sensor NISSAN X-TRAIL 2003 Service Repair Manual

TROUBLE DIAGNOSIS
BRC-77
[ESP/TCS/ABS]
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(Note 1): Check the pressure of the tyre in normal condition.
(Note 2): ON/OFF timing of the ABS warning lamp
ON: For approximately 0.5 seconds after the ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 0.5 seconds after the ignition switch is turned ON (when the system is in normal operation).
(Note 3): ON/OFF timing of the ESP OFF indicator lamp
ON: For approximately 0.5 seconds after the ignition switch is turned ON, or when a malfunction is detected ESP OFF switch is ON.
OFF: Approximately 0.5 seconds after the ignition switch is turned ON (when the system is in normal operation) or when ESP OFF
switch is OFF.
(Note 4): SLIP indicator lamp ON/OFF timing
ON: For approximately 0.5 seconds after the ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 0.5 seconds after the ignition switch is turned ON (when the system is in normal operation) and ESP/TCS function
is not activated.
Flashing: ESP/TCS function is active during driving.
CONSULT-II Functions EFS001A7
CONSULT-II MAIN FUNCTION
In a diagnosis function (main function), there are “WORK SUPPORT”, “SELF-DIAGNOSTIC RESULTS”,
“DATA MONITOR”, “CAN DIAG SUPPORT MNTR”, “ACTIVE TEST”, “FUNCTION TEST”, “ECU PART NUM-
BER”.
CONSULT-II BASIC OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL)”.
Diagnostic
test modeFunction Reference
WORK SUP-
PORTThis mode enables a technician to adjust some devices faster and more accurately
by following the indications on CONSULT-II.BRC-51, "
Adjustment of
Steering Angle Sensor Neu-
tral Position"
SELF-DIAG-
NOSTIC
RESULTSSelf-diagnostic results can be read and erased quickly.BRC-79, "
SELF-DIAGNOSIS"
DATA MONI-
TORInput/Output data in the ESP/TCS/ABS control unit can be read.BRC-81, "DATA MONITOR"
CAN DIAG
SUPPORT
MNTRThe results of transmit/receive diagnosis of communication can be read. —
ACTIVE TESTDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the
ESP/TCS/ABS control unit and also shifts some parameters in a specified range.BRC-84, "
ACTIVE TEST"
FUNCTION
TESTConducted by CONSULT-II instead of a technician to determine whether each sys-
tem is “OK” or “NG”.—
ECU PART
NUMBERESP/TCS/ABS control unit part number can be read. —
SKIA3098E

TROUBLE DIAGNOSIS
BRC-79
[ESP/TCS/ABS]
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SELF-DIAGNOSIS
Description

If an error is detected in the system, ABS warning lamp, ESP OFF indicator lamp and SLIP indicator lamp
on the combination meter turn on. In this case, perform self-diagnosis as follows:

While CONSULT-II is used, ABS warning lamp, ESP OFF indicator lamp, SLIP indicator lamp may be
turned on in a case of no malfunctioning.
Operation Procedure
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
3. Turn ignition switch ON.
4. Start engine and drive at 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping vehicle, with the engine running, touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-
DIAG RESULTS” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on the
ignition switch, “ABS” might not be displayed in the System Selection screen. In this case, repeat
the operation from step 1. If it cannot be shown after several attempts, ABS actuator and electric
unit (control unit) may have malfunctioned.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by
touching “PRINT”.)

When “NO FAILURE” is displayed, check ABS warning lamp, ESP OFF indicator lamp and SLIP indica-
tor lamp.
7. Perform the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:

In a case that a wheel sensor is malfunctioning, ABS warning lamp, ESP OFF indicator lamp,
SLIP indicator lamp will turn on. If vehicle is not driven at approximately 30 km/h (19 MPH) or
more for at least approximately 1 minute after repair of the wheel sensor system, ABS warning
lamp, ESP OFF indicator lamp and SLIP indicator lamp may not turn off even if everything is
normal. Check again to make sure that there is no malfunction on other parts.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE
MEMORY” in order on the CONSULT-II screen to erase the error memory.
If “ABS” is not indicated, go to GI-35, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the error memory is not erased, re-perform the operation from step 5.
11. For the final inspection, drive at 30 km/h (19 MPH) or more for approximately 1 minute and confirm that
ABS warning lamp, ESP OFF indicator lamp and SLIP indicator lamp are OFF.

