Page 817 of 2896
BR-34
REAR DRUM BRAKE
Revision: June 20062007 Versa
Disassembly and Assembly of Wheel CylinderEFS006JW
DISASSEMBLY
1. Remove boots at the right and left of the wheel cylinder, and pull
out the pistons from cylinder.
2. Remove piston from piston cup.
INSPECTION AFTER DISASSEMBLY
Check the pistons, piston cups, and inner wall of the cylinder for wear, corrosion, and damage. If malfunction
is detected, replace it.
ASSEMBLY
CAUTION:
Do not use Nissan rubber grease (KRE0000010, KRE000001001) during assembly.
When inserting the piston, be careful not to scratch the cylinder.
1. Apply brake fluid to the piston sliding surface on the wheel cylinder.
2. Apply Nissan rubber lubricant (KRE1200030) to the piston cups
and piston boots and assemble as shown.
SFIA3077E
SFIA3078E
Page 818 of 2896

SERVICE DATA AND SPECIFICATIONS (SDS)
BR-35
C
D
E
G
H
I
J
K
L
MA
B
BR
Revision: June 20062007 Versa
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEFS006JX
Brake PedalEFS006JY
Unit: mm (in)
Check ValveEFS006JZ
Brake BoosterEFS006K0
Vacuum type
Front Disc Brake EFS006K1
Unit: mm (in) Front brake Brake model CLZ25VA
Cylinder bore diameter 57.2 mm (2.252 in)
Pad
Length × width × thickness11 5 . 0 m m × 41.0 mm × 9.5 mm
(4.528 in × 1.614 in × 0.374 in)
Rotor outer diameter × thickness 260 mm × 22.0 mm (10.24 in × 0.866 in)
Rear brake Brake model LT20D
Cylinder bore diameter 15.87 mm (0.625 in)
Lining
Length × width × thickness194.1 mm × 30.0 mm × 4.0 mm
(7.642 in × 1.181 in × 0.157 in)
Drum outer diameter 228.6 mm (9.000 in)
Master cylinder Cylinder bore diameter 22.22 mm (0.875 in)
Control valve Valve model Electric brake force distribution
Brake booster Booster model C255
Diaphragm diameter 255 mm (10.04 in)
Recommended brake fluid Refer to MA-11, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
Brake pedal free height (from dash panel top surface)A/T, CVT model 172.4 - 182.4 (6.79 - 7.18)
M/T model 162.3 - 172.3 (6.39 - 6.78)
Brake pedal depressed height
[under a force of 490 N (50 kg-f, 110 lb-f) with the engine running]A/T, CVT model 98 (3.86) or more
M/T model 90 (3.54) or more
Clearance between brake pedal lever and the threaded end of stop lamp switch 0.74 - 1.96 (0.0291 - 0.0772)
Pedal play3 - 11 (0.12 - 0.43)
Vacuum leakage
[at vacuum of – 66.7 kPa (– 500 mmHg, – 19.69 inHg]Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds
Vacuum leakage
[at vacuum of – 66.7 kPa (– 500 mmHg, –19.69 inHg)]Within 3.3 kPa (25 mmHg, 0.98 inHg) of vacuum for 15 seconds
Input rod installation standard dimension 154 - 161 mm (6.06 - 6.34 in)
Brake modelCLZ25VA
Brake padStandard thickness (new) 9.5 (0.374)
Repair limit thickness 2.0 (0.079)
Disc rotorStandard thickness (new) 24.0 (0.945)
Repair limit thickness 22.0 (0.866)
Runout limit 0.04 (0.0016)
Maximum uneven wear (mea-
sured at 8 positions)0.02 mm (0.0008 in) or less
Page 819 of 2896
BR-36
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: June 20062007 Versa
Rear Drum BrakeEFS006K2
Unit: mm (in)
Brake modelLT20D
Brake liningStandard thickness (new) 4.0 (0.157)
Repair limit thickness 1.5 (0.059)
DrumStandard inner diameter (new) 228.6 (9.000)
Repair limit inner diameter 230.0 (9.055)
Page 820 of 2896

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION BRC
A
B
BRC
Revision: June 20062007 VersaABS
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions for Brake System .................................. 2
Precautions When Using CONSULT-II ..................... 2
CHECK POINTS FOR USING CONSULT-II ......... 2
Precautions for Brake Control .................................. 3
Precautions for CAN System ................................... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
SYSTEM DESCRIPTION ............................................ 5
System Components ................................................ 5
ABS Function ........................................................... 5
EBD Function ........................................................... 5
Fail-Safe Function .................................................... 6
ABS/EBD SYSTEM ............................................... 6
Hydraulic Circuit Diagram ........................................ 6
CAN COMMUNICATION ............................................ 7
System Description .................................................. 7
TROUBLE DIAGNOSIS .............................................. 8
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ....................................................... 8
