2005 NISSAN X-TRAIL brake light

BRC-54
[ESP/TCS/ABS]
SYSTEM DESCRIPTION

3. During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
CAUTION:

During TCS operation, body and brake pedal lightly vibrate and the mechanical noise may be
heard. This is a normal condition.

Depending on road circumstances, a driver may have a sluggish feel. This is not malfunction,
because the optimum traction has the highest priority by TCS operation.

When the vehicle is passing through a road where the surface friction coefficient varies, down-
shifting or depressing the accelerator pedal fully may activate TCS temporarily.
ABS FunctionEFS0019U
1. In cases of braking suddenly or braking on slippery road (ice road), ABS functions prevent wheels from
lock, improve the stability in sudden braking, and make efficient avoidance of obstacles with steering
manipulation by detecting wheel speed and controlling brake fluid pressure.
2. EBD is integrated in ESP/TCS/ABS system.
CAUTION:

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

When starting engine, or just after starting vehicle, brake pedal may vibrate or the motor operating
noise may be heard from engine compartment. This is a normal status of the operation check.

The stopping distance may be longer than that of vehicles without ABS when vehicle drives on
rough, gravel, or snowy (fresh deep snow) road.
EBD FunctionEFS004HO

Electronic Brake Distributor is a function that detects subtle slippages between front and rear wheels dur-
ing braking, and it improves handling stability by electronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.

In case of electrical system break down, the fail-safe function is activated, EBD and ABS becomes inoper-
ative, and ABS warning lamp and brake warning lamp are turned on.

Electrical System Diagnosis by CONSULT-II is available.
Fail-Safe FunctionEFS004HP
ESP/ TCS SYSTEM
In case of throttle control system trouble, ESP OFF indicator lamp and SLIP indicator lamp are turned on, and
the condition of vehicle is the same as the condition of vehicles without ESP/TCS equipment. In case of trou-
ble to the throttle control system, the ABS control continues to operate normally without ESP/TCS control.
CAUTION:
If the fail-safe function is activated, then perform the self- diagnosis for ESP/TCS/ABS control system.
ABS, EBD SYSTEM
In case of electrical malfunctions with the ABS, ABS warning lamp, ESP OFF indicator lamp and SLIP indica-
tor lamp will turn on. In case of electrical malfunctions with the EBD, brake warning lamp, ABS warning lamp,
ESP OFF indicator lamp and SLIP indicator lamp will turn on. Simultaneously, the ESP/ TCS/ABS become one
of the following conditions of the fail-safe function.
1. For ABS trouble, only the EBD is activated and the condition of vehicle is the same condition of vehicles
without ESP/TCS/ABS equipment.
2. For EBD trouble, the EBD and ABS become inoperative, and the condition of vehicle is the same as the
condition of vehicles without ESP/TCS/ABS, EBD equipment.
NOTE:
In condition 1 described above, an ABS self-diagnosis sound may be heard. That is a normal condition
because a self-diagnosis for “Ignition switch ON” and “The first starting” are being performed.

BRC-88
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

For Fast and Accurate DiagnosisEFS005W4
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read precautions. Refer to BRC-60, "How to Proceed With Diagno-
sis" .

If ESP/TCS/ABS control unit steering angle sensor, steering system parts or suspension system parts
have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of steering angle
sensor before driving. Refer to BRC-52, "
Adjustment of Steering Angle Sensor Neutral Position" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-81, "SELF-DIAGNOSIS" .

When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

To use CONSULT-II to perform self-diagnosis of ESP/TCS/ABS control unit active tests, or work support,
first stop work, then connect CONSULT-II and select “ABS”.

While self-diagnostic results of CONSULT-II shows malfunction, if CONSULT-II active test is performed,
an engine system malfunction may be indicated. In this case, start engine to resume the normal screen.

ESP/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:
ON and OFF Timing for ABS Warning Lamp, ESP OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF Symptom Symptom description Result
Motor operation noiseThis is noise of motor inside ESP/TCS/ABS control unit. Slight noise
may occur during ESP, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5 MPH), motor and
valves operating noise may be heard. It happens only once after ignition
switch is ON. This is a normal status of the system operation check.
System operation check
noiseWhen engine starts, slight “click” noise may be heard from engine room.
This is normal and is part of system operation check.Normal
ESP/TCS operation
(SLIP indicator lamp blink-
ing)TCS may activate momentarily if wheel speed changes when driving
over location where friction coefficient varies, when downshifting, or
when fully depressing accelerator pedal.Normal
Cancel the ESP/TCS
function for the
inspection on a chas-
sis dynamometer. When checking speed meter etc. with a 2-wheel-drive chassis dyna-
mometer, vehicle speed is not increased by pressing down on the accel-
erator.
ABS operation (Longer stop-
ping distance)On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low.Normal
Insufficient feeling of accel-
erationDepending on road conditions, driver may feel that feeling of accelera-
tion is insufficient. This is because traction control, which controls
engine and brakes to achieve optimal traction, has the highest priority
(for safety). As a result, there may be times when acceleration is slightly
less than usual for the same accelerator pedal operation.Normal
ConditionABS warning
lampESP OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp [Note 1]Remarks
Ignition SW OFF. – – – – –
Approx. 2 seconds after igni-
tion switch is turned ON.×××× [Note 2] –
Approx. 2 seconds later after
ignition switch ON.–––× [Note 2]Go out 2 seconds after
ignition switch is turned
ON.

