BCS-22
< SYSTEM DESCRIPTION >[BCM]
DIAGNOSIS SYSTEM (BCM)
After disconnecting the CONSULT vehicle interface (VI)
from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
DATA MONITOR
INTELLIGENT KEY
INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)INFOID:0000000009462006
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
SELF DIAGNOSTIC RESULT
Refer to BCS-52, "DTC Index".
DATA MONITOR
Monitor Item [Unit] Description
FAN ON SIG [On/Off] Indicates condition of fan switch.
AIR COND SW [On/Off] Indicates condition of A/C switch.
Monitor Item [Unit] Main Description
REQ SW -DR [On/Off] ×Indicates condition of door request switch LH.
REQ SW -AS [On/Off] ×Indicates condition of door request switch RH.
REQ SW -BD/TR [On/Off] ×Indicates condition of trunk opener request switch.
PUSH SW [On/Off] Indicates condition of push-button ignition switch.
SHFTLCK SLNID PER SPLY [On/Off] ×Indicates condition of power supply to shiftlock solenoid.
BRAKE SW 1 [On/Off] ×Indicates condition of brake switch.
BRAKE SW 2 [On/Off] Indicates condition of brake switch.
DETE/CANCL SW [On/Off] ×Indicates condition of P (park) position.
SFT PN/N SW [On/Off] ×Indicates condition of P (park) or N (neutral) position.
UNLK SEN -DR [On/Off] ×Indicates condition of door unlock sensor.
PUSH SW -IPDM [On/Off] Indicates condition of push-button ignition switch received from IPDM E/R
on CAN communication line.
IGN RLY1 -F/B [On/Off] Indicates condition of ignition relay 1 received from IPDM E/R on CAN
communication line.
DETE SW -IPDM [On/Off] Indicates condition of detent switch received from TCM on CAN communi-
cation line.
SFT PN -IPDM [On/Off] Indicates condition of P (park) or N (neutral) position from TCM on CAN
communication line.
SFT P -MET [On/Off] Indicates condition of P (park) position from TCM on CAN communication
line.
SFT N -MET [On/Off] Indicates condition of N (neutral) position from IPDM E/R on CAN commu-
nication line.
ENGINE STATE [STOP/START/CRANK/RUN] ×Indicates condition of engine state from ECM on CAN communication line.
VEH SPEED 1 [mph/km/h] ×Indicates condition of vehicle speed signal received from ABS on CAN
communication line.
VEH SPEED 2 [mph/km/h] ×Indicates condition of vehicle speed signal received from combination
meter on CAN communication line.
DOOR STAT -DR [LOCK/READY/UNLK] ×Indicates condition of driver side door status.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS
DIAGNOSIS SYSTEM (BCM)BCS-27
< SYSTEM DESCRIPTION > [BCM]
C
D E
F
G H
I
J
K L
B
A
O P
N
ACTIVE TEST
TRUNK
TRUNK : CONSULT Function (BCM - TRUNK)INFOID:0000000009462011
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
DATA MONITOR
THEFT ALM
THEFT ALM : CONSULT Function (BCM - THEFT ALM)INFOID:0000000009462012
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
DATA MONITOR
PUSH SW [On/Off] Indicates condition push-button ignition switch.
UNLK SEN -DR [On/Off] Indicates condition of door unlock sensor.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
DOOR SW-BK [On/Off] Indicates condition of trunk switch.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK-SW [On/Off] Indicates condition of lo ck signal from door key cylinder switch.
KEY CYL UN-SW [On/Off] Indicates condition of unl ock signal from door key cylinder switch.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key. Monitor Item [Unit] Description
Test item Description
BATTERY SAVER This test is able to check battery saver operation [On/Off].
Monitor Item [Unit] Description
PUSH SW [On/Off] Indicates condition of push-button ignition switch.
UNLK SEN -DR [On/Off] Indicates condition of door unlock sensor.
VEH SPEED 1 [km/h] Indicates vehicle speed signal received from ABS on CAN communication line.
