2006 NISSAN VERSA ECU

BCM (BODY CONTROL MODULE)
BCS-7
C
D
E
F
G
H
I
J
L
MA
B
BCS
Revision: June 20062007 Versa

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" .

BCM (BODY CONTROL MODULE)
BCS-13
C
D
E
F
G
H
I
J
L
MA
B
BCS
Revision: June 20062007 Versa
19 BRRemote keyless entry
receiver (power sup-
ply)Output OFF Ignition switch OFF
20 GRemote keyless entry
receiver signal (sig-
nal)Input OFFStand-by (keyfob buttons
released)
When remote keyless entry
receiver receives signal from
keyfob (keyfob buttons
pressed)
21 P NATS antenna amp.Input/
OutputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
23 RSecurity indicator
lampOutput OFFGoes OFF → illuminates
(Every 2.4 seconds)Battery voltage → 0V
25 LG NATS antenna amp.Input/
OutputOFF →
ONIgnition switch (OFF → ON)Just after turning ignition switch
ON: Pointer of tester should
move for approx. 1 second, then
return to battery voltage.
26 GR Thermo control amp. Input ON A/C switch ON
27 OCompressor ON sig-
nalInput ONA/C switch OFF 5V
A/C switch ON 0V
28 P Front blower monitor Input ONFront blower motor OFF Battery voltage
Front blower motor ON 0V
29 L Hazard switch Input OFFON 0V
OFF 5V
30
*1VBack door open out-
putOutput —Back door open (switch
closed)0V
Back door closed (switch
open)5V
30
*2VBack door opener
switchInput —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V TerminalWire
colorSignal nameSignal
input/
outputMeasuring condition
Reference value or waveform
(Approx.) Ignition
switchOperation or condition
LIIA1893E
LIIA1894E
LIIA1895E
ZJIA0719J

BCM (BODY CONTROL MODULE)
BCS-17
C
D
E
F
G
H
I
J
L
MA
B
BCS
Revision: June 20062007 Versa
CONSULT-II Function (BCM)EKS00I87
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
ITEMS OF EACH PART
NOTE:
CONSULT-II will only display systems the vehicle possesses.
BCM diagnostic
test itemDiagnostic mode Content
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT
MNTRThe results of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
System and itemCONSULT-II dis-
playDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG
RESULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERACTIVE
TESTCON-
FIGU-
RATION
BCM BCM×× × × ×
Power door lock sys-
temDOOR LOCK×××
Rear defoggerREAR DEFOG-
GER××
Warning chime BUZZER××
Room lamp timer INT LAMP×××
Remote keyless entry
systemMULTI REMOTE
ENT×××
Headlamp HEAD LAMP×××
Wiper WIPER×××
Turn signal lamp
Hazard lampFLASHER××
Blower fan switch sig-
nal
Air conditioner switch
signalAIR CONDI-
TIONER×
Intelligent KeyINTELLIGENT
KEY×
Combination switch COMB SW×
NVIS (NATS) IMMU××
Interior lamp battery
saverBATTERY
SAVER×××
Back door TRUNK××
Theft alarm THEFT ALARM×××
Retained accessory
power controlRETAINED PWR×××

BCS-18
BCM (BODY CONTROL MODULE)
Revision: June 20062007 Versa
WORK SUPPORT
Display Item List
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)EKS00I88
1. SELF-DIAGNOSTIC RESULT CHECK
NOTE:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in
self-diagnosis depending on control unit which carries out CAN communication.
1. Connect CONSULT–II and CONSULT-II CONVERTER, and select “BCM” on “SELECT SYSTEM” screen.
2. Select “BCM” on “SELECT TEST ITEM” screen, and select “SELF-DIAG RESULTS”.
3. Check display content in self-diagnostic results.
Contents displayed
No malfunction>>Inspection End
Malfunction in CAN communication system>>After printing the monitor items, go to “CAN System”. Refer to
LAN-7, "
TROUBLE DIAGNOSIS" .
Oil pressure switch SIGNAL BUFFER××
Low tire pressure mon-
itorAIR PRESSURE
MONITOR×× × ×
Panic alarm PANIC ALARM× System and itemCONSULT-II dis-
playDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG
RESULTSCAN DIAG
SUPPORT
MNTRDATA
MONITORECU
PA R T
NUMBERACTIVE
TESTCON-
FIGU-
RATION
Item Description
RESET SETTING VALUE Return a value set with WORK SUPPORT of each system to a default value in factory shipment.
CONSULT-II display code Diagnosis item
U1000INITIAL DIAG
TRANSMIT DIAG
ECM
IPDM E/R
METER/M&A
I-KEY

BCS-24
BCM (BODY CONTROL MODULE)
Revision: June 20062007 Versa
12. Wait until the next screen during setting.
13. WRITE CONFIGURATION results are printed out automatically.
Confirm "WRITE CONFIGURATION" is correctly executed by
comparing sheet automatically printed out with applicable con-
figuration list shown in step 9.
14. Touch "OK" on "WRITE CONFIGURATION" screen.
WRITE CONFIGURATION is completed.
LKIA0398E
WKIA3040E
LKIA0400E