BRC-112
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Actuator operation check
1. Connect 9 and 10 terminals of actuator to 40 and 41 terminals of
relay box.
2. Measure the motor voltage (No.4 terminal to body earth) with
oscilloscope. Then check the motor reverse voltage occasioned
time.
The motor reverse voltage occasioned time is more than 0.1
sec.
CAUTION:

Perform checking of motor relay unit. Then confirm that
relay functions.

Driving actuator motor is with in 4 sec. to prevent heating
up.

Standard condition of the motor reverse voltage occa-
sioned time is: Battery voltage is 12V. Temperature 20°.
when the battery voltage or temperature is lower than the
standard, the motor reverse voltage occasioned time
becomes slightly shorter.
Symptom 1: ABS Works FrequentlyEFS005WM
1. CHECK START
Check longitudinal brake force distribution using a brake tester.
OK or NG
OK >> GO TO 2.
NG >> Check brake system.
2. CHECK FRONT AND REAR AXLE
Check to make sure that there is no excessive play in the front and rear axles. Refer to Front: FAX-7, "
On-
Vehicle Inspection" , Rear: RAX-6, "WHEEL BEARING INSPECTION" (2WD), RAX-10, "REAR WHEEL
BEARING" (4WD).
OK or NG
OK >> GO TO 3.
NG >> Repair.
3. CHECK WHEEL SENSOR AND SENSOR ROTOR
Check wheel sensor and sensor rotor for the following.

Sensor installation for damage

Sensor rotor installation for damage

Sensor connector engagement

Sensor harness
OK or NG
OK >> GO TO 4.
NG >>

Replace wheel sensor or sensor rotor.

Repair harness.
SFIA1824E

TROUBLE DIAGNOSIS
BRC-113
[ESP/TCS/ABS]
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BRC

4. CHECK ABS WARNING LAMP DISPLAY
Make sure that the warning lamp turns off approximately 2 second after the key switch is turned on or when
driving.
OK or NG
OK >> Normal
NG >> Perform self-diagnosis. Refer to BRC-81, "
SELF-DIAGNOSIS" .
Symptom 2: Unexpected Pedal ReactionEFS005WN
1. CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Refer to BR-6, "
On-Vehicle Inspection and Adjustment" .
Is the stroke too large?
YES >>
Bleed air from the brake piping. Refer to BR-9, "Bleeding Brake System" .

Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake sys-
tem fluid leakage, etc. Repair if necessary. Refer to Brake pedal: BR-6, "
BRAKE PEDAL" ,
brake booster and master cylinder: BR-23, "
BRAKE BOOSTER" .
NO >> GO TO 2.
2. PERFORMANCE CHECK
Disconnect ESP/TCS/ABS control unit connector to deactivate ABS. Check if braking force is normal in this
condition. Connect connector after inspection.
OK or NG
OK >> GO TO 3. Wheel Sensor Inspection in Refer to BRC-91, "Inspection 1 Wheel Sensor System" .
NG >> Check brake system.
Symptom 3: Longer Stopping DistanceEFS005WO
CAUTION:
The stopping distance on slippery road surfaces might be longer with the ABS operating than when
the ABS is not operating.
1. PERFORMANCE CHECK
Turn ignition switch OFF. Disconnect ESP/TCS/ABS control unit connector to deactivate ABS. In this condi-
tion, check stopping distance. After inspection, connect connector.
OK or NG
OK >> GO TO BRC-112, "Symptom 1: ABS Works Frequently" .
NG >>

Bleed air from the brake piping. Refer to BR-9, "Bleeding Brake System" .

Check brake system.
Symptom 4: ABS Does Not WorkEFS005WP
CAUTION:
ABS does not operate when speed is 10 km/h or lower.
1. CHECK ABS WARNING LAMP DISPLAY
Make sure that the warning lamp turns off approximately 2 second after the key switch is turned on or when
driving.
OK or NG
OK >> GO TO 3. Check wheel sensor and sensor rotor in Refer to BRC-91, "Inspection 1 Wheel Sensor
System" .
NG >> Perform self-diagnosis. Refer to BRC-81, "
SELF-DIAGNOSIS" .
Symptom 5: Pedal Vibration and ABS Operation NoiseEFS005WQ
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it). However, this is normal.