TR CANCEL SW [On/Off] Indicates condition of trunk cancel switch.
TR/BD OPEN SW [On/Off] Indicates condition of trunk opener switch.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-TR/BD [On/Off] Indicates condition of trunk open signal from Intelligent Key.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-28
< SYSTEM DESCRIPTION >[BCM]
DIAGNOSIS SYSTEM (BCM)
ACTIVE TEST
WORK SUPPORT
RETAINED PWR
RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)INFOID:0000000009462013
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
DATA MONITOR
SIGNAL BUFFER
Monitored Item Description
REQ SW -DR [On/Off] Indicates condition of door request switch LH.
REQ SW -AS [On/Off] Indicates condition of door request switch RH.
REQ SW -BD/TR [ON/OFF] Indicates condition of trunk opener request switch.
PUSH SW [On/Off] Indicates condition of push-button ignition switch.
UNLK SEN -DR [On/Off] Indicates condition of door unlock sensor.
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
DOOR SW-RR [On/Off] Indicates condition of rear door switch RH.
DOOR SW-RL [On/Off] Indicates condition of rear door switch LH.
DOOR SW-BK [On/Off] Indicates condition of trunk switch.
CDL LOCK SW [On/Off] Indicates condition of lock signal from door lock and unlock switch.
CDL UNLOCK SW [On/Off] Indicates condition of unlock signal from door lock and unlock switch.
KEY CYL LK-SW [On/Off] Indicates condition of lock signal from door key cylinder switch.
KEY CYL UN-SW [On/Off] Indicates condition of unlock signal from door key cylinder switch.
TR/BD OPEN SW [On/Off] Indicates condition of trunk opener switch.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key.
RKE-TR/BD [On/Off] Indicates condition of trunk open signal from Intelligent Key.
Test Item Description
FLASHER This test is able to check turn signal lamp operation [LH/RH/Off].
THEFT IND This test is able to check se curity indicator lamp operation [On/Off].
VEHICLE SECURITY HORN This test is able to check vehicle security horn operation [On].
HEADLAMP(HI) This test is able to check vehicle security lamp operation [On].
Support Item Setting Description
SECURITY ALARM SET On Security alarm ON.
Off Security alarm OFF.
Monitor Item [Unit] Description
DOOR SW-DR [On/Off] Indicates condition of front door switch LH.
DOOR SW-AS [On/Off] Indicates condition of front door switch RH.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BCS-40
< ECU DIAGNOSIS INFORMATION >[BCM]
BCM (BODY CONTROL MODULE)
60
(L) Ground CAN high Input/
Output ——
61
(Y) Ground Rear defogger relay
output OutputRear window de-
fogger Active Battery voltage
Not activated 0V
62
(BR) Ground Starter relay output Output
Push-button igni-
tion switch ON When selector lever is in P
or N position and the brake
is depressed Battery voltage
When selector lever is in P
or N position and the brake
is not depressed 0V
64
(W) Ground Buzzer output Output Outside warning
buzzer Sounding 0V
Not sounding Battery voltage
66
(R) Ground Blower fan relay out-
put OutputPush-button igni-
tion switch OFF or ACC 0V
ON Battery voltage
67
(W) Ground Ignition electrical re-
lay output 2 OutputPush-button igni-
tion switch OFF or ACC 0V
ON Battery voltage
68
(P) Ground Dimmer signal output Output
Push-button igni-
tion switch ON Either of the following con-
ditions
• Lighting switch OFF
• The area around the ve- hicle is bright (Shine a
light on the optical sen-
sor) 0V
The area around the vehi-
cle is dark (Block the light
from the optical sensor) Battery voltage
69
(L) Ground CVT device output Output — Battery voltage
70
(G) Ground IPDM E/R ignition
output 1 OutputPush-button igni-
tion switch OFF or ACC 0V
ON Battery voltage
71
(V) Ground Driver request switch Input
Front door LH re-
quest switch ON (pressed) 0V
OFF (not pressed) 1.0V
72
(Y) Ground Passenger request
switch InputFront door RH re-
quest switch ON (pressed) 0V
OFF (not pressed) 1.0V
Te r m i n a l N o .
