor.
The starter motor magnetic switch energizes closing the circuit between the battery and the starter motor. The
starter motor is case ground through the cylinder block. With power and ground supplied, the starter motor
operates.
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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)
• Transmission range 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
2.CHECK VOLTAGE DROP ON MAGNETIC SWITCH CIRCUIT
1. Connect starter motor connector F28.
2. Check voltage between starter motor connector F28 terminal S and battery positive terminal using a digital circuit tester.
OK or NG
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 HR16DEINFOID:0000000005929017
Ignition switch in
START : Less than 1V
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Engine coolant temperature
Voltage V
− 30 °C to − 20°C ( −22 °F to −4 °F) 8.4
− 19 °C to − 10°C ( −2°F to 14 °F) 8.9
− 9 °C to 0 °C (16 °F to 32 °F) 9.3
More than 1 °C (More than 34 °F) 9.7
1. Cylinder block2. "B" terminal harness3. "S" terminal harness
4. Starter motor Engine front
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STARTING SYSTEM
REMOVAL
1. Disconnect the battery cable from the negative terminal.
2. Remove air duct (inlet).EM-16, "
Removal and Installation"
3. Remove reservoir tank. Refer to CO-16, "Removal and Installation".
4. Remove “S” terminal nut.
5. Remove “B” terminal nut.
6. Remove starter motor bolts.
7. Remove starter motor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
Removal and Installation MR18DEINFOID:0000000005929018
REMOVAL
1. Disconnect the battery negative terminal. Refer to SC-7, "Removal and Installation".
2. Remove air duct (inlet). Refer to EM-135, "
Removal and Installation".
3. Remove reservoir tank. Refer to CO-16, "
Removal and Installation".
4. Remove “S” terminal nut.
5. Remove “B” terminal nut.
6. Remove starter motor bolts.
7. Remove starter motor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Be sure to tighten terminal nuts carefully.
1. "S" terminal harness 2. "B" terminal harness 3. Starter motor
4. Cylinder block Front
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CHARGING SYSTEM
System DescriptionINFOID:0000000005929019
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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CHARGING SYSTEM
2.CHECK CHARGE WARNING LAMP CIRCUIT
1. Disconnect generator connector F1.
2. Apply ground to generator connector F1 terminal 2 with the igni- tion switch in the ON position.
OK or NG
OK >> GO TO "WORK FLOW" .
NG >> Check the following. • 10A fuse [No. 3, located in fuse block (J/B)]
• CHARGE lamp
• Harness for open or short between combination meterand fuse
• Harness for open or short between combination meter and generator
DIAGNOSTIC PROCEDURE 2
Check Battery Circuit
1.CHECK BATTERY CIRCUIT CONNECTION
Check to see if terminal 1 is clean and tight.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal 1 connection. Confirm repair by performing complete Starting/Charging system test. Refer to diagnostic station instruction manual.
2.CHECK BATTERY CIRCUIT
Check voltage between generator connector F2 terminal 1 and
ground using a digital circuit tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following. • 120A fusible link [letter a , located in fusible link box
(battery)]
• Harness for open or short between generator and fus- ible link
3.CHECK VOLTAGE DROP ON BATTERY CIRCUIT
Check voltage between generator connector F2 terminal 1 and bat-
tery positive terminal using a digital circuit tester.
OK or NG
OK >> Replace the generator. Refer to SC-25, "Removal and
Installation" . Confirm repair by performing complete
Starting/Charging system test. Refer to diagnostic sta-
tion instruction manual.
NG >> Check harness between the battery and the generator for poor continuity.
DIAGNOSTIC PROCEDURE 3
Check Voltage Regulator Circuit
CHARGE lamp should light up.
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Battery voltage should exist.
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With engine running
at idle and warm : Less than 0.2V
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