brake sensor NISSAN TEANA 2008 Owner's Guide

BRC-108
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C1142 PRESS SENSOR
C1142 PRESS SENSOR
DescriptionINFOID:0000000003766953
The pressure sensor converts the brake fluid pressure to an electric signal and transmits it to the ABS actuator
and electric unit (control unit). [The pressure sensor is integrated in the ABS actuator and electric unit (control
unit).]
DTC LogicINFOID:0000000003766954
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
1. Turn the ignition switch ON.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC
“C1142” detected?
YES >> Proceed to diagnosis procedure. Refer to BRC-108, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003766955
1.CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to BRC-99, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace malfunction component.
2.CHECK DATA MONITOR
Check pressure sensor signal. Refer to BRC-108, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >>  Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system
fluid leakage, etc.
- Brake pedal: Refer to BR-6, "
Inspection and Adjustment".
- Brake booster: Refer to BR-12, "
Inspection".
- Brake master cylinder: Refer to BR-11, "
Inspection".
3.ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is any item indicated on the self-diagnosis display?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection
with harness connector. If any items are damaged, repair or replace damaged parts.
Component InspectionINFOID:0000000003766956
1.CHECK DATA MONITOR
On “DATA MONITOR”, select “PRESS SENSOR” and check the brake fluid pressure.
DTC Display item Malfunction detected condition Possible cause
C1142 PRESS SEN CIRCUITPressure sensor signal line is open or shorted, or pres-
sure sensor is malfunctioning. Harness or connector
 Stop lamp switch
 ABS actuator and electric unit
(control unit)

C1142 PRESS SENSOR
BRC-109
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
N
O
P
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to diagnosis procedure. Refer to BRC-108, "
Diagnosis Procedure".
Special Repair RequirementINFOID:0000000003767345
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to BRC-66, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
TRAL POSITION : Description".
>> END
ConditionPRESS SENSOR
(DATA MONITOR)
With ignition switch turned ON and brake pedal released. Approx. 0 bar
With ignition switch turned ON and brake pedal depressed.− 40 to 300 bar

C1155 BRAKE FLUID LEVEL SWITCH
BRC-117
< COMPONENT DIAGNOSIS >[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
N
O
P
Is the inspection result normal?
YES >> Replace combination meter.
NO >> Repair or replace damaged parts.
Component InspectionINFOID:0000000003766984
1.CHECK BRAKE FLUID LEVEL SWITCH
1. Turn the ignition switch OFF.
2. Disconnect brake fluid level switch connector.
3. Check the continuity between brake fluid level switch connector terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace reservoir tank. Refer to BR-25, "
Exploded View".
Special Repair RequirementINFOID:0000000003767349
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to BRC-66, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
TRAL POSITION : Description".
>> END
Combination meter
—Continuity
Connector Terminal
M34 27 Ground Not existed
Brake fluid level switch
Condition Continuity
Te r m i n a l
1 − 2When brake fluid is full in the reservoir tank. Not existed
When brake fluid is empty in the reservoir
tank.Existed

BRC-132
< ECU DIAGNOSIS >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
ECU DIAGNOSIS
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference ValueINFOID:0000000003767019
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short-circuited.
Monitor item Display contentData monitor
ConditionReference value in
normal operation
FR LH SENSORWheel speed calculated by front LH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
FR RH SENSORWheel speed calculated by front RH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
RR LH SENSORWheel speed calculated by rear LH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
RR RH SENSORWheel speed calculated by rear RH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
STOP LAMP SW Stop lamp switch signal statusWhen brake pedal is depressed On
When brake pedal is not depressed Off
BATTERY VOLTBattery voltage supplied to the ABS ac-
tuator and electric unit (control unit)Ignition switch ON 10 – 16 V
GEAR Gear position determined by TCM1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
7th gear
8th gear
other0
1
2
3
4
5
6
7
0
OFF SW VDC OFF switch ON/OFFVDC OFF switch ON
(When VDC OFF indicator lamp is ON)On
VDC OFF switch OFF
(When VDC OFF indicator lamp is OFF)Off
YAW RATE SENYaw rate detected by yaw rate/side G
sensorVehicle stopped Approx. 0 d/s
Vehicle turning right Negative value
Vehicle turning left Positive value
ACCEL POS SIG Throttle actuator opening/closing is
displayed (linked with accelerator ped-
al)Accelerator pedal not depressed
(ignition switch is ON)0 %
Depress accelerator pedal
(ignition switch is ON)0 - 100 %