INTRODUCTION ................................................... 8
WORK FLOW ........................................................ 9
CLARIFY CONCERN .......................................... 10
EXAMPLE OF DIAGNOSIS SHEET ................... 10
Component Parts and Harness Connector Location ....11
Schematic .............................................................. 12
Wiring Diagram — ABS — ..................................... 13
Basic Inspection ..................................................... 17
BRAKE FLUID LEVEL, FLUID LEAK, AND
BRAKE PAD INSPECTION ................................. 17
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION ............................. 17
ABS WARNING LAMP INSPECTION ................. 17
Warning Lamp and Indicator Timing ....................... 18
Control Unit Input/Output Signal Standard ............. 18
REFERENCE VALUE FROM CONSULT-II ......... 18
CONSULT-II Function (ABS) .................................. 20
CONSULT-II START PROCEDURE .................... 20
SELF-DIAGNOSIS .............................................. 20
DATA MONITOR ................................................. 22
ACTIVE TEST ..................................................... 24
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................ 25
Wheel Sensor System ............................................ 25
ABS Control Unit Inspection ................................... 26
Solenoid Valve System Inspection ......................... 27
Actuator Motor, Motor Relay, and Circuit Inspection ... 28
ABS Control Unit Power and Ground Systems
Inspection ............................................................... 29
CAN Communication System Inspection ................ 29
TROUBLE DIAGNOSES FOR SYMPTOMS ............ 30
ABS Works Frequently ........................................... 30
Unexpected Pedal Action ....................................... 31
Long Stopping Distance .......................................... 32
ABS Does Not Work ............................................... 32
Pedal Vibration or ABS Operation Noise ................ 32
WHEEL SENSORS ................................................... 33
Removal and Installation ........................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 33
SENSOR ROTOR ..................................................... 35
Removal and Installation ........................................ 35
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 36
Removal and Installation ........................................ 36
REMOVAL ........................................................... 36
INSTALLATION ................................................... 37
Page 821 of 2896
![NISSAN VERSA 2006 Workshop Service Repair Manual BRC-2
[ABS]
PRECAUTIONS
Revision: June 20062007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS006L7
The Supplementa NISSAN VERSA 2006 Workshop Service Repair Manual BRC-2
[ABS]
PRECAUTIONS
Revision: June 20062007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS006L7
The Supplementa](/manual-img/5/57401/w960_57401-820.png)
BRC-2
[ABS]
PRECAUTIONS
Revision: June 20062007 Versa
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS006L7
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.
Precautions for Brake System EFS006L8
CAUTION:
Refer to MA-11, "RECOMMENDED FLUIDS AND LUBRICANTS" for recommended brake fluid.
Never reuse drained brake fluid.
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
To clean or wash all parts of master cylinder and disc brake caliper, use clean brake fluid.
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic
system.
Use flare nut wrench when removing and installing brake
tube.
If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
Turn the ignition switch OFF and remove the connector of
the ABS actuator and electric unit (control unit) or the bat-
tery terminal before performing the work.
Always torque brake lines when installing.
Burnish the brake contact surfaces after refinishing or
replacing rotors, after replacing pads, or if a soft pedal
occurs at very low mileage. Refer to BR-29, "
Brake Burnishing Procedure" .
WAR NIN G:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions When Using CONSULT-IIEFS006L9
When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
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.
CHECK POINTS FOR USING CONSULT-II
1. Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?
If YES, GO TO 2.
If NO, GO TO 5.
