2005 NISSAN X-TRAIL warning

BR-32
REAR DISC BRAKE

REAR DISC BRAKEPFP:44000
ComponentEFS0017X
WARNING:

Clean dust on brake caliper and pad with a vacuum dust collector. Do not blow with compressed
air.
CAUTION:

Never depress brake pedal while removing cylinder body because piston will pop out.

Do not remove brake hose and torque member mounting bolts unless disassembling or replacing
caliper assembly. Hang the cylinder body with a wire so that the brake hose is not under tension.

Be careful not to damage piston boot. Do not allow brake fluid to get the rotor.

When replacing brake pads, always replace inner shims, outer shims, and shim covers as a set.
InspectionEFS0017Y
PAD WEAR INSPECTION
Check pad thickness by lifting vehicle, removing tyre and wheel, and
looking through check hole on cylinder body. If necessary, use a
scale.
1. Pad retainer 2. Outer shim cover 3. Outer shim
4. Outer pad 5. Pad retainer 6. Inner pad
7. Inner shim 8. Inner shim cover 9. Sliding pin boot
10. Sliding pin 11. Sliding pin bolt 12. Cylinder body
13. Copper washer 14. Brake hose 15. Union bolt
16. Copper washer 17. Bleed valve 18. Piston seal
19. Piston 20. Piston boot 21. Retaining ring
22. Torque member
SFIA2143E
standard thickness : 8.5 mm (0.335 in)
pad wear limit : 2.0 mm (0.079 in)
BRA0010D

BR-34
REAR DISC BRAKE

Caliper Removal and InstallationEFS00180
REMOVAL
1. Connect a vinyl tube to bleed valve.
2. Drain brake fluid gradually from bleed valve while depressing
brake pedal.
3. Remove union bolt and remove brake hose from caliper assem-
bly.
4. Remove union bolts and torque member mounting bolts, and
remove caliper assembly.
5. Remove disc rotor.
INSTALLATION
CAUTION:

Refill with new brake fluid “DOT 3 or DOT 4”.

Never reuse drained brake fluid.
1. Install disc rotor.
2. Install caliper assembly. Tighten mounting bolts to the specified torque.
CAUTION:
Wipe brake fluid and grease on axle assembly washer seats and caliper assembly mounting sur-
face. Install caliper assembly.
3. Connect brake hose to caliper assembly and tighten union bolts to the specified torque.
CAUTION:

Do not reuse the copper washer for union bolts.

Securely assemble brake hose to protrusions on cylinder body.
4. Bleed air. Refer to BR-9, "
Bleeding Brake System" .
Caliper Disassembly and AssemblyEFS00181
DISASSEMBLY
WARNING:
Be careful not to pinch your fingers in the piston.
CAUTION:
Be careful not to damage the cylinder inner wall.
1. Remove caliper assembly from vehicle.
2. Remove sliding pin from cylinder body. Then remove pads, shims, shim covers, and pad retainers from
caliper assembly.
3. Remove sliding pin boots from torque member.
4. Using flat-bladed screwdriver (as shown in the figure), remove
retaining ring.
SFIA0143E
SBR028A

PB-2
PARKING BRAKE CONTROL

PARKING BRAKE CONTROLPFP:36010
Components EFS0017I
NOTE:
In regard to the notation of torque in the illustration, “NEW” shows an ISO standard, “OLD” shows a conven-
tional standard, and the measurements of hexagonal width across flats are in parentheses.
Removal and InstallationEFS0017J
REMOVAL
1. Remove center console.
2. Disconnect parking brake warning lamp switch connector.
3. Remove cable mounting bolt. Loosen cable and remove adjust-
ing nut.
4. Remove cable from toggle lever of disc brake.
INSTALLATION
CAUTION:
Do not reuse adjusting nut.
1. Operate parking brake lever with a force of 196 N (20 kg, 44 lb). Check a stroke is within specified number
of notches. (Check it by hearing clicks of ratchet.)
1. Control lever assembly 2. Cap 3. Parking brake warning lamp switch
4. Screw 5. Adjusting nut 6. Front cable
7. RH rear cable 8. LH rear cable :Multi-purpose grease
SFIA3052E
SFIA2453E
Lever stroke : 6 - 7 notches

