Nissan Quest E52. Instruction — part 249
C1155 BRAKE FLUID LEVEL SWITCH
BRC-89
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C1155 BRAKE FLUID LEVEL SWITCH
DTC Logic
INFOID:0000000009651407
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn 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 “C1155” detected?
YES
>> Proceed to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009651408
1.
CHECK BRAKE FLUID LEVEL
1.
Turn the ignition switch OFF.
2.
Check brake fluid level. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Refill brake fluid. Refer to
. GO TO 2.
2.
PERFORM SELF-DIAGNOSIS (1)
With CONSULT
1.
Erase self-diagnosis result for “ABS”.
2.
Turn the ignition switch OFF, and wait 10 seconds or more.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Perform self-diagnosis for “ABS”.
Is DTC “C1155” detected?
YES
>> GO TO 3.
NO
>> INSPECTION END
3.
CHECK BRAKE FLUID LEVEL SWITCH
Check brake fluids level switch. Refer to
BRC-91, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace reservoir tank. Refer to
BR-27, "Removal and Installation"
. GO TO 4.
4.
PERFORM SELF-DIAGNOSIS (2)
DTC
Display Item
Malfunction detected condition
Possible causes
C1155
BR FLUID LEVEL LOW
• When brake fluid level low signal is detected.
• When an open circuit is detected in brake fluid level
switch circuit.
• When an short circuit is detected in brake fluid level
switch circuit.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• Brake fluid level switch
• Combination meter
BRC-90
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1155 BRAKE FLUID LEVEL SWITCH
With CONSULT
1.
Erase self-diagnosis result for “ABS”.
2.
Turn the ignition switch OFF, and wait 10 seconds or more.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Perform self-diagnosis for “ABS”.
Is DTC “C1155” detected?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
CHECK CONNECTOR AND TERMINAL
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Check ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
4.
Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with har-
ness connector.
5.
Disconnect brake fluid level switch harness connector.
6.
Check brake fluid level switch harness connector for disconnection or looseness.
7.
Check brake fluid level switch pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace error-detected parts. GO TO 6.
6.
PERFORM SELF-DIAGNOSIS (3)
With CONSULT
1.
Connect brake fluid level switch harness connector.
2.
Connect combination meter harness connector.
3.
Erase self-diagnosis result for “ABS”.
4.
Turn the ignition switch OFF, and wait 10 seconds or more.
5.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
6.
Perform self-diagnosis for “ABS”.
Is DTC “C1155” detected?
YES
>> INSPECTION END
NO
>> GO TO 7.
7.
CHECK BRAKE FLUID LEVEL SWITCH HARNESS
1.
Turn the ignition switch OFF.
2.
Disconnect brake fluid level switch harness connector.
3.
Disconnect combination meter harness connector.
4.
Disconnect ABS actuator and electric unit (control unit) harness connector.
5.
Check continuity between brake fluid level switch harness connector and combination meter harness con-
nector.
6.
Check continuity between brake fluid level switch harness connector and ABS actuator and electric unit
(control unit) harness connector.
Brake fluid level switch
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
E37
1
M34
27
Existed
Brake fluid level switch
ABS actuator and electric
unit (control unit)
Continuity
Connector
Terminal
Connector
Terminal
E37
1
E36
7
Existed
C1155 BRAKE FLUID LEVEL SWITCH
BRC-91
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
7.
Check continuity between brake fluid level switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace error-detected parts. GO TO 8.
8.
CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check continuity between brake fluid level switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace error-detected parts. GO TO 9.
9.
CHECK COMBINATION METER
Check combination meter. Refer to
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-123, "Removal and Installa-
.
NO
>> Repair or replace combination meter. Refer to
MWI-93, "Removal and Installation"
Component Inspection
INFOID:0000000009651409
1.
CHECK BRAKE FLUID LEVEL SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect brake fluid level switch harness connector.
3.
Check continuity between terminals of brake fluid level switch.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace reservoir tank. Refer to
BR-27, "Removal and Installation"
.
Brake fluid level switch
—
Continuity
Connector
Terminal
E37
1
Ground
Not existed
Brake fluid level switch
—
Continuity
Connector
Terminal
E37
2
Ground
Existed
Brake fluid level switch
Condition
Continuity
Terminal
1 – 2
When brake fluid level in reservoir tank is within the specified level.
Not existed
When brake fluid level in reservoir tank is less than the specified
level.
Existed
BRC-92
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1161 INCOMPLETE SIDE G SENSOR CALIBRATION
C1161 INCOMPLETE SIDE G SENSOR CALIBRATION
DTC Logic
INFOID:0000000009651410
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn 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 “C1161” detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009651411
1.
CHECK YAW RATE/SIDE G SENSOR
Replace ABS actuator and electric unit (control unit) even if other display than “C1161” is displayed in self-
diagnosis for “ABS”.
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-123, "Removal and Installa-
.
DTC
Display item
Malfunction detected condition
Possible cause
C1161
SIDE G SEN SET
When there is an internal malfunction in the ABS actuator
and electric unit (control unit).
ABS actuator and electric unit
(control unit)
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