NISSAN LATIO 2007 Service Repair Manual

AV-64
TELEPHONE
Revision: June 20062007 Versa
BLUETOOTH ANTENNA
Removal
1. Remove luggage side lower finisher (RH). Refer to EI-42, "Removal and Installation" .
2. Disconnect the Bluetooth harness clips.
3. Disconnect the Bluetooth antenna connector.
4. Remove the Bluetooth antenna bolt and remove antenna.
5. Remove screws and remove bracket.
Installation
Installation is in the reverse order of removal.
1. Bluetooth antenna bracket 2. Bluetooth antenna A. Bolt
B. Screws C. Harness clips
LKIA0763E

TELEPHONE
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BLUETOOTH MICROPHONE
Removal
1. Remove over-head console assembly, roof finisher. Refer to EI-39, "HEADLINING" .
2. Remove the Bluetooth microphone.
Installation
Installation is in the reverse order of removal.

AV-66
TELEPHONE
Revision: June 20062007 Versa

BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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SECTION BCS
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BCS
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
BCM (BODY CONTROL MODULE) ........................... 3
System Description .................................................. 3
BCM FUNCTION ................................................... 3
COMBINATION SWITCH READING FUNCTION ..... 3
CAN COMMUNICATION CONTROL .................... 6
BCM STATUS CONTROL ..................................... 6
SYSTEMS CONTROLLED BY BCM DIRECTLY ..... 7
SYSTEMS CONTROLLED BY BCM AND IPDM
E/R ........................................................................ 7
SYSTEMS CONTROLLED BY BCM AND COM-
BINATION METER ................................................ 7
SYSTEMS CONTROLLED BY BCM AND INTEL-
LIGENT KEY UNIT ................................................ 7
MAJOR COMPONENTS AND CONTROL SYS-
TEM ....................................................................... 8CAN Communication System Description ................ 8
Schematic ................................................................. 9
BCM Terminal Arrangement ................................... 11
Terminals and Reference Values for BCM .............. 12
BCM Power Supply and Ground Circuit Check ...... 16
CONSULT-II Function (BCM) ................................. 17
CONSULT-II START PROCEDURE .................... 17
ITEMS OF EACH PART ...................................... 17
WORK SUPPORT ............................................... 18
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 18
Configuration .......................................................... 19
DESCRIPTION .................................................... 19
READ CONFIGURATION PROCEDURE ............ 19
WRITE CONFIGURATION PROCEDURE .......... 21
Removal and Installation of BCM ........................... 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25

BCS-2
PRECAUTIONS
Revision: June 20062007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00IW5
The Supplemental Restraint System such as “AIR 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 whether 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.
WAR NIN G:

To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

BCM (BODY CONTROL MODULE)
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BCM (BODY CONTROL MODULE)PFP:284B2
System DescriptionEKS00I81
BCM (body control module) controls the operation of various electrical units installed on the vehicle.
BCM FUNCTION
BCM has a combination switch reading function for reading the operation of combination switches (light, wiper,
washer, turn signal) in addition to the function for controlling the operation of various electrical components.
Also, it functions as an interface that receives signals from the front air control, and sends signals to ECM
using CAN communication.
COMBINATION SWITCH READING FUNCTION
1. Description

BCM reads combination switch (light, wiper) status, and controls various electrical components accord-
ing to the results.

BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
2. Operation description

BCM activates transistors of output terminals (OUTPUT 1-5) periodically and allows current to flow in
turn.

If any (1 or more) of the switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input ter-
minals (INPUT 1-5) becomes active.

At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When
voltage of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects
voltage change and BCM determines that switch is ON.
3. BCM - Operation table of combination switch

BCM reads operation status of combination switch by the combination shown in the following table.
SKIB7592E

BCS-4
BCM (BODY CONTROL MODULE)
Revision: June 20062007 Versa
NOTE:
Headlamp has a dual system switch.
4. Example operation: (When lighting switch 1st position is turned ON)

When lighting switch 1st position is turned ON, contact in combination switch turns ON. At this time if
OUTPUT 4 transistor is activated, BCM detects that voltage changes in INPUT 5.

When OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges lighting
switch 1st position is ON. Then BCM sends tail lamp ON signal to IPDM E/R using CAN communica-
tion.

When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5 and rec-
ognizes that lighting switch 1st position is continuously ON.
SKIB7614E

BCM (BODY CONTROL MODULE)
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NOTE:
Each OUTPUT terminal transistor is activated at 10ms intervals. Therefore, after a switch is turned ON,
electrical loads are activated with a time delay. But this time delay is so short that it cannot be noticed.
5. Operation mode

Combination switch reading function has operation modes as follows:
Normal status

When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10ms.
Sleep status
SKIB7615E

BCS-6
BCM (BODY CONTROL MODULE)
Revision: June 20062007 Versa

When BCM is in sleep mode, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low-cur-
rent-consumption mode. OUTPUTS (2, 3, and 4) turn ON-OFF at 60ms intervals, and receives lighting
switch input only.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information through the two communication lines (CAN-L, CAN-H)
connecting the various control units in the system. Each control unit transmits/receives data, but selectively
reads required data only.
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status

With ignition switch ON, CAN communicates with other control units normally.

Control by BCM is being operated properly.

When ignition switch is OFF, switching to sleep mode is possible.

Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2. Sleep transient status

This status shuts down CAN communication when ignition switch is turned OFF.

It transmits sleep request signal to IPDM E/R and combination meter.

Two seconds after CAN communication of all control units stops, CAN communication switches to inac-
tive status.
3. CAN communication inactive status

With ignition switch OFF, CAN communication is not active.

With ignition switch OFF, control performed only by BCM is active.

Three seconds after CAN communication of all control units stops, CAN communication switches to
inactive status.
4. Sleep status
PKIB6124E

BCM (BODY CONTROL MODULE)
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BCM is activated with low current consumption mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state:
–Ignition switch
–Key switch (without Intelligent Key)
–Key switch and ignition knob switch (with Intelligent Key)
–Hazard switch
–Door lock/unlock switch
–Front door switch (LH, RH)
–Rear door switch (LH, RH)
–Back door lock assembly
–Combination switch (passing, lighting switch 1st position, front fog lamp)
–Keyfob (lock/unlock signal)
–Front door key cylinder switch LH

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY

Power door lock system. Refer to BL-23, "POWER DOOR LOCK SYSTEM" .

Remote keyless entry system. Refer to BL-54, "REMOTE KEYLESS ENTRY SYSTEM" .

Power window system. Refer to GW-17, "POWER WINDOW SYSTEM" . NOTE

Room lamp timer. Refer to LT- 9 1 , "INTERIOR ROOM LAMP" .

Rear wiper and washer system. Refer to WW-30, "REAR WIPER AND WASHER SYSTEM" .
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R

Panic system. Refer to BL-54, "REMOTE KEYLESS ENTRY SYSTEM" .

Vehicle security (theft warning) system. Refer to BL-193, "VEHICLE SECURITY (THEFT WARNING)
SYSTEM" .

NVIS(NATS) system. Refer to BL-212, "NATS (Nissan Anti-Theft System)" .

Headlamp, tail lamp and battery saver control systems. Refer to LT- 7 5 , "PARKING, LICENSE PLATE AND
TA I L L A M P S" , LT- 5 , "HEADLAMP (FOR USA)" or LT-27, "HEADLAMP (FOR CANADA) - DAYTIME
LIGHT SYSTEM -" .

Front fog lamp. Refer to LT-41, "FRONT FOG LAMP" .

Front wiper and washer system. Refer to WW-4, "FRONT WIPER AND WASHER SYSTEM" .

Rear window defogger system. Refer to GW-50, "REAR WINDOW DEFOGGER" .
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER

Warning chime. Refer to DI-47, "WARNING CHIME" .

Turn signal and hazard warning lamps. Refer to LT- 5 1 , "TURN SIGNAL AND HAZARD WARNING
LAMPS" .
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT

Intelligent Key system. Refer to BL-80, "INTELLIGENT KEY SYSTEM" .