(Wire color) Description
Condition Va l u e
(Approx.)
Signal name Input/
Output
(+) (-)
JPMIA0016GB
JPMIA0016GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PRECAUTIONSBR-3
< PRECAUTION >
C
D E
G H
I
J
K L
M A
B
BR
N
O P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951709
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 severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied 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 Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric 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 three mi nutes before performing any service.
Precaution for Procedure without Cowl Top CoverINFOID:0000000009463677
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precaution for Brake SystemINFOID:0000000009463678
WARNING:
Clean any dust from the front brake and rear brake wi th a vacuum dust collector. Never blow with com-
pressed air.
CAUTION:
• Brake fluid use. Refer to MA-11, "FOR USA AND CANADA : Fluids and Lubricants"
.
• Do not reuse drained brake fluid.
• Do not spill or splash brake fluid on painted su rfaces. Brake fluid may seriously damage paint. Wipe
it off immediately and wash with wa ter if it gets on a painted surface.
• Always clean with new brake fluid when cleaning th e master cylinder, brake caliper and other com-
ponents.
• Do not use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and
cause improper operation.
• Always loosen the brake tube flar e nut with a flare nut wrench.
PIIB3706J
Revision: November 20132014 Altima NAM
BRAKE BOOSTERBR-29
< REMOVAL AND INSTALLATION >
C
D E
G H
I
J
K L
M A
B
BR
N
O P
5. Remove the snap pin (1) and clevis pin (2) from the brake pedal. CAUTION:
Do not reuse snap pin or clevis pin.
6. Disconnect the harness connectors from the ASCD cancel switch and stop lamp switch.
7. Disconnect the steering column assembly pinch bolt and position the steering column shaft aside. Refer to
ST-33, "Exploded View"
.
8. Remove the brake master cylinder. Refer to BR-26, "Removal and Installation"
.
9. Disconnect the fuel line main connections. Refer to FL-5, "Quick Connector"
.
10. Remove the cowl top. Refer to EXT-24, "Removal and Installation"
.
11. Remove the strut tower bar. Refer to FSU-19, "Exploded View"
.
12. Remove the wiper drive assembly. Refer to WW-64, "Removal and Installation"
.
13. Remove the cowl top extension.
14. Disconnect the vacuum hose from the brake booster.
15. Disconnect the active boost sensor harness connector.
16. Remove brake booster nuts.
17. Remove the brake booster.
18. Remove and discard the brake booster gasket. CAUTION:
Do not reuse brake booster gasket.
INSTALLATION
Installation is in the reverse order of removal.
• Prior to installation, loosen clevis lock nut (1) and adjust input rod (2) to the specified value (B).
• After input rod adjustment (B), temporarily tighten clevis lock nut for installation of brake booster.
• Connect the battery negative terminal. Refer to PG-7, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement".
Removal and Installation - VQ35DEINFOID:0000000009463708
CAUTION:
• Do not deform or bend brake tube while removing and installing brake booster.
• Do not reuse snap pin or clevis pin.
• Do not reuse brake booster gasket.
• Do not damage brake booster stud bolt threads. If brake booster is tilted during service, the dash
panel may damage the threads.
REMOVAL
1. Release the fuel pressure from the fuel system. Refer to EC-687, "Work Procedure".
JPFIA0019ZZ
Length (B) : Refer to BR-49, "Brake Booster".
ALFIA0299ZZ
Revision: November 20132014 Altima NAM
BR-30
< REMOVAL AND INSTALLATION >
BRAKE BOOSTER
2. Disconnect the battery negative cable. Refer to PG-73, "Removal and Installation (Battery)".
3. Remove the instrument lower panel LH. Refer to IP-21, "Removal and Installation"
.
4. Remove accelerator pedal assembly. Refer to ACC-3, "Removal and Installation"
.
5. Remove the brake pedal. Refer to BR-18, "Removal and Installation"
.
