NISSAN TEANA 2003 Service Manual

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-71
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Steering Angle Sensor SystemBFS000EB
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector and steering
angle sensor connector, and check the terminal for deformation, disconnection, looseness, and so on.
Repair or replace the malfunctioning part if there are.
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 STEERING ANGLE SENSOR HARNESS
1. Check CAN communication system. Refer to BRC-81, "
CAN Communication System" .
2. Turn ignition switch OFF and disconnect steering angle sensor connector M26.
3. Check continuity between steering angle sensor harness con-
nector and ground.
4. Check voltage between steering angle sensor harness connec-
tor and ground.
OK or NG
OK >> GO TO 4.
NG >> Open or short in harness. Repair or replace harness.
Self-diagnostic results
ST ANGLE SIG CIRCUIT
Steering angle sensor Ground Continuity
2—Yes
SFIA1189E
Steering angle sensor Ground Voltage
3 — Battery voltage (Approx. 12 V)
SFIA1190E

BRC-72
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

4. CHECK DATA MONITOR
1. Connect ABS actuator and electric unit (control unit) connector and steering angle sensor.
2. Perform “ST ANGLE SIG” at “DATA MONITOR” to check if the status is normal.
OK or NG
OK >> Perform self-diagnosis again.
NG >> Replace steering angle sensor, and then adjust neutral position of steering angle sensor. Refer to
BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .
Yaw Rate/Side/Decel G Sensor SystemBFS000EC
CAUTION:
When the vehicle turns sharply, such as a spin turn, accel turn, or drift driving, while the VDC function
is OFF (VDC OFF indicator lamp turns on), a malfunction may occur in the yaw rate/side/decel G sen-
sor system, so in this case, restart the engine, and if it recovers normally, there is no malfunction.
Always erase memory after that. Refer to BRC-58, "
ERASE MEMORY" .
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector and yaw rate/
side/decel G sensor connector, and check the terminal for deformation, disconnection, looseness, and so
on. Repair or replace the malfunctioning part if there are.
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.
Steering condition DATA MONITOR
Straight-ahead position−5° to +5°
Turn wheel to the right by 90°. Approx. +90°
Turn wheel to the left by 90°. Approx. −90°
Self-diagnostic results
YAW RATE SENSOR
SIDE G-SEN CIRCUIT
G-SENSOR

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-73
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

3. CHECK YAW RATE/SIDE/DECEL G SENSOR HARNESS
1. Turn ignition switch OFF and disconnect ABS actuator and elec-
tric unit (control unit) connector E241 and yaw rate/side/decel G
sensor connector M66.
2. Check continuity between ABS actuator and electric unit (control
unit) connector and yaw rate/side/decel G sensor connector.
OK or NG
OK >> GO TO 4.
NG >> Open or short in harness. Repair or replace harness.
4. CHECK YAW RATE/SIDE/DECEL G SENSOR
1. Connect connectors of ABS actuator and electric unit (control unit) and yaw rate/side/decel G sensor.
2. Use “DATA MONITOR” to make sure that G sensor (yaw rate/side) operates normally.
Data Monitor Standard
OK or NG
OK >> INSPECTION END
NG >> Yaw rate/side/decel G sensor malfunction. Replace sensor, and after replacement, perform self-
diagnosis again.
SFIA2112E
ABS actuator and electric unit (control unit) Yaw rate/side/decel G sensor Continuity
19 1
Ye s 36 2
35 3
34 4
45
66
Vehicle status Yaw rate sensor Side G sensor Decel G sensor
When stopped−99 to +99 d/s
−1.1 to +1.1 m/s
2−0.21 to +0.21 G
Right turn Positive value Negative value —
Left turn Negative value Positive value —
During acceleration — — Positive value
During deceleration — — Negative value

BRC-74
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

Pump Motor, Motor Relay SystemBFS000ED
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
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
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 MOTOR AND MOTOR RELAY POWER SYSTEM
1. Turn ignition switch OFF and disconnect ABS actuator and elec-
tric unit (control unit) connector.
2. Check voltage between the ABS actuator and electric unit (con-
trol unit) harness connector E241 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Circuit malfunction between battery and ABS actuator
and electric unit (control unit). Repair circuit.
4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

ABS actuator and electric unit (control unit) harness connector
E241 terminals 31, 46 and ground.
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Harness or connector is open or shorted. Repair or
replace malfunctioning components.
Self-diagnostic results
PUMP MOTOR
ABS actuator and electric unit (contorl unit) Ground Voltage
1—Battery voltage
(Approx. 12 V)
SFIA2100E
ABS actuator and electric unit (contorl unit) Ground Continuity
31, 46 — Yes
SFIA2114E

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-75
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Park/Neutral Position (PNP) Switch CircuitBFS000N8
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnostic results.
Is above displayed on the self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK DATA MONITOR
Select “P POSI SIG” and “N POSI SIG” in “DATA MONITOR” and check Park/Neutral position switch signal.
OK or NG
OK >>
Replace ABS actuator and electric unit (control unit).