BRC-80
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Display Item List
Self-Diagnostic item Malfunction detecting condition Check route
FR LH SENSOR – 1 Circuit of front LH wheel sensor is open.
Wheel sensor and cir-
cuit. Refer to BRC-89
RR RH SENSOR – 1 Circuit of rear RH wheel sensor is open.
FR RH SENSOR – 1 Circuit of front RH wheel sensor is open.
RR LH SENSOR – 1 Circuit of rear LH wheel sensor is open.
FR LH SENSOR – 2 Front LH wheel sensor is shorted or input signal is abnormal.
RR RH SENSOR – 2 Rear RH wheel sensor is shorted or input signal is abnormal.
FR RH SENSOR – 2 Front RH wheel sensor is shorted or input signal is abnormal.
RR LH SENSOR – 2 Rear LH wheel sensor is shorted or input signal is abnormal.
MAIN RELAYDuring the actuator relay operating with OFF, when the actuator
relay turns ON. Or when the control line for the relay is shorted to
the ground.Actuator relay and cir-
cuit. Refer to BRC-101
During the actuator relay operating with ON, when the actuator
relay turns OFF, or when the control line for the relay is open.
STOP LAMP SW Stop lamp switch circuit is open.Stop lamp switch and cir-
cuit. Refer to BRC-103
PRESS SEN CIRCUIT Pressure sensor signal line is open or shorted, or pressure sen-
sor is abnormal.Pressure sensor and cir-
cuit. Refer to BRC-91
ST ANGLE SEN CIRCUIT Neutral position of steering angle sensor is dislocated, or the
steering angle sensor is abnormal.Steering angle sensor
and circuit. Refer to
BRC-93
YAW RATE SENOR Yaw rate sensor is abnormal, or the yaw rate sensor signal line is
open or shorted.Yaw rate/side Gsensor
and circuit. Refer to
BRC-95
FR LH IN ABS SOLCircuit of front LH wheel inlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
Solenoid valve and cir-
cuit. Refer to BRC-96
FR LH OUT ABS SOLCircuit of front LH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
RR RH IN ABS SOLCircuit of rear RH wheel inlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
RR RH OUT ABS SOLCircuit of rear RH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
FR RH IN ABS SOLCircuit of front RH wheel inlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
FR RH OUT ABS SOLCircuit of front RH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
RR LH IN ABS SOLCircuit of rear LH wheel inlet solenoid valve is open or shorted, or
the control line is open or shorted to the power supply or the
ground.
RR LH OUT ABS SOLCircuit of rear LH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.

TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
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(note) “ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay and circuit.
DATA MONITOR
For details of the data monitor function, refer to CONSULT-II Instruction Manual.
USV LINE [FL-RR]ESP switch-over solenoid valve 1 on the primary side is open cir-
cuit or shorted, or the control line is open or shorted to the power
supply or the ground.
ESP switch-over sole-
noid valve and circuit.
Refer to BRC-96
. USV LINE [FR-RL]ESP switch-over solenoid valve 1 on the secondary side is open
circuit or shorted, or the control line is open or shorted to the
power supply or the ground.
HSV LINE [FL-RR]ESP switch-over solenoid valve 2 on the primary side is open cir-
cuit or shorted, or the control line is open or shorted to the power
supply or the ground.
HSV LINE [FR-RL]ESP switch-over solenoid valve 2 on the secondary side is open
circuit or shorted, or the control line is open or shorted to the
power supply or the ground.
PUMP MOTOR
ACTUATOR RLY (note) During the actuator motor operating with ON, when the actuator
motor turns OFF, or when the control line for actuator motor relay
is open.Actuator motor, motor
relay, and circuit. Refer
to BRC-99
During the actuator motor operating with OFF, when the actuator
motor turns ON, or when the control line for relay is shorted to
ground.
ABS SENSOR
[ABNORMAL SIGNAL]Wheel sensor input is abnormal.Wheel sensor and cir-
cuit. Refer to BRC-89
BATTERY VOLTAGE
[ABNORMAL]ESP/TCS/ABS control unit battery voltage is too low.ESP/TCS/ABS control
unit battery voltage cir-
cuit and ground circuit.
Refer to BRC-103
ST ANGLE SEN SIGNALNeutral position correction of steering angle sensor is not fin-
ished.Neutral position adjust-
ment of steering angle
sensor. Refer to BRC-
105
ST ANG SEN COM CIRCAN communication system or steering angle sensor is abnor-
mal.Steering angle sensor
and CAN communication
circuit. Refer to BRC-107
SIDE G-SEN CIRCUITSide G sensor is abnormal, or circuit of side G sensor is open or
shorted.Yaw rate/ Side G sensor
and circuit. Refer to
BRC-95
EMERGENCY BRAKEESP/TCS/ABS control unit malfunction (pressure increase is too
much or too little.)ESP/TCS/ABS control
unit. Refer to BRC-105
CONTROLLER FAILURE ESP/TCS/ABS internal malfunction of control unitESP/TCS/ABS control
unit. Refer to BRC-91
CAN COMM CIRCUIT