BL-1
BODY, LOCK & SECURITY SYSTEM
I BODY
CONTENTS
C
D
E
F
G
H
J
K
L
M
SECTION BL
A
B
BL
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Procedures without Cowl Top Cover ..... 6
Precautions for Work ................................................ 6
PREPARATION ........................................................... 7
Special service tool .................................................. 7
Commercial Service Tools ........................................ 7
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 8
Work Flow ................................................................ 8
CUSTOMER INTERVIEW ..................................... 8
DUPLICATE THE NOISE AND TEST DRIVE ....... 9
CHECK RELATED SERVICE BULLETINS ........... 9
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 9
REPAIR THE CAUSE ........................................... 9
CONFIRM THE REPAIR ..................................... 10
Generic Squeak and Rattle Troubleshooting ......... 10
INSTRUMENT PANEL ........................................ 10
CENTER CONSOLE ........................................... 10
DOORS ............................................................... 10
TRUNK .................................................................11
SUNROOF/HEADLINING ....................................11
OVERHEAD CONSOLE (FRONT AND REAR) ....11
SEATS ..................................................................11
UNDERHOOD ......................................................11
Diagnostic Worksheet ............................................ 12
HOOD ....................................................................... 14
Fitting Adjustment .................................................. 14
FRONT END HEIGHT ADJUSTMENT AND LAT-
ERAL/LONGITUDINAL CLEARANCE ADJUST-
MENT .................................................................. 14
SURFACE MISMATCH ADJUSTMENT .............. 14
Removal and Installation ........................................ 15
HOOD ASSEMBLY ............................................. 15
HOOD HINGE ..................................................... 16Removal and Installation of Hood Lock Control ..... 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 18
Hood Lock Control Inspection ................................ 19
RADIATOR CORE SUPPORT .................................. 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSTALLATION ................................................... 21
FRONT FENDER ...................................................... 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSTALLATION ................................................... 22
POWER DOOR LOCK SYSTEM .............................. 23
Component Parts and Harness Connector Location ... 23
System Description ................................................. 24
LOCK OPERATION ............................................. 24
UNLOCK OPERATION ........................................ 24
OUTLINE ............................................................. 25
CAN Communication System Description .............. 25
Schematic ............................................................... 26
WITHOUT INTELLIGENT KEY SYSTEM ............ 26
Wiring Diagram — D/LOCK — ............................... 27
WITHOUT INTELLIGENT KEY SYSTEM ............ 27
Schematic ............................................................... 31
WITH INTELLIGENT KEY SYSTEM ................... 31
Wiring Diagram — D/LOCK — ............................... 32
WITH INTELLIGENT KEY SYSTEM ................... 32
Terminals and Reference Value for BCM ............... 37
Work Flow ............................................................... 37
CONSULT–II Function (BCM) ................................ 37
CONSULT–II START PROCEDURE ................... 37
WORK SUPPORT ............................................... 37
DATA MONITOR ................................................. 37
ACTIVE TEST ..................................................... 38
Trouble Diagnoses Symptom Chart ....................... 39
BCM Power Supply and Ground Circuit ................. 40
Door Switch Check ................................................. 40
Key Switch (Insert) Check ...................................... 43
Door Lock and Unlock Switch Check ..................... 45
Front Door Lock Assembly LH (Actuator) Check .... 48