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-133
< ECU DIAGNOSIS >[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
N
O
P
SIDE G-SENSORTransverse G detected by side G sen-
sorVehicle stopped
Approx. 0 m/s
2
Vehicle turning right Negative value
Vehicle turning left Positive value
STR ANGLE SIGSteering angle detected by steering an-
gle sensorDriving straight±2.5°
Turn 90° to right Approx. +90°
Turn 90° to left Approx. –90°
PRESS SENSORBrake fluid pressure detected by pres-
sure sensorWith ignition switch turned ON and brake
pedal releasedApprox. 0 bar
With ignition switch turned ON and brake
pedal depressed–40 to 300 bar
ENGINE RPM With engine runningWith engine stopped 0 rpm
Engine runningAlmost in accor-
dance with tachome-
ter display
FLUID LEV SW Brake fluid level switch signal statusWhen brake fluid level switch ON On
When brake fluid level switch OFF Off
PARK BRAKE SW Parking brake switch signal statusParking brake switch is active On
Parking brake switch is inactive Off
FR RH IN SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
FR RH OUT SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
FR LH IN SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
FR LH OUT SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
RR RH IN SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
RR RH OUT SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off Monitor item Display contentData monitor
ConditionReference value in
normal operation

BRC-140
< ECU DIAGNOSIS >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
 For malfunction of ABS, only the EBD is activated and the condition of vehicle is the same condition of vehi-
cles without TCS/ABS system.
NOTE:
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.
 For malfunction of EBD, EBD and ABS become inoperative, and the condition of vehicle is the same as the
condition of vehicles without TCS/ABS, EBD system.
VDC/TCS
If VDC/TCS/ABS system malfunction electrically, VDC OFF indicator lamp, SLIP indicator lamp are turned on,
and the condition of vehicle is the same as the condition of vehicles without VDC/TCS control.
CAUTION:
If the Fail-Safe function is activated, then perform self-diagnosis for VDC/TCS/ABS control system.
DTC No. IndexINFOID:0000000003767022
DTC Items (CONSULT screen terms) Reference
C1101 RR RH SENSOR-1
BRC-85, "
DTC Logic"C1102 RR LH SENSOR-1
C1103 FR RH SENSOR-1
C1104 FR LH SENSOR-1
C1105 RR RH SENSOR-2
BRC-88, "
DTC Logic"C1106 RR LH SENSOR-2
C1107 FR RH SENSOR-2
C1108 FR LH SENSOR-2
C1109 BATTERY VOLTAGE [ABNORMAL]BRC-91, "
DTC Logic"
C1110 CONTROLLER FAILUREBRC-93, "DTC Logic"
C 1111 P U M P M O T O RBRC-94, "DTC Logic"
C1115 ABS SENSOR [ABNORMAL SIGNAL]BRC-96, "DTC Logic"
C1116 STOP LAMP SWBRC-99, "DTC Logic"
C1120 FR LH IN ABS SOLBRC-101, "DTC Logic"
C1121 FR LH OUT ABS SOLBRC-103, "DTC Logic"
C1122 FR RH IN ABS SOLBRC-101, "DTC Logic"
C1123 FR RH OUT ABS SOLBRC-103, "DTC Logic"
C1124 RR LH IN ABS SOLBRC-101, "DTC Logic"
C1125 RR LH OUT ABS SOLBRC-103, "DTC Logic"
C1126 RR RH IN ABS SOLBRC-101, "DTC Logic"
C1127 RR RH OUT ABS SOLBRC-103, "DTC Logic"
C1130 ENGINE SIGNAL 1BRC-105, "DTC Logic"
C1140 ACTUATOR RLYBRC-106, "DTC Logic"
C1142 PRESS SEN CIRCUITBRC-108, "DTC Logic"
C1143 ST ANG SEN CIRCUITBRC-110, "DTC Logic"
C1144 ST ANG SEN SIGNALBRC-112, "DTC Logic"
C1145 YAW RATE SENSOR
BRC-113, "DTC Logic"C1146 SIDE G-SEN CIRCUIT
C1153 EMERGENCY BRAKEBRC-93, "
DTC Logic"
C1155 BR FLUID LEVEL LOWBRC-116, "DTC Logic"
C1164 CV 1
BRC-118, "DTC Logic"C1165 CV 2

BRC-142
< SYMPTOM DIAGNOSIS >[VDC/TCS/ABS]
EXCESSIVE ABS FUNCTION OPERATION FREQUENCY
SYMPTOM DIAGNOSIS
EXCESSIVE ABS FUNCTION OPERATION FREQUENCY
Diagnosis ProcedureINFOID:0000000003767023
1.CHECK START
Check front and rear brake force distribution using a brake tester. Refer to BR-45, "
General Specifications".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check brake system.
2.CHECK FRONT AND REAR AXLE
Make sure that there is no excessive play in the front and rear axles.
 Front: Refer to FA X - 6 , "
Inspection".
 Rear: Refer to RAX-3, "
Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace malfunctioning components.
3.CHECK WHEEL SENSOR AND SENSOR ROTOR
Check the following.
 Wheel sensor installation for damage.
 Sensor rotor installation for damage.
 Wheel sensor connector connection.
 Wheel sensor harness inspection.
Is the inspection result normal?
YES >> GO TO 4.
NO >>  Replace wheel sensor or sensor rotor.
 Repair harness.
4.CHECK ABS WARNING LAMP DISPLAY
Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving.
Is the ABS warning lamp illuminated?
YES >> Perform self-diagnosis.
NO >> Normal

