Nissan X-Trail 32. Instruction — part 178
BRC-178
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC (ESP)]
C1199 BRAKE BOOSTER
With CONSULT
1.
Connect the brake vacuum sensor harness connector.
2.
Connect the ABS actuator and electric unit (control unit) harness connector.
3.
Erase self-diagnosis result for “ABS”.
4.
Turn the ignition switch ON.
5.
Perform self-diagnosis for “ABS”.
Is DTC “C1199” detected?
YES
>> GO TO 9.
NO
>> INSPECTION END
9.
CHECK BRAKE VACUUM SENSOR CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the brake vacuum sensor harness connector.
3.
Disconnect the ABS actuator and electric unit (control unit) harness connector.
4.
Check the continuity between brake vacuum sensor harness connector and ABS actuator and electric unit
(control unit) harness connector.
5.
Check the continuity between brake vacuum sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace error-detected parts.
10.
REPLACE BRAKE VACUUM SENSOR
With CONSULT
1.
Connect the ABS actuator and electric unit (control unit) harness connector.
2.
Connect the brake vacuum sensor harness connector.
3.
Replace the brake vacuum sensor.
-
LHD models: Refer to
BR-36, "Removal and installation"
-
RHD models: Refer to
BR-99, "Removal and installation"
.
4.
Erase self-diagnosis result for “ABS”.
5.
Turn the ignition switch OFF, and wait 10 seconds or more.
6.
Start the engine.
7.
Perform self-diagnosis for “ABS”.
Is DTC “C1199” detected?
YES
>>
Replace the ABS actuator and electric unit (control unit).
• LHD models: Refer to
BRC-217, "LHD : Removal and Installation"
• RHD models: Refer to
BRC-220, "RHD : Removal and Installation"
.
NO
>> INSPECTION END
Brake vacuum sensor
ABS actuator and electric unit (control unit)
Continuity
Connector
Terminal
Connector
Terminal
E31
1
E36
12
Existed
2
24
3
5
Brake vacuum sensor
—
Continuity
Connector
Terminal
E31
1
Ground
Not existed
2
3
C119A VACUUM SENSOR
BRC-179
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC (ESP)]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C119A VACUUM SENSOR
DTC Description
INFOID:0000000010723714
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connector
• Brake vacuum sensor
• ABS actuator and electric unit (control unit)
FAIL-SAFE
Electrical vacuum assistance of brake booster is suspended.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT
1.
Turn the ignition switch OFF to ON.
2.
Perform self-diagnosis for “ABS”.
Is DTC “C119A” detected?
YES
>> Proceed to
BRC-179, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010723715
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Check the brake vacuum sensor harness connector for disconnection or looseness.
3.
Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts, and GO TO 2.
2.
PERFORM SELF-DIAGNOSIS
With CONSULT
1.
Connect the brake vacuum sensor harness connector.
2.
Connect the ABS actuator and electric unit (control unit) harness connector.
3.
Turn the ignition switch ON.
4.
Perform self-diagnosis for “ABS”.
Is DTC “C119A” detected?
YES
>> GO TO 3.
NO
>> INSPECTION END
3.
CHECK BRAKE VACUUM SENSOR POWER SUPPLY
1.
Turn the ignition switch OFF.
DTC
Display Item
(Trouble diagnosis content)
Malfunction detected condition
C119A
VACUUM SEN VOLT
(Vacuum sensor voltage)
When a malfunction is detected in supply power voltage of vacuum sensor.
BRC-180
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC (ESP)]
C119A VACUUM SENSOR
2.
Disconnect the brake vacuum sensor harness connector.
3.
Check the voltage between brake vacuum sensor harness connector and ground.
4.
Turn the ignition switch ON.
CAUTION:
Start the engine.
5.
Check the voltage between brake vacuum sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK BRAKE VACUUM SENSOR POWER SUPPLY CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the ABS actuator and electric unit (control unit) harness connector.
3.
Check the continuity between brake vacuum sensor harness connector and ABS actuator and electric unit
(control unit) harness connector.
4.
Check the continuity between brake vacuum sensor harness connector and ground.
Is the inspection result normal?
YES
>> Check the ABS actuator and electric unit (control unit) power supply system. Refer to
.
NO
>> Repair or replace error-detected parts.
5.
CHECK BRAKE VACUUM SENSOR GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Check the continuity between brake vacuum sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace error-detected parts.
6.
CHECK TERMINAL
1.
Check the vacuum sensor pin terminals for damage or loose connection with harness connector.
2.
Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with
harness connector.
Brake vacuum sensor
—
Voltage
Connector
Terminal
E31
3
Ground
Approx. 0 V
Brake vacuum sensor
—
Voltage
Connector
Terminal
E31
3
Ground
4.75
−
5.25 V
Brake vacuum sensor
ABS actuator and electric unit (control unit)
Continuity
Connector
Terminal
Connector
Terminal
E31
3
E36
5
Existed
Brake vacuum sensor
—
Continuity
Connector
Terminal
E31
3
Ground
Not existed
Brake vacuum sensor
—
Continuity
Connector
Terminal
E31
2
Ground
Not existed
C119A VACUUM SENSOR
BRC-181
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC (ESP)]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>>
Replace the ABS actuator and electric unit (control unit).
BRC-217, "LHD : Removal and Installation"
• RHD models: Refer to
BRC-220, "RHD : Removal and Installation"
.
NO
>> Repair or replace error-detected parts.
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