BL-3
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: June 20062007 Versa Check Warning Chime in Combination Meter ...... 156
Hazard Function Check ........................................ 157
Horn Function Check ........................................... 157
Headlamp Function Check ................................... 158
Intelligent Key Battery Replacement .................... 159
DISASSEMBLY AND ASSEMBLY OF INTELLI-
GENT KEY ........................................................ 159
INTELLIGENT KEY BATTERY INSPECTION ... 159
Remote Keyless Entry Function ........................... 159
Removal and Installation of Intelligent Key Unit ... 160
REMOVAL ......................................................... 160
INSTALLATION ................................................. 160
DOOR ..................................................................... 161
Fitting Adjustment ................................................ 161
FRONT DOOR .................................................. 161
REAR DOOR .................................................... 163
BACK DOOR ..................................................... 164
Removal and Installation ...................................... 165
FRONT DOOR .................................................. 165
REAR DOOR .................................................... 166
BACK DOOR ..................................................... 167
FRONT DOOR LOCK ............................................. 169
Component Parts Location ................................... 169
Removal and Installation ...................................... 169
REMOVAL ......................................................... 169
INSTALLATION ................................................. 171
REAR DOOR LOCK ............................................... 172
Component Parts Location ................................... 172
Removal and Installation ...................................... 172
REMOVAL ......................................................... 172
INSTALLATION ................................................. 174
BACK DOOR LOCK ............................................... 175
Component Parts and Harness Connector Location . 175
System Description .............................................. 176
Wiring Diagram — TLID — .................................. 177
WITHOUT INTELLIGENT KEY SYSTEM ......... 177
WITH INTELLIGENT KEY SYSTEM ................. 178
Terminals and Reference Values for BCM ........... 179
Terminals and Reference Values for Intelligent Key
Unit ....................................................................... 179
CONSULT-II Function (BCM) ............................... 179
CONSULT-II START PROCEDURE .................. 179
CONSULT-II APPLICATION ITEMS .................. 180
Work Flow ............................................................ 180
Trouble Diagnosis Chart by Symptom .................. 180
BCM Power Supply and Ground Circuit ............... 180
Check Back Door Opener Switch Circuit (Without
Intelligent Key or Power Windows) ...................... 181
Check Back Door Opener Switch Circuit (Without
Intelligent Key, With Power Windows) .................. 184
Check Back Door Opener Switch Circuit (With Intel-
ligent Key) ............................................................ 187
Check Back Door Lock Assembly (Actuator) Circuit . 189
Removal and Installation ...................................... 190
BACK DOOR LOCK .......................................... 190
BACK DOOR HANDLE ..................................... 191FUEL FILLER LID OPENER ...................................192
Removal and Installation of Fuel Filler Lid Opener .192
REMOVAL .........................................................192
INSTALLATION .................................................192
VEHICLE SECURITY (THEFT WARNING) SYSTEM .193
Component Parts and Harness Connector Location .193
System Description ...............................................194
DESCRIPTION ..................................................194
POWER SUPPLY AND GROUND ....................194
INITIAL CONDITION TO ACTIVATE THE SYS-
TEM ...................................................................195
VEHICLE SECURITY SYSTEM ALARM OPER-
ATION ................................................................195
VEHICLE SECURITY SYSTEM DEACTIVATION .195
PANIC ALARM OPERATION ............................195
CAN Communication System Description ............196
Schematic .............................................................197
Wiring Diagram — VEHSEC — ............................198
..........................................................................198
Terminals and Reference Values for BCM ............202
Terminals and Reference Values for Intelligent Key
Unit .......................................................................202
CONSULT-II Function (BCM) ...............................202
CONSULT-II START PROCEDURE ..................202
CONSULT-II APPLICATION ITEM ....................202
Trouble Diagnosis .................................................204
WORK FLOW ....................................................204
Preliminary Check ................................................205
Symptom Chart .....................................................206
Diagnostic Procedure 1 ........................................207
Diagnostic Procedure 2 ........................................210
Diagnostic Procedure 3 ........................................211
Diagnostic Procedure 4 ........................................211
Diagnostic Procedure 5 ........................................211
Diagnostic Procedure 6 ........................................211
NATS (NISSAN ANTI-THEFT SYSTEM) ................212
Component Parts and Harness Connector Location .212
System Description ...............................................213
DESCRIPTION ..................................................213
SECURITY INDICATOR ....................................213
System Composition .............................................213
ECM Re-communicating Function ........................214
Wiring Diagram — NATS — .................................215
Terminals and Reference Values for BCM ............216
CONSULT-II Function ...........................................216
CONSULT-II INSPECTION PROCEDURE ........216
CONSULT-II DIAGNOSTIC TEST MODE FUNC-
TION ..................................................................217
HOW TO READ SELF-DIAGNOSTIC RESULTS .217
NATS SELF-DIAGNOSTIC RESULTS ITEM
CHART ..............................................................218
Trouble Diagnosis Procedure ...............................219
PRELIMINARY CHECK .....................................219
WORK FLOW ....................................................220
Trouble Diagnoses ...............................................222
SYMPTOM MATRIX CHART 1 ..........................222
SYMPTOM MATRIX CHART 2 ..........................222
Diagnostic Procedure 1 ........................................223
Diagnostic Procedure 2 ........................................225

SQUEAK AND RATTLE TROUBLE DIAGNOSES
BL-9
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: June 20062007 Versa
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.

Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.

If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area.To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear: J-39565 and mechanic's stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:

removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fasteners can be bro-
ken or lost during the repair, resulting in the creation of new noise.

tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only
temporarily.

feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.

placing a piece of paper between components that you suspect are causing the noise.

looking for loose components and contact marks.
Refer to BL-10, "
Generic Squeak and Rattle Troubleshooting" .
REPAIR THE CAUSE

If the cause is a loose component, tighten the component securely.

If the cause is insufficient clearance between components:
–separate components by repositioning or loosening and retightening the component, if possible.
–insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A NISSAN Squeak and Rattle Kit (J-43980) is available through your authorized NISSAN
Parts Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the NISSAN Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100×135 mm (3.94×5.31 in)/76884-71L01: 60×85 mm (2.36×3.35 in)/76884-71L02: 15×25
mm (0.59×0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50×50 mm (1.97×1.97 in)/73982-50Y00: 10 mm (0.39 in) thick,
50×50 mm (1.97×1.97 in)
INSULATOR (Light foam block)