PARKING BRAKE CONTROL
PB-3
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PB

2. Check control lever assembly for bend, damage and cracks, and replace if there is.
3. Check cables and equalizer for wear and damage. If a malfunction is detected, replace the applicable
part.
4. Check parking brake warning lamp switch. If a malfunction is detected, replace the applicable part.
5. Check each part for deformation, or damage by contact with other parts. If a malfunction is detected,
replace the applicable part.
AdjustmentEFS0017M
1. Insert a deep-well socket wrench into opening of parking brake
lever. Rotate adjusting nut to fully loosen cable. Return parking
brake lever and adjust rear brake shoe clearance.
2. Rotate tyres & foot wheels to be sure that there is no drag.
3. After adjusting clearance of rear shoes, with no drag on rear
brake, adjust cable as follows:
a. Pull parking brake lever up so that a deep-well socket wrench
can be inserted.
b. Insert a deep-well socket wrench into opening of parking brake
lever. Rotate adjusting nut to adjust a lever stroke.
CAUTION:
Do not reuse adjusting nut after removing it.
c. Operate parking brake lever 3 to 4 times with a force of 196 N
(20 kg, 44 lb). Be sure lever stroke is within the specified num-
ber of notches.
d. Return parking brake lever completely. Be sure there is no drag on rear brake.
SFIA2453E
MAA0182D

SERVICE DATA AND SPECIFICATIONS (SDS)
PB-9
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Parking BrakeEFS000D2
TypeDS17H
Brake liningStandard thickness (new) 3.5 mm (0.138 in)
Repair limit thickness 1.5 mm (0.059 in)
Drum (disc)Standard inner diameter (new) 172 mm (6.77 in)
Wear limit of inner diameter 173 mm (6.81 in)
Lever stroke [operating force 196 N (20 kg,44 lb)] 6 to 7 notches
Brake warning lamp strokeWithin 1 notch

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
A
B
BRC

BRAKE CONTROL SYSTEM
ABS
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Brake System .................................. 4
Precautions for Brake Control .................................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
SYSTEM DESCRIPTION ............................................ 6
System Diagram ....................................................... 6
ABS Function ........................................................... 6
EBD Function ........................................................... 6
Fail-Safe Function .................................................... 6
ABS, EBD SYSTEM .............................................. 6
Hydraulic Circuit Diagram ........................................ 7
CAN COMMUNICATION ............................................ 8
System Description .................................................. 8
CAN Communication Unit ........................................ 8
TYPE 1/TYPE 2 .................................................... 8
TYPE 3 .................................................................. 9
TYPE 7/TYPE 8 .................................................. 10
TROUBLE DIAGNOSIS ............................................ 12
How to Proceed With Diagnosis ............................. 12
BASIC CONCEPT ............................................... 12
DIAGNOSIS FLOWCHART ................................ 13
ASKING COMPLAINTS ...................................... 14
EXAMPLE OF DIAGNOSIS SHEET ................... 14
Component Parts Location ..................................... 15
Schematic .............................................................. 16
Wiring Diagram — ABS — ..................................... 17
LHD MODEL ....................................................... 17
RHD MODEL ....................................................... 21
Control Unit Input/Output Signal Standard ............. 25
REFERENCE VALUE FROM CONSULT-II ......... 25
CONSULT- II Functions .......................................... 26
CONSULT-II MAIN FUNCTION ........................... 26
CONSULT-II BASIC OPERATION PROCEDURE
... 26SELF-DIAGNOSIS .............................................. 28
DATA MONITOR ................................................. 30
ACTIVE TEST ..................................................... 32
Correct and Quick Diagnosis .................................. 34
DIAGNOSIS PRECAUTIONS ............................. 34
Basic Inspection ..................................................... 35
BASIC INSPECTION 1 BRAKE FLUID AMOUNT,
LEAKS, AND BRAKE PADS INSPECTION ......... 35
BASIC INSPECTION 2 POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION .................................................................... 35
BASIC INSPECTION 3 ABS WARNING LAMP ... 35
Inspection 1: Wheel Sensor System ....................... 36
INSPECTION PROCEDURE .............................. 36
Inspection 2: ABS Actuator and Electric Unit (Con-
trol Unit) 1 ............................................................... 38
Inspection 3: ABS Actuator and Electric Unit (Con-
trol Unit) Power Supply and Ground Circuit ............ 38
Inspection 4: ABS Actuator Relay or ABS Motor
Relay Power System .............................................. 39
Inspection 5: ABS Actuator and Electric Unit (Con-
trol Unit) 2 ............................................................... 40
Inspection 6: G Sensor System .............................. 41
Inspection 7: CAN Communication System ............ 43
Symptom 1: ABS Works Frequently ....................... 43
Symptom 2: Unexpected Pedal Reaction ............... 44
Symptom 3: Longer Stopping Distance .................. 44
Symptom 4: ABS Does Not Work ........................... 45
Symptom 5: Pedal Vibration and ABS Operation
Noise ...................................................................... 45
WHEEL SENSORS ................................................... 46
Removal and Installation ........................................ 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
G SENSOR ................................................................ 47
Removal and Installation ........................................ 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47