Perform the self-diagnosis, and make sure that the result shows “NO DTC IS DETECTED”.
NG >> GO TO 3.
3. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH
Perform Park/Neutral position switch inspection. Refer to CVT-62, "
DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
OK or NG
OK >>
Replace ABS actuator and electric unit (control unit).

Perform the self-diagnosis, and make sure that the result shows “NO DTC IS DETECTED”.
NG >>

Repair or replace malfunctioning components.

Perform the self-diagnosis, and make sure that the result shows “NO DTC IS DETECTED”.
Self-diagnostic results
PNP POSI SIG
Select lever position DATA MONITOR
P position P
N position N

BRC-76
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

Solenoid and VDC Change-Over Valve, Actuator Relay SystemBFS000EE
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector, and check ter-
minal for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace ter-
minal.
2. Securely reconnect connectors and perform self-diagnosis again.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK SOLENOID, VDC CHANGE-OVER VALVE, ACTUATOR RELAY POWER SUPPLY
1. Turn ignition switch OFF and disconnect ABS actuator and elec-
tric unit (control unit) connectors.
2. Check voltage between ABS actuator and electric unit (control
unit) harness connector E241 terminal 16 and ground.
OK or NG
OK >> GO TO 4.
NG >> Circuit malfunction between battery and ABS actuator
and electric unit (control unit). Repair the circuit.
Self-diagnostic results
FR LH IN ABS SOL
FR LH OUT ABS SOL
FR RH IN ABS SOL
FR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
CV 1
CV 2
SV 1
SV 2
ACTUATOR RLY
ABS actuator and electric unit (contorl unit) Ground Voltage
16 —Battery voltage
(Approx. 12 V)
SFIA2102E

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-77
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

4. CHECK SOLENOID, VDC CHANGE-OVER VALVE, ACTUATOR RELAY GROUND CIRCUIT

Check continuity between ABS actuator and electric unit (control
unit) harness connector E241 terminal 46 and ground.
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Harness or connector is open or shorted. Repair or
replace malfunctioning components.
Stop Lamp Switch SystemBFS000EF
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector and stop lamp
switch connector, and check terminal for deformation, disconnection, looseness, and so on. If there is a
malfunction, repair or replace the terminal.
2. Securely reconnect connectors.
3. Start engine.
4. Repeat pumping brake pedal carefully several times, and then perform self-diagnosis again.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
ABS actuator and electric unit (contorl unit) Ground Continuity
46 — Yes
SFIA2103E
Self-diagnostic results
STOP LAMP SW

BRC-78
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

3. CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF and disconnect ABS actuator and elec-
tric unit (control unit) harness connectors.
2. Check voltage between the ABS actuator and electric unit (con-
trol unit) harness connector E241 terminal 23 and ground.
OK or NG
OK >> Connect connector securely and perform self-diagnosis again.
NG >> Stop lamp switch circuit malfunction. Repair the circuit.
ABS Actuator and Electric Unit (Control Unit) Power Supply and Ground Sys-
tem
BFS000EG
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) harness connector,
and check 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 is loose, damaged, open or shorted.
NG >> GO TO 3.
SFIA2104E
ABS actuator and electric unit (control unit) Ground Measurement condition Voltage
23 —Brake pedal depressedBattery voltage
(Approx. 12 V)
Brake pedal not depressed Approx. 0 V
Self-diagnostic results
BATTERY VOLTAGE [ABNORMAL]

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-79
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER AND GROUND CIRCUIT
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E241.
2. Check voltage between ABS actuator and electric unit (control
unit) harness connector E241 terminal 45 and ground with igni-
tion switch turned ON and OFF.
3. Check continuity between ABS actuator and electric unit (control
unit) harness connector E241 terminals 31, 46 and ground.
OK or NG
OK >> Check battery for loose terminal and low voltage mal-
function. Repair if there is a malfunction.
NG >> Corresponding harness circuit malfunction. Repair the
circuit.
SFIA2113E
ABS actuator and electric unit (control unit) Ground Measurement condition Voltage
45 —Ignition switch ONBattery voltage
(Approx. 12 V)
Ignition switch OFF Approx. 0 V
ABS actuator and electric unit (contorl unit) Ground Continuity
31, 46 — Yes
SFIA2114E

BRC-80
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

Brake Fluid Level Switch SystemBFS000EH
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
1. Check fluid level in brake fluid reservoir tank. If the level is low, add brake fluid.
2. Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector and brake fluid
level switch, and check terminal for deformation, disconnection, looseness, and so on. Repair or replace if
there is a malfunction.
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 HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELEC-
TRIC UNIT (CONTROL UNIT)
1. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
2. Check continuity between ABS actuator and electric unit (control
unit) harness connector E241 and brake fluid level switch con-
nector E52.
OK or NG
OK >> Connect connector securely and perform self-diagnosis
again.
NG >> If open or short in harness, repair or replace the har-
ness.
Self-diagnostic results
BR FLUID LEVEL LOW
ABS actuator and electric unit
(control unit)Brake fluid level switch Continuity
38 1 Yes
38 Ground No
Ground 2 Yes
SFIA2105E