2003 NISSAN TEANA brc

BRC-24
[ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Wheel Sensor SystemBFS000D5
Check each part according to CONSULT-II self-diagnostic results, and then identify the parts to be replaced.
CAUTION:
Do not check between wheel sensor terminals.
INSPECTION PROCEDURE
1. CHECK TIRE
Check air pressure, wear and size.
Are air pressure, wear and size within the standards?
YES >> GO TO 2.
NO >> Adjust air pressure, or replace tire.
2. CHECK SENSOR AND SENSOR ROTOR

Check sensor and sensor rotor.

Check sensor rotor rubber bar for damage.

Check sensor for disconnection or looseness.
OK or NG
OK >> GO TO 3.
NG >> Repair sensor mount or replace sensor rotor.
3. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above display on the screen?
YES >> GO TO 4.
NO >> INSPECTION END
4. CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit (control unit) connectors and malfunctioning wheel sensor con-
nector. Check terminal for deformation, open circuit, pooh contact, etc., and repair or replace if any mal-
function is found.
2. Reconnect connectors, drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute, and then
perform self-diagnosis.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 5.
Self-diagnostic results
FR RH SENSOR-1, -2
FR LH SENSOR-1, -2
RR RH SENSOR-1, -2
RR LH SENSOR-1, -2

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-25
[ABS]
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5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
sensor connector E10 (FR-RH), E38 (FR-LH), C2 (RR-RH), C3
(RR-LH) and ABS actuator and electric unit (control unit) con-
nector E240.
2. Check continuity between terminals. (Also check continuity
when the steering wheel is turned right and left and when the
sensor harness inside the wheel house is moved.)
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness and connector that have malfunction.
6. CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1. Disconnect malfunctioning wheel sensor connector.
2. Turn ignition switch ON and check voltage between wheel sen-
sor harness connector power supply terminal and ground.
OK or NG
OK >> Replace wheel sensor.
NG >> Replace ABS actuator and electric unit (control unit).
SFIA3323E
Power supply circuit Signal circuit Ground circuit
WheelABS actuator
and electric unit
(control unit)Wheel sensorABS actuator
and electric unit
(control unit)Wheel sensorABS actuator
and electric unit
(control unit)
(signal)ABS actuator
and electric unit
(control unit)
(ground)
Front RH 21 1 12 2 21, 12
3, 4 Front LH 23 1 27 2 23, 27
Rear RH 11 1 15 2 11, 15
Rear LH 26 1 30 2 26, 30
Power supply circuit : Continuity should exist.
Signal circuit : Continuity should exist.
Ground circuit : Continuity should not exist.
Wheel Wheel sensor Ground Voltage
Front RH
1—8 V or more Front LH
Rear RH
Rear LH
SFIA3339E

BRC-26
[ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

ABS Actuator and Electric Unit (Control Unit) 1BFS000D6
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnostic results.
Is the above display on the screen?
YES >> Replace ABS actuator and electric unit (control unit). Perform self-diagnosis again.
NO >> INSPECTION END
ABS Actuator and Electric Unit (Control Unit) Power Supply and Ground CircuitBFS000D7
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnostic results.
Is the above display on the screen?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ABS actuator and electric unit (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. Securely reconnect connectors and perform self-diagnosis again.
OK or NG
OK >> Connector terminal contact was loose, damaged, open or shorted.
NG >> GO TO 3.
Self-diagnostic results
CONTROLLER FAILURE
Self-diagnostic results
BATTERY VOLTAGE [ABNORMAL]

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-27
[ABS]
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3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND
1. Turn ignition switch OFF and disconnect ABS actuator and elec-
tric unit (control unit) connector.
2. Check voltage between ABS actuator and electric unit (control
unit) harness connector E240 terminal 16 and ground with igni-
tion switch turned ON and OFF.
3. Check continuity between ABS actuator and electric unit (control
unit) harness connector E240 terminals 3, 4 and ground.
OK or NG
OK >> Check battery for terminal looseness, low voltage, etc. If
any malfunction is found, repair malfunctioning parts.
NG >> Corresponding harness circuit malfunctions. Repair cir-
cuit.
SFIA3324E
ABS actuator and electric unit (control unit) Ground Measurement condition Voltage
16 —Ignition switch ON Battery voltage (Approx. 12 V)
Ignition switch OFF Approx. 0 V
ABS actuator and electric unit (contorl unit) Ground Continuity
3, 4 — Yes
SFIA3325E