BRC-2 SENSOR ROTOR ...................................................... 48
Removal and Installation ........................................ 48
REMOVAL ........................................................... 48
INSTALLATION .................................................... 48
ABS ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ........................................................................... 49
Removal and Installation ........................................ 49
ESP/TCS/ABS
PRECAUTIONS ......................................................... 50
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 50
Precautions for Brake System ................................ 50
Precautions for Brake Control ................................ 50
PREPARATION ......................................................... 51
Special Service Tools ............................................. 51
ON-VEHICLE SERVICE ............................................ 52
Adjustment of Steering Angle Sensor Neutral Posi-
tion .......................................................................... 52
SYSTEM DESCRIPTION .......................................... 53
System Diagram ..................................................... 53
ESP Function .......................................................... 53
TCS Function .......................................................... 53
ABS Function .......................................................... 54
EBD Function ......................................................... 54
Fail-Safe Function .................................................. 54
ESP/ TCS SYSTEM ............................................ 54
ABS, EBD SYSTEM ............................................ 54
Hydraulic Circuit Diagram ....................................... 55
CAN COMMUNICATION ........................................... 56
System Description ................................................. 56
CAN Communication Unit ....................................... 56
TYPE 4/TYPE 5 ................................................... 56
TYPE 6 ................................................................ 57
TYPE 9 ................................................................ 58
TROUBLE DIAGNOSIS ............................................ 60
How to Proceed With Diagnosis ............................. 60
BASIC CONCEPT ............................................... 60
DIAGNOSIS FLOWCHART ................................. 61
ASKING COMPLAINTS ....................................... 62
EXAMPLE OF DIAGNOSIS SHEET .................... 62
Component Parts and Harness Connector Location ... 63
Schematic ............................................................... 64
Wiring Diagram —ESP/TCS/ABS— ..................... 65
LHD MODEL ........................................................ 65
RHD MODEL ....................................................... 71
Control Unit Input/Output Signal Standard .............. 77
REFERENCE VALUE FROM CONSULT-II ......... 77
CONSULT-II Functions ........................................... 79
CONSULT-II MAIN FUNCTION ........................... 79
CONSULT-II BASIC OPERATION PROCEDURE
... 79
SELF-DIAGNOSIS .............................................. 81
DATA MONITOR .................................................. 83
ACTIVE TEST ..................................................... 86
For Fast and Accurate Diagnosis ........................... 88PRECAUTIONS FOR DIAGNOSIS ..................... 88
Basic Inspection ...................................................... 89
BASIC INSPECTION 1 BRAKE FLUID AMOUNT,
LEAKS, AND BRAKE PADS INSPECTION ......... 89
BASIC INSPECTION 2 POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION .................................................................... 89
BASIC INSPECTION 3 ABS WARNING LAMP,
ESP OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPEC-
TION .................................................................... 90
Inspection 1 Wheel Sensor System ........................ 91
INSPECTION PROCEDURE ............................... 91