SBR6 86 C
Page 822 of 2896
![NISSAN VERSA 2006 Workshop Service Repair Manual PRECAUTIONS
BRC-3
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: June 20062007 Versa
2. Are there any self-diagnostic items, other than those relating to CAN communication system, in the self-
diagnosis r NISSAN VERSA 2006 Workshop Service Repair Manual PRECAUTIONS
BRC-3
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: June 20062007 Versa
2. Are there any self-diagnostic items, other than those relating to CAN communication system, in the self-
diagnosis r](/manual-img/5/57401/w960_57401-821.png)
PRECAUTIONS
BRC-3
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: June 20062007 Versa
2. Are there any self-diagnostic items, other than those relating to CAN communication system, in the self-
diagnosis results?
If YES, GO TO 3.
If NO, GO TO 4.
3. Based on self-diagnosis results unrelated to CAN communication, carry out the inspection.
4. Malfunctions may be detected in self-diagnosis depending on control units carrying out CAN communica-
tion. Therefore, erase the self-diagnosis results.
5. Diagnose CAN communication system. Refer to LAN-44, "
TROUBLE DIAGNOSIS" .
Precautions for Brake ControlEFS006LA
During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or motor operating noises may be heard from
engine compartment. This is normal due to the self check operation.
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnosis. Besides electrical system inspection, check brake booster operation, brake fluid level, and fluid
leaks.
If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
If there is a radio, antenna or related wiring near the control module, ABS function may have a malfunction
or error.
If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits or improper wiring.
Precautions for CAN SystemEFS006LB
Do not apply voltage of 7.0V or higher to terminal to be measured.
Maximum open terminal voltage of tester in use must be less than 7.0V.
Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
Area to be repaired must be soldered and wrapped with tape.
Make sure that fraying of twisted wire is within 110 mm (4.33 in).
Do not make a bypass connection to repaired area. (If the circuit
is bypassed, characteristics of twisted wire will be lost.)
PKIA0306E
PKIA0307E
Page 823 of 2896
BRC-4
[ABS]
PREPARATION
Revision: June 20062007 Versa
PREPARATIONPFP:00002
Special Service ToolsEFS006M7
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsEFS006M8
Tool number
(Kent-Moore No.)
Tool nameDescription
KV991J0080
(J-45741)
ABS active wheel sensor testerChecking operation of ABS active wheel sen-
sors
WFIA0101E
Tool nameDescription
1. Flare nut crowfoot
2. Torque wrenchRemoving and installing brake piping
a: 10 mm (0.39 in)/12 mm (0.47 in)
S-NT360
Page 824 of 2896
![NISSAN VERSA 2006 Workshop Service Repair Manual SYSTEM DESCRIPTION
BRC-5
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: June 20062007 Versa
SYSTEM DESCRIPTIONPFP:00000
System ComponentsEFS006LC
ABS FunctionEFS006LD
The Anti-Lock Brake System detects w NISSAN VERSA 2006 Workshop Service Repair Manual SYSTEM DESCRIPTION
BRC-5
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: June 20062007 Versa
SYSTEM DESCRIPTIONPFP:00000
System ComponentsEFS006LC
ABS FunctionEFS006LD
The Anti-Lock Brake System detects w](/manual-img/5/57401/w960_57401-823.png)
SYSTEM DESCRIPTION
BRC-5
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: June 20062007 Versa
SYSTEM DESCRIPTIONPFP:00000
System ComponentsEFS006LC
ABS FunctionEFS006LD
The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding
obstacles during emergency braking.
If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
The electrical system can be diagnosed using CONSULT-II.
During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or motor operating noises may be heard from
the engine compartment. This is normal due to the self check operation.
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
EBD FunctionEFS006LE
Electronic Brake Distribution is a function that detects subtle slippages between the front and rear wheels
during braking, and it improves handling stability by electronically controlling the brake fluid pressure
which results in reduced rear wheel slippage.
If the electrical system malfunctions, the Fail-Safe function is activated, the EBD and ABS become inoper-
ative, and the ABS warning lamp and brake warning lamp are turned on.
The electrical system can be diagnosed using CONSULT-II.
During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
Just after starting the vehicle, the brake pedal may vibrate or motor operating noises may be heard from
the engine compartment. This is normal due to the self check operation.
WFIA0118E