BRC-148
< SYMPTOM DIAGNOSIS >[VDC/TCS/ABS]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003767029
Symptom Result
Slight vibrations are felt on the brake pedal and the operation noises occur, when VDC, TCS or ABS is acti-
vated.
This is a normal condi-
tion due to the VDC,
TCS or ABS activation. Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
The brake pedal moves and generates noises, when TCS or VDC is activated due to rapid acceleration or
sharp turn.
The brake pedal vibrates and motor operation noises occur from the engine room, after the engine starts and
just after the vehicle starts.This is a normal, and it is
caused by the ABS op-
eration check.
Depending on the road conditions, the driver may experience a sluggish feel. This is normal, because
TCS places the highest
priority on the optimum
traction (stability). TCS may activate momentarily if wheel speed changes when driving over location where friction coefficient
varies, when downshifting, or when fully depressing accelerator pedal.
The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn ON when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is rotating on a turntable or located on
a ship while the engine is running. In this case, restart the
engine on a normal
road. If the normal con-
dition is restored, there
is no malfunction. At
that time, erase the self-
diagnosis memory. VDC may not operate normally or the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp
may illuminate, when running on a special road that is extremely slanted (e.g. bank in a circuit course).
A malfunction may occur in the yaw rate/side G sensor system, when the vehicle turns sharply, such as dur-
ing a spin turn, axle turn, or drift driving, while the VDC function is off (VDC OFF indicator lamp illuminated).
The vehicle speed will not increase even though the accelerator pedal is depressed, when inspecting the
speedometer on a 2-wheel chassis dynamometer. Normal (Deactivate the
VDC/TCS function be-
fore performing an in-
spection on a chassis
dynamometer.)
VDC OFF indicator lamp and SLIP indicator lamp may simultaneously turn on when low tire pressure warn-
ing lamp turns on.This is not a VDC sys-
tem error but results
from characteristic
change of tire.

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-155
< ON-VEHICLE REPAIR >[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
N
O
P
 To remove brake tube, use a flare nut wrench to prevent flare nuts and brake tube from being dam-
aged. To install, use flare nut crowfoot and torque wrench.
 Do not apply excessive impact to ABS actuator and electric unit (control unit), such as dropping it.
 Do not remove and install actuator by holding harness.
 After work is completed, bleed air from brake tube. Refer to BR-10, "
Bleeding Brake System".
 After installing harness connector in the ABS actuator and electric unit (control unit), make sure
connector is securely locked.
 When replacing ABS actuator and electric unit (control unit), make sure to adjust neutral position of
steering angle sensor. Refer to BRC-66, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
Install ABS actuator and electric unit (control unit) as per the follow-
ing steps.
1. Temporarily tighten mounting bolt (1) because the bracket (2) is
temporarily being hold.
2. Tighten mounting bolt (3) while holding the bracket.
3. Tighten mounting bolts to the specified torque in the order of (4),
(1).
JSFIA0271ZZ

BCM (BODY CONTROL MODULE)
DEF-45
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
DEF
N
O
P
111
(L/Y)GroundSteering lock unit
communicationInput/
OutputSteering lockLOCK status Battery voltage
LOCK or UNLOCK
For 15 seconds after UN-
LOCKBattery voltage
15 seconds or later after
UNLOCK0 V
11 3
(P/B)Ground Optical sensor InputIgnition switch
ONWhen bright outside of
the vehicleClose to 5 V
When dark outside of the
vehicleClose to 0 V
11 5
(L)Ground Shock sensor Input Ignition switchOFF 0 V
ACC 5.0 V
ON
2.5 V
11 6
(R/W)GroundFuse check (Stop
lamp switch)Input — Battery voltage
11 8
(O/L)Ground Stop lamp switch Input Stop lamp switchOFF (Brake pedal is not
depressed)0 V
ON (Brake pedal is de-
pressed)Battery voltage
11 9
(G/W)GroundFront door lock as-
sembly driver side
(unlock sensor)Input Driver doorLOCK status (unlock sen-
sor switch OFF)
1.1 V
UNLOCK status (unlock
sensor switch ON)0 V
121
(Y)Ground Key slot switch InputWhen the key is inserted into key slot Battery voltage
When the key is not inserted into key slot 0 V
122
(V/R)Ground ACC feedback Input Ignition switchOFF 0 V
ACC or ON Battery voltage
123
(G/W)Ground IGN feedback Input Ignition switchOFF or ACC 0 V
ON Battery voltage Te r m i n a l N o .
(Wire color)Description
ConditionVa l u e
(Approx.)
Signal nameInput/
Output +–
JMKIA0066GB
JPMIA1034GB
JPMIA0012GB