2005 NISSAN X-TRAIL ESP

BRC-106
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect ESP/TCS/ABS control unit connector. Securely connect them again.
2. Perform the self-diagnosis.
Is the same self-diagnosis item indicated?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3. ESP/TCS/ABS CONTROL UNIT POWER SUPPLY CIRCUIT INSPECTION 1
1. Disconnect ESP/TCS/ABS control unit connector.
2. Turn ignition switch ON (engine not running), and check the volt-
age between ESP/TCS/ABS control unit and body ground.
Is inspection result OK?
YES >> GO TO 4.
NO >> GO TO 5.
4. ESP/TCS/ABS CONTROL UNIT GROUND CIRCUIT INSPECTION 1
Check ESP/TCS/ABS control unit ground circuit.
Is inspection result OK?
YES >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NO >> Harness disconnection or improper installation of the ESP/TCS/ABS control unit.
SFIA2186E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Voltage value
1 (G/R) – Battery voltage (approx. 12V)
SFIA2187E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Continuity
28 (B)
–Yes
29 (B)

TROUBLE DIAGNOSIS
BRC-107
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

5. ESP/TCS/ABS CONTROL UNIT POWER SUPPLY CIRCUIT INSPECTION 2
1. Check the fuse 10A.
2. Check for continuity between the battery positive terminal and
ESP/TCS/ABS control unit.
Is inspection result OK?
YES >> Check battery for a loose terminal and low voltage or malfunction.
NO >>

Replace the fuse 10A.

Harness disconnection
Inspection 12 When “EMERGENCY BRAKE” is indicated in the Self-Diagnostic
Results
EFS005WH
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
Check the self-diagnostic results.
When any items other than “EMERGENCY BRAKE” is displayed in the self-diagnosis results, follow the
instructions below.
CAUTION:
“EMERGENCY BRAKE” is indicated when the control unit itself is detected internal malfunction. If this
display item was indicated, replace the control unit.
Is
“EMERGENCY BRAKE” is indicated in the self-diagnosis results?
YES >> Replace ESP/TCS/ABS control unit, and perform the self-diagnosis again.
NO >> INSPECTION END
Inspection 13 When “ST ANG SEN SIGNAL” is Indicated in the Self-Diagnostic
Results
EFS005WI
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
When any items other than
“ST ANGLE SEN SIGNAL” is displayed in the self-diagnosis results:
YES >> Check and repair the applicable items. Perform the self-diagnosis again.
NO >> Perform the steering angle sensor neutral position adjustment. GO TO 2.
SFIA2188E
ESP/TCS/ABS control unit
(harness connector E122)Battery terminal Continuity
1 (G/R) positive Yes
Self-diagnostic results
EMERGENCY BRAKE
Self-diagnostic results
ST ANGLE SEN SIGNAL

BRC-108
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSTIC RESULT CHECK 2
Turn ignition switch OFF, and ON to erase the self-diagnosis results. And perform the ESP/TCS/ABS control
unit self-diagnosis again.
Is the same self-diagnosis item indicated again?
YES >> After replacing spiral cable (with the steering angle sensor), perform the neutral position adjust-
ment. Then conduct the self-diagnosis again.
NO >> INSPECTION END
Inspection 14 Brake Fluid Level of Reservoir Tank, Communication Circuit
between ESP/TCS/ABS Control Unit and Brake Fluid Level Warning Switch
EFS005WJ
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Does the brake warning lamp turn on?
YES >> Check the pad for wear. Check the brake fluid for leakage.
NO >> GO TO 2.
2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect connectors for the brake fluid level switch and ESP/TCS/ABS control unit.
2. Securely connect connectors. Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is the same self-diagnosis item indicated again?
YES >> GO TO 3.
NO >> Poor connection of connector. Repair or replace the poorly connected connector.
3. CIRCUIT CHECK BETWEEN BRAKE FLUID LEVEL WARNING SWITCH AND ESP/TCS/ABS CON-
TROL UNIT
1. Disconnect connectors for brake fluid level switch and ESP/
TCS/ABS control unit.
2. Check for the continuity between the brake fluid level switch and the ESP/TCS/ABS control unit.
Is inspection result OK?
YES >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NO >> Repair or replace the disconnected harness.
Self-diagnostic results
BR FLUID LEVER LOW
SFIA2196E
ESP/TCS/ABS control unit
(harness connector E122)Brake fluid level switch
(harness connector E19)Continuity
40 (Y/B) 1 (Y/B) Yes

TROUBLE DIAGNOSIS
BRC-109
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Inspection 15 CAN Communication Circuit, ESP/TCS/ABS Control Unit and
Steering Angle Sensor
EFS005WK
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ESP/TCS/ABS control unit connector, and check the terminal for
deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is
“CAN COMM CIRCUIT” or “ST ANG SEN COM CIR” displayed in the self-diagnosis display items?
YES >> Print out the self-diagnostic results, and refer to BRC-56, "CAN COMMUNICATION" .
NO >> Connector terminal connection is loose, damaged, open, or shorted.
Component CheckEFS005WL
ESP OFF SWITCH

Disconnect the ESP OFF switch connector. Check for continuity
between the terminal No. 1 and No. 2.
ESP RELAY BOX
Disconnect the relay box connectors. Check for continuity, resis-
tance value, and insulation between any pair of terminals in the relay
box. 1 - 2 : Pressing the switch will make a continu-
ity, and releasing it will stop the continuity.
SFIA1822E
SFIA1823E

BRC-110
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Continuity and resistance
ESP ACTUATOR
Take each connector off from the actuator. Then check electric circulation and resistance in between termi-
nals.
CAUTION:
Confirm that the earth of actuator motor is completely removed.
SFIA0907E
SFIA2190E

TROUBLE DIAGNOSIS
BRC-111
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Continuity and resistance
Check the resistance
SFIA0909E
Standard value (Ω)
Solenoid valves
Outlet ~ Outlet : 6.0 - 10.0
Outlet ~ Inlet : 9.0 - 16.0
Inlet ~ Inlet : 12.0 - 22.0
ESP switch-over solenoid valve
Primary-side 1 - Secondary-side 1 : 12.0 - 22.0
Primary-side 2 - Secondary-side 2 : 6.0 - 10.0
Primary-side 1 - Primary-side 2, Secondary-side 2 : 9.0 - 16.0
Secondary-side 1 - Primary-side 2, Secondary-side 2 : 9.0 - 16.0

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]
C
D
E
G
H
I
J
K
L
MA
B
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.