BRC-28
[ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

ABS Actuator Relay or ABS Motor Relay Power SystemBFS000D8
INSPECTION PROCEDURE
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND
CIRCUIT
Check the self-diagnostic results.
Is the above display on the screen?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connectors, and
check the terminal for deformation, disconnection, looseness, and so on. If there is a malfunction, repair
or replace the terminal.
2. Securely reconnect connectors and perform self-diagnosis again.
OK or NG
OK >> Connector terminal contact was loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK ABS ACTUATOR RELAY OR ABS MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF and disconnect ABS actuator and elec-
tric unit (control unit) connector.
2. For the ABS actuator relay, measure voltage between the har-
ness connector E240 terminal 2 and ground. For the ABS motor
relay, measure voltage between the harness connector E240
terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Circuit malfunction between the battery and ABS actuator and electric unit (control unit). Repair
circuit.
4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector E240 terminals 3, 4 and ground.
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Open or short in harness. Repair or replace harness.
Self-diagnostic results
IN ABS SOL
OUT ABS SOL
ACTUATOR RLY
ABS actuator and electric unit (contorl unit) Ground Voltage
1, 2 —Battery voltage
(Approx. 12 V)
SFIA3326E
ABS actuator and electric unit (contorl unit) Ground Continuity
3, 4 — Yes
SFIA3325E

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-29
[ABS]
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CAN Communication SystemBFS000DB
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check
terminal for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace
the terminal.
2. Connect connectors securely and perform self-diagnosis again.
Is above displayed on self-diagnosis display?
YES >> Print out the self-diagnostic results and refer to LAN-49, "CAN System Specification Chart" .
NO >> Connector terminal connector is loose, damaged, open or shorted.
Self-diagnostic results
CAN COMM CIRCUIT

BRC-30
[ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS

TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
Excessive ABS Function Operation FrequencyBFS000DC
1. CHECK START
Check front/rear brake force distribution using a brake tester. Refer to BR-40, "
SERVICE DATA AND SPECIFI-
CATIONS (SDS)" .
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-5, "
On-
Vehicle Inspection" , Rear: RAX-3, "On-Vehicle Inspection" .
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 connection

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

Replace wheel sensor or sensor rotor.

Repair harness.
4. CHECK ABS WARNING LAMP DISPLAY
Make sure that the warning lamp turns off approximately 1 second after the ignition switch is turned ON or
when driving.
OK or NG
OK >> Normal
NG >> Perform self-diagnosis. Refer to BRC-17, "
Self-Diagnosis" .
Unexpected Pedal ActionBFS000DD
1. CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Refer to BR-6, "
Inspection and Adjustment" .
Is the stroke too big?
YES >>
Bleed air from the brake piping. Refer to BR-10, "Bleeding Brake System" .

Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake fluid
leakage, etc. Repair if necessary. Refer to Brake pedal: BR-7, "
COMPONENTS" , brake
booster and master cylinder: BR-22, "
COMPONENTS" .
NO >> GO TO 2.

TROUBLE DIAGNOSIS FOR SYMPTOMS
BRC-31
[ABS]
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2. CHECK FUNCTION
Disconnect ABS actuator and electric unit (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. Check Wheel Sensor and Sensor Rotor. Refer to BRC-30, "Excessive ABS Function
Operation Frequency" .
NG >> Check brake system.
Longer Stopping DistanceBFS000DE
CAUTION:
The stopping distance on slippery road surfaces might be longer with the ABS operating than when
the ABS is not operating.
1. CHECK FUNCTION
Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connectors to deactivate
ABS. In this condition, check stopping distance. After inspection, connect connectors.
OK or NG
OK >> GO TO 3. Check Wheel Sensor and Sensor Rotor. Refer to BRC-30, "Excessive ABS Function
Operation Frequency" .
NG >>

Bleed air from the brake piping. Refer to BR-10, "Bleeding Brake System" .

Check brake system.
ABS Function Does Not OperateBFS000DF
CAUTION:
ABS does not operate when speed is 10 km/h (6 MPH) or lower.
1. CHECK ABS WARNING LAMP DISPLAY
Make sure that the warning lamp turns off approximately 1 second after the ignition switch is turned ON or
when driving.
OK or NG
OK >> GO TO 3. Check Wheel Sensor and Sensor Rotor. Refer to BRC-30, "Excessive ABS Function
Operation Frequency" .
NG >> Perform self-diagnosis. Refer to BRC-17, "
Self-Diagnosis" .
Pedal Vibration and ABS Operation Sound OccursBFS000DG
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.

When shifting gears

When driving on slippery road

During cornering at high speed

When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]

When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or more]
1. SYMPTOM CHECK 1
Check if there is pedal vibration and operation sound when the engine is started.
OK or NG
OK >> GO TO 2.
NG >> Perform self-diagnosis. Refer to BRC-17, "
Self-Diagnosis" .