Inspection 2 Engine System ................................... 93
Inspection 3 ESP/TCS/ABS Control Unit System ... 93
Inspection 4 Pressure Sensor and the Circuit
between Pressure Sensor and ESP/TCS/ABS Con-
trol Unit. ................................................................... 93
Inspection 5 Steering Angle Sensor and Circuit
between Steering Angle Sensor and ESP/TCS/ABS
Control Unit. ............................................................ 95
Inspection 6 Yaw Rate/Side G sensor and the Circuit
between Yaw Rate/Side G sensor and ESP/TCS/
ABS Control Unit. .................................................... 97
Inspection 7 Solenoid Valve, ESP Switch-over Sole-
noid Valve and Circuit ............................................. 98
Inspection 8 Actuator Motor, Motor Relay and Circuit
.101
Inspection 9 Actuator Relay and Circuit ................103
Inspection 10 Stop Lamp Switch and Circuit .........105
Inspection 11 ESP/TCS/ABS Control Unit Power
Supply Circuit ........................................................105
Inspection 12 When “EMERGENCY BRAKE” is
indicated in the Self-Diagnostic Results ................107
Inspection 13 When “ST ANG SEN SIGNAL” is Indi-
cated in the Self-Diagnostic Results .....................107
Inspection 14 Brake Fluid Level of Reservoir Tank,
Communication Circuit between ESP/TCS/ABS
Control Unit and Brake Fluid Level Warning Switch .108
Inspection 15 CAN Communication Circuit, ESP/
TCS/ABS Control Unit and Steering Angle Sensor .109
Component Check ................................................109
ESP OFF SWITCH ............................................109
ESP RELAY BOX ...............................................109
ESP ACTUATOR ...............................................110
Symptom 1: ABS Works Frequently .....................112
Symptom 2: Unexpected Pedal Reaction .............113
Symptom 3: Longer Stopping Distance .................113
Symptom 4: ABS Does Not Work .........................113
Symptom 5: Pedal Vibration and ABS Operation
Noise .....................................................................113
Symptom 6: ESP OFF Indicator Lamp Does Not Illu-
minate ...................................................................114
Symptom 7: SLIP Indicator Lamp Does Not Illumi-
nate .......................................................................114
Symptom 8: Vehicle Jerks During ESP/TCS/ABS
Control ..................................................................115

BRC-4
[ABS]
PRECAUTIONS

[ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS005X6
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

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 SystemEFS004GX

Recommended fluid is brake fluid “DOT 3” or “DOT 4”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off
and flush area with water immediately.

Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.

Using a flare nut torque wrench, securely tighten brake tube
flare nuts.

Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.

Before working, turn ignition switch OFF and disconnect har-
ness connectors of ABS actuator and electric unit (control unit)
or battery cable from negative terminal.

When installing brake piping, be sure to check torque.
Precautions for Brake ControlEFS004FV

During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.

Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is a normal status of operation check.

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 malfunction is indicated by ABS or another warning lamp, collect all necessary information from
customer (what symptoms are present under what conditions) and check for simple causes before start-
ing diagnostic servicing. Besides electrical system inspection, check booster operation, brake fluid level,
and oil leaks.

If tyre size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.

If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, ABS function
may have a malfunction.

If aftermarket parts (car stereo, CD player, etc.) Have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
SBR820BA