CAN communication line is open or shorted.

ESP/TCS/ABS control unit internal malfunction.

Battery voltage for ECM is interrupted instantaneously for
Approx. 0.5 seconds or more.Communication circuit
between ESP/TCS/ABS
control unit and units.
Refer to BRC-107
BR FLUID LEVEL LOWBrake fluid level drops or communication line between the ESP/
TCS/ABS control unit and brake fluid level warning switch is open
or shorted. Communication circuit
between the ESP/TCS/
ABS control unit and the
brake fluid level warning
switch.
Reservoir tank fluid.
Refer to BRC-106

ENGINE SIGNAL 1-4, 6 Major engine components are abnormal Engine system. Refer to
BRC-91
Self-Diagnostic item Malfunction detecting condition Check route

BRC-82
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Operation Procedure
1. After turning OFF ignition switch, connect CONSULT-II and CONVERTER to data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-35, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on
ignition switch, “ABS” might not be displayed in the system selection screen. In this case, repeat
the operation from step 1.
4. Return to the Monitor Item Selection screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to the following information.
5. When “START” is touched, the data monitor screen is displayed.
Display Item List
Data Monitor Item (Unit)Data Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
GEAR (A/T MODEL)×××The gear position determined
from A/T PNP switch signal is dis-
played.l
SLCT LVR POSI (A/T MODEL)×××Shift position determined from the
A/T PNP switch signal is dis-
played.
FR RH SENSOR [km/h]×××Wheel speed calculated by front
RH wheel sensor signal is dis-
played.
FR LH SENSOR [km/h]×××Wheel speed calculated by front
LH wheel sensor signal is dis-
played.
RR RH SENSOR [km/h]×××Wheel speed calculated by rear
RH wheel sensor signal is dis-
played.
RR LH SENSOR [km/h]×××Wheel speed calculated by rear
LH wheel sensor signal is dis-
played.
ACCEL POS SIG
(%)×––Throttle valve open/close status
judged by the CAN communica-
tion signal is displayed.
ENGINE RPM
(rpm)×–×Engine speed judged by the CAN
communication signal is dis-
played.
CAN COM START
(ON/OFF)––×Communication status of CAN
communication is displayed.
STR ANGLE SIG
(°)×–×Steering wheel angle detected by
the steering angle sensor is dis-
played.
YAW RATE SEN
(d/s)××–Yaw rate detected by the yaw rate
sensor is displayed.
SIDE G-SENSOR
(m/s
2 )×–×Transverse acceleration detected
by the side G sensor is displayed.
PRESS SENSOR
(bar )×–×Brake fluid pressure detected by
the pressure sensor is displayed.

BRC-86
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

For Fast and Accurate DiagnosisEFS004H8
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read precautions. Refer to BRC-58, "How to Proceed With Diagno-
sis" .