6. Loosen the clevis lock nut (A) and remove the clevis bracket (B) from the input rod (C).
7. Remove the brake master cylinder. Refer to BR-26, "Removal and Installation"
.
8. Remove the vacuum hose. Refer to BR-31, "Exploded View"
.
9. Disconnect the fuel line main connections. Refer to FL-5, "Quick Connector"
.
10. Remove the cowl top. Refer to EXT-24, "Removal and Installation"
.
11. Remove the strut tower bar. Refer to FSU-19, "Exploded View"
.
12. Remove the wiper drive assembly. Refer to WW-64, "Removal and Installation"
.
13. Remove the cowl top extension.
14. Disconnect the active boost sensor harness connector.
15. Remove the brake booster.
16. Remove and discard the brake booster gasket. CAUTION:
Do not reuse brake booster gasket.
INSTALLATION
Installation is in the reverse order of removal.
• Prior to installation, loosen clevis lock nut (1) and adjust input rod (2) to the specified value (B).
• After input rod adjustment (B), temporarily tighten clevis lock nut for installation of brake booster.
• Connect the battery negative terminal. Refer to PG-7, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement".
:Front
ALFIA0319ZZ
Length (B) : Refer to BR-49, "Brake Booster".
ALFIA0299ZZ
Revision: November 20132014 Altima NAM
BRC-1
BRAKES
C
D E
G H
I
J
K L
M
SECTION BRC
A
B
BRC
N
O P
CONTENTS
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTION ................ ...............................
4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution for Brake System ....................................4
Precaution for Brake Control .....................................5
Precaution for CAN System ................................ ......5
Precaution for Work ..................................................6
PREPARATION ............................................7
PREPARATION .............................................. .....7
Special Service Tool ........................................... ......7
Commercial Service Tool ..........................................7
SYSTEM DESCRIPTION ..............................8
COMPONENT PARTS ................................... .....8
Component Parts Location .................................. ......8
Component Description .............................................9
ABS Actuator and Electric Unit (Control Unit) ...........9
Wheel Sensor and Sensor Rotor ............................10
Stop Lamp Switch ...................................................10
Steering Angle Sensor ............................................10
Brake Fluid Level Switch .........................................10
Vacuum Sensor .......................................................10
Parking Brake Switch ..............................................11
VDC OFF Switch .....................................................11
SYSTEM .............................................................12
VDC/TCS/ABS ....................................................... ....12
VDC/TCS/ABS : System Diagram ...........................12
VDC/TCS/ABS : System De scription ......................12
VDC/TCS/ABS : VDC Functi on ...............................23
VDC/TCS/ABS : TCS Functi on ...............................25
VDC/TCS/ABS : ABS Function ........................... ....27
VDC/TCS/ABS : EBD Functi on ...............................28
VDC/TCS/ABS : Fail-safe ... .....................................29
DIAGNOSIS SYSTEM [ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)] .......
33
CONSULT Function (ABS) .................................. ....33
ECU DIAGNOSIS INFORMATION ..............38
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................
38
Reference Value .................................................. ....38
Fail-safe ...................................................................41
DTC Inspection Priority Chart ..................................44
DTC Index ...............................................................45
WIRING DIAGRAM ......................................47
BRAKE CONTROL SYSTEM ...........................47
Wiring Diagram .................................................... ....47
BASIC INSPECTION ...................................55
DIAGNOSIS AND REPAIR WORK FLOW .......55
Work Flow ............................................................ ....55
Diagnostic Work Sheet ............................................56
ADDITIONAL SERVICE WHEN REPLACING
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................
57
Description ........................................................... ....57
ADJUSTMENT OF STEERING ANGLE SEN-
SOR NEUTRAL POSITION ...............................
58
Description ........................................................... ....58
Work Procedure .......................................................58
CONFIGURATION [ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT)] ................
60
Work Procedure ................................................... ....60
CALIBRATION OF DECEL G SENSOR ...........62
Description ...............................................................62
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM