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![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-107
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Inspection 15 CAN Communication Circuit, ESP/TCS/ABS Control Unit and
Steering Angle Sensor
EFS001C6
Inspection procedure
1. CHECK NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-107
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Inspection 15 CAN Communication Circuit, ESP/TCS/ABS Control Unit and
Steering Angle Sensor
EFS001C6
Inspection procedure
1. CHECK](/manual-img/5/57404/w960_57404-2920.png)
TROUBLE DIAGNOSIS
BRC-107
[ESP/TCS/ABS]
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Inspection 15 CAN Communication Circuit, ESP/TCS/ABS Control Unit and
Steering Angle Sensor
EFS001C6
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 LAN-4, "CAN Communication Unit" .
NO >> Connector terminal connection is loose, damaged, open, or shorted.
Component CheckEFS001AR
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
Page 2922 of 4179
BRC-108
[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
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TROUBLE DIAGNOSIS
BRC-109
[ESP/TCS/ABS]
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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
Page 2924 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual BRC-110
[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 ea NISSAN X-TRAIL 2003 Service Repair Manual BRC-110
[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 ea](/manual-img/5/57404/w960_57404-2923.png)
BRC-110
[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 Frequently.EFS001AS
Inspection procedure
1. INSPECTION START
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips
Sensor rotor inspection (e.g. Number of teeth, damaged teeth)
Sensor connector engagement inspection
Is inspection result OK?
YES >> GO TO 2.
NO >> Refer to wheel sensor and rotor lines.
2. LOOSENESS INSPECTION
Check front axle for looseness.
Is inspection result OK?
YES >>BRC-110, "Symptom 2: Unexpected Pedal Action"
NO >> Axle inspection and repair
Symptom 2: Unexpected Pedal ActionEFS001AT
Inspection procedure
1. BRAKE PEDAL STROKE INSPECTION
Check the brake pedal stroke.
Is the stroke excessively long?
YES >> Check the bleeding and brake system.
NO >> GO TO 2.
SFIA1824E
Page 2925 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-111
[ESP/TCS/ABS]
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2. PEDAL FORCE INSPECTION
Check that brake is effective with the pedal depressed.
Is the pedal force heavy, but effective?
YES >> N NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
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2. PEDAL FORCE INSPECTION
Check that brake is effective with the pedal depressed.
Is the pedal force heavy, but effective?
YES >> N](/manual-img/5/57404/w960_57404-2924.png)
TROUBLE DIAGNOSIS
BRC-111
[ESP/TCS/ABS]
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2. PEDAL FORCE INSPECTION
Check that brake is effective with the pedal depressed.
Is the pedal force heavy, but effective?
YES >> Normal
NO >> GO TO 3.
3. CONNECTOR AND PERFORMANCE INSPECTION
Disconnect the actuator relay unit connector to deactivate the ABS function. Check that brake is effective.
Is brake effective?
YES >> GO TO 4.
NO >> Brake line inspection
4. ABS WARNING LAMP INDICATOR INSPECTION
Check that ABS warning lamp illuminates.
Does ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 5.
5. WHEEL SENSOR INSPECTION
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips
Sensor rotor inspection (e.g. Number of teeth, damaged teeth)
Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 3: Longer Stopping DistanceEFS001AU
Inspection procedure
1. INSPECTION START
Check that the stopping distance when braking becomes longer only on a snowy or gravel road.
Does the stopping distance when braking become longer only on a snowy or gravel road?
YES >> It may be longer than that of vehicle without ABS.
NO >> GO TO 2.
2. PERFORMANCE CHECK
Disconnect the actuator relay box to deactivate the ABS function.
Is the stopping distance still longer?
YES >>Brake line air bleeding
Brake line inspection
NO >> GO TO 3.
3. ABS WARNING LAMP INDICATOR INSPECTION
Check that ABS warning lamp illuminates.
Does ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 4.
Page 2926 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual BRC-112
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
4. WHEEL SENSOR INSPECTION
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips
Sensor rotor inspection (e.g. NISSAN X-TRAIL 2003 Service Repair Manual BRC-112
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
4. WHEEL SENSOR INSPECTION
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips
Sensor rotor inspection (e.g.](/manual-img/5/57404/w960_57404-2925.png)
BRC-112
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
4. WHEEL SENSOR INSPECTION
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips
Sensor rotor inspection (e.g. Number of teeth, damaged teeth)
Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 4: ABS Does Not Work.EFS001AV
Inspection procedure
1. ABS WARNING LAMP INDICATOR INSPECTION
Check that the ABS warning lamp illuminates.
Does the ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 2.
2. WHEEL SENSOR INSPECTION
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips
Sensor rotor inspection (e.g. Number of teeth, damaged teeth)
Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 5: Pedal Vibration and NoiseEFS001AW
Inspection procedure
1. SYMPTOM CHECK
Check the brake system for pedal vibration or noise when engine starts.
Is inspection result OK?
YES >> Perform the self-diagnosis.
NO >> GO TO 2.
2. SYMPTOM CHECK 2
Check the brake system for pedal vibration or noise when pedal is depressed lightly (just put a foot on).
CAUTION:
Under the following driving conditions, the wheel speed will fluctuates, resulting in ABS activation.
When shifting gears
High speed cornering
When a gust of wind
Is inspection result OK?
YES >> GO TO 3.
NO >> Normal
Page 2927 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-113
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3. SYMPTOM CHECK 3
Does the symptom appear during normal braking operation?
CAUTION:
ABS may work in following driving conditions e NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
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3. SYMPTOM CHECK 3
Does the symptom appear during normal braking operation?
CAUTION:
ABS may work in following driving conditions e](/manual-img/5/57404/w960_57404-2926.png)
TROUBLE DIAGNOSIS
BRC-113
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3. SYMPTOM CHECK 3
Does the symptom appear during normal braking operation?
CAUTION:
ABS may work in following driving conditions even if there is no sudden brake.
When road friction is low.
High speed cornering
When a gust of wind
Is inspection result OK?
YES >> GO TO 4.
NO >> Normal
4. SYMPTOM CHECK 4
Check that the symptom is reproduce when the engine speed is increased with the vehicle stopped.
Is inspection result OK?
YES >> GO TO 5.
NO >>
Normal.
CAUTION:
This symptom may appear with vehicle stopped.
5. SYMPTOM CHECK 5
Check that the symptom is reproduced when any switch of electrical equipment is operated.
Is inspection result OK?
YES >> Check that there are no radio, antenna, and antenna lead-in wires (including wiring) near control
unit.
NO >> GO TO 6.
6. ABS WARNING LAMP INSPECTION
Check that the ABS warning lamp turns on.
Is inspection result OK?
YES >> Perform the self-diagnosis.
NO >> GO TO 7.
7. WHEEL SENSOR INSPECTION
Check the wheel sensor system.
Sensor mounting inspection
Sensor pick-up inspection for iron chips (e.g. Number of teeth, damaged teeth)
Sensor connector engagement inspection
Wheel sensor path harness and connector inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 6: ESP OFF Indicator Lamp Does Not IlluminateEFS001AX
Inspection procedure
1. ESP OFF INDICATOR LAMP INSPECTION
Disconnect ESP/TCS/ABS control unit connector.
Does ABS warning lamp and ESP OFF indicator lamp illuminate?
YES >> ESP/TCS/ABS control unit malfunction. Repair or replace the control unit.
NO >> Combination meter system malfunction. Check the combination meter.
Page 2928 of 4179
![NISSAN X-TRAIL 2003 Service Repair Manual BRC-114
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Symptom 7: SLIP Indicator Lamp Does Not IlluminateEFS001AY
Inspection procedure
1. SLIP INDICATOR LAMP CONNECTOR INSPECTION
Check connectors for ESP/TCS/ABS c NISSAN X-TRAIL 2003 Service Repair Manual BRC-114
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Symptom 7: SLIP Indicator Lamp Does Not IlluminateEFS001AY
Inspection procedure
1. SLIP INDICATOR LAMP CONNECTOR INSPECTION
Check connectors for ESP/TCS/ABS c](/manual-img/5/57404/w960_57404-2927.png)
BRC-114
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Symptom 7: SLIP Indicator Lamp Does Not IlluminateEFS001AY
Inspection procedure
1. SLIP INDICATOR LAMP CONNECTOR INSPECTION
Check connectors for ESP/TCS/ABS control unit and meter vehicle-side harness.
Is inspection result OK?
YES >> GO TO 2.
NO >> Repair or replace the disconnected connector.
2. SLIP INDICATOR LAMP POWER CIRCUIT INSPECTION
Disconnect the meter connector. Check that the voltage between the
vehicle-side harness terminal and body ground is battery voltage
(Approx. 12V).
Is inspection result OK?
YES >> GO TO Refer to BRC-107, "Inspection 15 CAN Commu-
nication Circuit, ESP/TCS/ABS Control Unit and Steer-
ing Angle Sensor" .
NO >>
Fuse inspection
Inspection for harness and connectors between fuse
block and meter
Check the power supply circuit (battery and ignition
switch circuit).
Symptom 8: Vehicle Jerks During ESP/TCS/ABS ControlEFS004MU
1. SYMPTOM CHECK 1
Check if the vehicle jerks during ESP/TCS/ABS control.
OK or NG
OK >> Normal
NG >> GO TO 2.
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnostic of ESP/TCS/ABS control unit.
Are self-diagnostic results indicated?
YES >> Check the corresponding items, make repairs, and perform ABS actuator and electric unit (control
unit) self-diagnosis.
NO >> GO TO 3.
3. 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.
2. Securely connect connectors. Perform ESP/TCS/ABS control unit self-diagnosis.
Are self-diagnostic results indicated?
YES >> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.
NO >> GO TO 4.
SFIA2207E