If ESP/TCS/ABS control unit steering angle sensor, steering system parts or suspension system parts
have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of steering angle
sensor before driving. Refer to BRC-51, "
Adjustment of Steering Angle Sensor Neutral Position" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-79, "SELF-DIAGNOSIS" .

When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

To use CONSULT-II to perform self-diagnosis of ESP/TCS/ABS control unit active tests, or work support,
first stop work, then connect CONSULT-II and select “ABS”.

While self-diagnostic results of CONSULT-II shows malfunction, if CONSULT-II active test is performed,
an engine system error may be indicated. In this case, start engine to resume the normal screen.

ESP/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:
Symptom Symptom description Result
Motor operation noiseThis is noise of motor inside ESP/TCS/ABS control unit. Slight noise
may occur during ESP, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5 MPH), motor and
valves operating noise may be heard. It happens only once after IGN
(ignition) is ON. This is a normal status of the system operation check.
System operation check
noiseWhen engine starts, slight “click” noise may be heard from engine room.
This is normal and is part of system operation check.Normal
ESP/TCS operation
(SLIP indicator lamp blink-
ing)TCS may activate momentarily if wheel speed changes when driving
over location where friction coefficient varies, when up/downshifting, or
when fully depressing accelerator pedal.
Normal
Cancel the ESP/TCS
function for the
inspection on a chas-
sis dynamometer. For inspection of speedometer or other instruments, press ESP OFF
SW to turn ESP/TCS function off.
When accelerator pedal is depressed on a chassis dynamometer (fixed
front-wheel type), vehicle speed will not increase. This is not normal. It is
result of TCS being activated by stationary front wheels. Warning lamp
may also illuminate to indicate “sensor system error”. This is also nor-
mal, and is the result of the stationary front wheels being detected. To be
certain, restart engine, and drive vehicle at 30 km/h (19 MPH) or more.
Make sure warning lamp does not illuminate.
ABS operation (Longer stop-
ping distance)On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low.Normal
Insufficient feeling of accel-
erationDepending on road conditions, driver may feel that feeling of accelera-
tion is insufficient. This is because traction control, which controls
engine and brakes to achieve optimal traction, has the highest priority
(for safety). As a result, there may be times when acceleration is slightly
less than usual for the same accelerator pedal operation.Normal

TROUBLE DIAGNOSIS
BRC-89
[ESP/TCS/ABS]
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Inspection 1 Wheel Sensor SystemEFS004MT
INSPECTION PROCEDURE
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.
1. CHECK TYRE
Check air pressure, wear and size.
Are air pressure, wear and size within standard?
YES >> GO TO 2.
NO >> Adjust air pressure, or replace tyre.
2. CHECK SENSOR AND SENSOR ROTOR

Check sensor and sensor rotor.

Check sensor rotor rubber for damage.

Check sensor for disconnection or looseness.
Is inspection result OK?
OK >> GO TO 3.
NG >> Repair sensor mount or replace sensor rotor.
3. CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis displayed?
YES >> GO TO 4.
NO >> Check is completed
4. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect connector between ESP/TCS/ABS control unit and malfunctioning
wheel sensor, and check for deformation, disconnection and looseness. Repair or replace if necessary.
2. Reconnect connectors, drive vehicle at 30 km/h or more for approximately 1 minute, and then perform
self-diagnosis.
OK or NG
OK >> Poor connection of connector terminal
NG >> GO TO 5.
Self-diagnosis results
ABS SENSOR [ABNORMAL SIGNAL]
FR RH SENSOR-1
FR RH SENSOR-2
FR LH SENSOR-1
FR LH SENSOR-2
RR RH SENSOR-1
RR RH SENSOR-2
RR LH SENSOR-1
RR LH SENSOR-2
SFIA0625E

