Infiniti FX35, FX50 (S51). Manual - part 264
C1197 VACUUM SENSOR
BRC-87
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
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BRC
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C1197 VACUUM SENSOR
Description
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The vacuum sensor converts the vacuum pressure to an electric signal and transmits it to the ABS actuator
and electric unit (control unit).
DTC Logic
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DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch ON.
2.
Perform self-diagnosis for “ABS” with CONSULT-III.
Is DTC “C1197” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
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1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Disconnect vacuum sensor harness connector.
4.
Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK VACUUM SENSOR HARNESS
Check the continuity between vacuum sensor harness connector and ABS actuator and electric unit harness
connector.
Is the inspection result normal?
YES
>> Replace brake booster. Refer to
.
NO
>> Repair or replace error-detected parts.
Special Repair Requirement
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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-9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
DTC
Display item
Malfunction detected condition
Possible cause
C1197
VACUUM SENSOR
When vacuum sensor becomes blocked.
• Harness or connector
• Vacuum sensor
Vacuum sensor
ABS actuator and electric unit
(control unit)
Continuity
Connector
Terminal
Connector
Terminal
E49
1
E41
12
Existed
2
15
3
19