PS-8
STEERING WHEEL

STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceEGS001BY
CHECKING CONDITION OF INSTALLATION

Check installation conditions of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check steering gear assembly mounting bolts and nut for looseness. Refer to PS-16, "COMPONENT" .
CHECKING STEERING WHEEL PLAY

Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on
the outer circumference.

When the measurement value is outside the standard value, check backlash for each joint of steering col-
umn and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL

Make sure that steering gear assembly, steering column and steering wheel are installed in the correct
position.

Perform neutral position inspection after wheel alignment. Refer to FSU-6, "Wheel Alignment" .

Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.

Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80°C (122 to 176°F).]
4. Check steering wheel turning force when steering wheel has
been turned 360° from neutral position.
NOTE:

Multiply the distance (L) from the hook of spring scale to the
center of steering wheel by the measurement value with a
spring scale.

Perform the following manner when the guideline value is
hard to be measured.
a. Park vehicle on a level and dry surface, set parking brake.
b. Remove driver air bag module. Refer to SRS-30, "
DRIVER AIR BAG MODULE" .
c. Start engine at idle, then check steering wheel turning force with
pre-load gauge [SST].
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-27,
"OIL PUMP PULLEY HYDRAULIC PRESSURE INSPECTION" .
a. Disconnect lower shaft and steering knuckle from steering gear
assembly. Refer to FAX-7, "
Removal and Installation" , PS-11,
"COMPONENT" . Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 - 35 mm (0 - 1.38 in)
Steering wheel
turning force: 36 N (3.7 kg, 8.2 lb) or less
Steering wheel
turning force: 706 N·cm (72 kg-cm, 62 in-lb)
SST491B
SGIA1050J

HARNESS
PG-65
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Wiring Diagram Codes (Cell Codes) EKS0032J
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
1STSIG AT A/T 1st Signal
2NDSIG AT A/T 2nd Signal
3RDSIG AT A/T 3rd Signal
4THSIG AT A/T 4th Signal
4WD TF 4WD Control system
A/C ATC Air Conditioner
ABS BRC Anti-Lock Brake System
APP1PW EC Accelerator Pedal Position Sensor 1 Power Supply
APP2PW EC Accelerator Pedal Position Sensor 2 Power Supply
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC Automatic Speed Control Device (ASCD) Brake Switch
ASC/SW EC Automatic Speed Control Device (ASCD) Steering Switch
ASCBOF EC Automatic Speed Control Device (ASCD) Brake Switch
ASCIND EC Automatic Speed Control Device (ASCD) Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-Up Lamp
BOOST EC Turbocharger Boost Sensor
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
CKPS EC Crankshaft Position Sensor
CLOCK DI Clock
CMPS EC Camshaft Position Sensor
COOL/F EC Cooling Fan Control
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECM/PW EC ECM Power Supply for Back-Up
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGRVLV EC EGR Volume Control Valve
EGVC/V EC EGR Volume Control Valve
ENGSS AT Engine Speed Signal

IDX-3
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IDX
ALPHABETICAL INDEX
EC-1641
Basic inspection .. EC-79, EC-578, EC-1012, EC-1382
Battery ................................................................. SC-4
Baulk ring (M/T) .................................... MT-23, MT-41
Blower motor .... ATC-82, ATC-87, ATC-127, MTC-15,
MTC-18
, MTC-24
Blower resistor ................................................ MTC-25
Blower unit ....................... ATC-125, MTC-22, MTC-24
BOOST - Wiring diagram ............... EC-1153, EC-1508
Boring/horning cylinder block(QR20DE-QR25DE) .......
EM-111
Brake booster .................................................... BR-23
Brake fluid change ............................................... BR-8
Brake fluid level ................................................. MA-44
Brake fluid level and line check ........................... BR-8
Brake hydraulic line ........................................... BR-10
Brake inspection ................................................ MA-44
Brake lines and cables inspection ..................... MA-44
Brake master cylinder ........................................ BR-14
Brake pedal ......................................................... BR-6
Brake switch ..... EC-405, EC-809, EC-1313, EC-1664
BRK/SW - Wiring diagram EC-406, EC-811, EC-1314,
EC-1665
Bulb specifications ............................................ LT-152
Bumper, front ....................................................... EI-14
Bumper, rear ........................................................ EI-17
C
Camshaft inspection(QR20DE-QR25DE) .......... EM-58
Camshaft inspection(YD22DDTi) .................... EM-181
Camshaft position sensor (CMPS) EC-1169, EC-1175,
EC-1525
, EC-1531
Camshaft position sensor (PHASE) .. EC-257, EC-701
Camshaft(QR20DE-QR25DE) ........................... EM-56
Camshaft(YD22DDTi) ...................................... EM-180
CAN - Wiring diagram ....... EC-134, EC-634, EC-1057,
EC-1426
, LAN-12, LAN-28, LAN-44, LAN-69, LAN-87,
LAN-105
, LAN-131, LAN-144, LAN-157
CAN (Controller Area Network) ........ LAN-11, LAN-27,
LAN-43
, LAN-68, LAN-86, LAN-104, LAN-130,
LAN-143
, LAN-156
CAN communication EC-39, EC-133, EC-552, EC-633,
EC-989
, EC-1056, EC-1365, EC-1425, AT-32, AT-97,
AT-329
, TF-45, LAN-11, LAN-27, LAN-43, LAN-68,
LAN-86
, LAN-104, LAN-130, LAN-143, LAN-156
Canister-See EVAP canister ............. EC-525, EC-965
CHARGE - Wiring diagram .................... SC-14, SC-15
Charging system ................................................ SC-13
Chassis and body maintenance ........................ MA-39
CHIME - Wiring diagram ................ DI-54, DI-57, DI-58
CIGAR - Wiring diagram .................................. WW-29
Cigarette lighter ............................................... WW-29
Circuit breaker ................................................... PG-12
CKPS - Wiring diagram EC-1059, EC-1158, EC-1164,
EC-1428
, EC-1513, EC-1520
Clearance lamp ................................................ LT-116
Clock ................................................................... DI-63
CLOCK - Wiring diagram .................................... DI-63
Closed loop control .............................. EC-36, EC-549
Clutch cover ....................................................... CL-16
Clutch disc ......................................................... CL-16
Clutch master cylinder ......................................... CL-9
Clutch operating cylinder ................................... CL-12
Clutch pedal ......................................................... CL-5
Clutch release bearing ....................................... CL-14
Clutch release mechanism ................................ CL-14
Clutch withdrawal lever ...................................... CL-14
CMPS - Wiring diagram EC-1059, EC-1170, EC-1176,
EC-1428
, EC-1526, EC-1532
Coil spring (rear) ............................................... RSU-8
Collision diagnosis .......................................... SRS-48
Combination meter ............................................... DI-4
Combination switch ............................................. LT-96
Component Location (auto A/C) ......... ATC-35, MTC-4
Compression pressure(QR20DE-QR25DE) ..... EM-70
Compression pressure(YD22DDTi) ................ EM-209
Compressor clutch removal and installation .. ATC-146
Compressor special service tool ...................... ATC-14
Condenser ..................................................... ATC-155
Connecting rod bearing clearance(QR20DE-QR25DE)
EM-109
Connecting rod bearing clearance(YD22DDTi) EM-252
Connecting rod bushing clearance(YD22DDTi) EM-246
Connecting rod(QR20DE-QR25DE) ............... EM-109
Connecting rod(YD22DDTi) .............. EM-242, EM-248
CONSULT for engine ......................... EC-103, EC-604
CONSULT-II for engine ................. EC-1034, EC-1405
Control lever (M/T) ............................................. MT-16
Control unit ..................................... ATC-120, MTC-21
Control units (terminal arrangement) ................. PG-76
Controller Area Network (CAN) ........ LAN-11, LAN-27,
LAN-43
, LAN-68, LAN-86, LAN-104, LAN-130,
LAN-143
, LAN-156
Converter housing installation ......................... AT-523
COOL/F - Wiring diagram EC-356, EC-759, EC-1127,
EC-1483
Coolant replacement(QR20DE-QR25DE) ........ MA-20
Coolant replacement(YD22DDTi) ..................... MA-30
Cooling circuit (engine)(QR20DE-QR25DE) ....... CO-7
Cooling circuit (engine)(YD22DDTi) ................. CO-30
Cooling fan ............................................ CO-19, CO-37
Cooling fan relay EC-367, EC-770, EC-1137, EC-1492
Coupling sleeve (M/T) ........................... MT-23, MT-41
Cowl top .............................................................. EI-20
Cowl top cover .................................................... EI-20
Crankcase ventilation system .......... EC-989, EC-1365
Crankcase ventilation system - See Positive crankcase
ventilation ........................................... EC-527
, EC-967
Crankshaft position sensor (POS) ..... EC-250, EC-693
Crankshaft position sensor (TDC) EC-1157, EC-1163,
EC-1512
, EC-1518
Crankshaft(QR20DE-QR25DE) ........................ EM-90
Cylinder block boring(QR20DE-QR25DE) ...... EM-112
Cylinder block boring(YD22DDTi) ................... EM-250
Cylinder block(QR20DE-QR25DE) ................... EM-89
Cylinder block(YD22DDTi) .............................. EM-230
Cylinder head bolt tightening(QR20DE-QR25DE) ........