BRC-90
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
sensor connector and ESP/TCS/ABS control unit connector.
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.)
Is inspection result OK?
OK >> GO TO 6.
NG >> Repair harness and connector between ESP/TCS/ABS control unit and wheel sensor.
6. CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1. Connect wheel sensor and ESP/TCS/ABS control unit connec-
tors.
2. Turn ignition switch ON and check voltage between power sup-
ply terminal and ground.
OK or NG
OK >> Replace wheel sensor.
NG >> Replace ESP/TCS/ABS control unit.
SFIA2200E
Power supply circuit Signal circuit Ground circuit
WheelESP/TCS/ABS
control unit
(harness con-
nector E122)Wheel sensor
(harness con-
nector)ESP/TCS/ABS
control unit
(harness con-
nector E122)Wheel sensor
(harness con-
nector)ESP/TCS/ABS con-
trol unit (harness
connector E122)
(Signal)Ground
Front RH (E17) 16 (W) 1 (W) 15 (B) 2 (B) 15 (B), 16 (W) —
Front LH (E59) 10 (L/W) 1 (L/W) 8 (L/Y) 2 (L/Y) 8 (L/Y), 10 (L/W) —
Rear RH (B130) 12 (B/W) 1 (B/W) 11 (L/R) 2 (L/R) 11 (L/R), 12 (B/W) —
Rear LH (B126) 14 (BR) 1 (BR) 13 (BR/W) 2 (BR/W) 13 (BR/W), 14 (BR) —
Power supply circuit : Continuity should exist.
Signal circuit : Continuity should exist.
Ground circuit : Continuity should not exist.
Vo l ta g e
Front RH 1 (W) - Ground : 8V or more
Front LH 1 (L/W) - Ground : 8V or more
Rear RH 1 (B/W) - Ground : 8V or more
Rear LH 1 (BR) - Ground : 8V or more
SFIA2016E

TROUBLE DIAGNOSIS
BRC-91
[ESP/TCS/ABS]
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Inspection 2 Engine SystemEFS001AC
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Are any items other than above indicated in the self-diagnosis results?
YES >> Repair or replace affected items.
NO >> GO TO 2.
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Perform the ECM self-diagnosis and repair or replace affected items, then perform the ECM self-diagno-
sis again.
2. Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is inspection result OK?
YES >> Inspection end
NO >> Repair or replace affected items. Perform the self-diagnosis again.
Inspection 3 ESP/TCS/ABS Control Unit SystemEFS001AD
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Are any items other than
“CONTROLLER FAILURE” indicated in the self-diagnosis results?
YES >> Repair or replace affected items. Perform the self-diagnosis again.
NO >> Replace ESP/TCS/ABS control unit and perform ESP/TCS/ABS control unit self-diagnosis again.
Inspection 4 Pressure Sensor and the Circuit between Pressure Sensor and
ESP/TCS/ABS Control Unit.
EFS001AE
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Is
“ PRESS SEN CIRCUIT” indicated in the self-diagnosis results?
>> GO TO 2.
Self-diagnosis results
ENGINE SYSTEM 1
ENGINE SYSTEM 2
ENGINE SYSTEM 3
ENGINE SYSTEM 4
ENGINE SYSTEM 6
Self-diagnosis results
CONTROLLER FAILURE
Self-diagnosis results
PRESS SEN CIRCUIT

BRC-92
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors of pressure sensor and ESP/TCS/ABS control unit, and connect them again cor-
rectly.
2. Perform ESP/TCS/ABS control unit self-diagnosis again.
Is inspection result OK?
YES >> Repair or replace the poorly connected connector, then perform the self-diagnosis again.
NO >> GO TO 3.
3. PRESSURE SENSOR CIRCUIT INSPECTION
1. Disconnect connectors of pressure sensor and ESP/TCS/
ABS control unit.
2. Check for continuity between ESP/TCS/ABS control unit and
pressure sensor (harness connector E67).
Is inspection result OK?
YES >> GO TO 4.
NO >> Repair or replace the disconnected harness.
4. PRESSURE SENSOR INSPECTION
Check the “PRESS SENSOR” value in “DATA MONITOR”.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> Pressure sensor malfunction. Replace ESP actuator (with the pressure sensor).
SFIA2192E
ESP/TCS/ABS control unit
(harness connector E122)Pressure sensor
(ESP actuator harness connector E67)Continuity
69 (P/L) 30 (P/L) Yes
68 (L/OR) 31 (L/OR) Yes
67 (G/B) 32 (G/B) Yes
Condition PRESS SENSOR (Data monitor)
Brake pedal depressed Positive value
Brake pedal released Approx. 0 bar