Nissan Leaf. Instruction — part 331
BRC-114
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT
2. Check the steering angle sensor system. Refer to
BRC-110, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-162, "Removal and Installa-
.
NO
>> Repair or replace error-detected parts.
C1155 BRAKE FLUID LEVEL SWITCH
BRC-115
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
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BRC
N
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C1155 BRAKE FLUID LEVEL SWITCH
DTC Logic
INFOID:0000000010120083
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn power 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 power switch OFF
→ ON.
CAUTION:
• Be sure to wait of 10 seconds after turning power switch OFF or ON.
• Set the vehicle to READY.
2. Repeat step 1 two or more times.
3. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1155” detected?
YES
>> Proceed to
BRC-115, "Diagnosis Procedure"
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120084
Regarding Wiring Diagram information. Refer to
1.
CHECK CONNECTOR
1. Turn the power switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Disconnect brake fluid level switch harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts. GO TO 2.
2.
PERFORM SELF DIAGNOSTIC (1)
With CONSULT
1. Turn the power switch OFF
→ ON.
CAUTION:
• Be sure to wait of 10 seconds after turning power switch OFF or ON.
• Set the vehicle to READY.
2. Repeat step 1 two or more times.
3. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1155” detected?
YES
>> GO TO 3.
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.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• Brake fluid level switch
• Combination meter
BRC-116
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1155 BRAKE FLUID LEVEL SWITCH
NO
>> Inspection End.
3.
CHECK BRAKE FLUID LEVEL
1. Turn the power switch OFF.
2. Check the brake fluid level. Refer to
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Refill brake fluid. Refer to
. GO TO 4.
4.
PERFORM SELF DIAGNOSTIC (2)
With CONSULT
1. Erase “Self Diagnosis Result” for “ABS”.
2. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
3. Turn the power switch OFF
→ ON.
CAUTION:
• Be sure to wait of 10 seconds after turning power switch OFF or ON.
• Set the vehicle to READY.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1155” detected?
YES
>> GO TO 5.
NO
>> Inspection End.
5.
CHECK BRAKE FLUID LEVEL SWITCH
Check the brake fluid level switch. Refer to
BRC-118, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace electrically-driven intelligent brake unit. Refer to
BR-510, "Removal and installation"
. GO
TO 6.
6.
PERFORM SELF DIAGNOSTIC (3)
With CONSULT
1. Erase “Self Diagnostic Result” of “ABS”.
2. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
3. Turn the power switch OFF
→ ON.
CAUTION:
• Be sure to wait of 10 seconds after turning power switch OFF or ON.
• Set the vehicle to READY.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1155” detected?
YES
>> GO TO 7.
NO
>> Inspection End.
7.
CHECK CONNECTOR AND TERMINAL
1. Turn the power switch OFF.
2. Disconnect combination meter harness connector.
3. Check the combination meter harness connector for disconnection or looseness.
4. Check the combination meter pin terminals for damage or loose connection with harness connector.
5. Disconnect brake fluid level switch harness connector.
6. Check the brake fluid level switch harness connector for disconnection or looseness.
7. Check the brake fluid level switch pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 9.
C1155 BRAKE FLUID LEVEL SWITCH
BRC-117
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
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BRC
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NO
>> Repair or replace error-detected parts. GO TO 8.
8.
PERFORM SELF DIAGNOSTIC (4)
With CONSULT
1. Erase “Self Diagnostic Result” of “ABS”.
2. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
3. Turn the power switch OFF
→ ON.
CAUTION:
• Be sure to wait of 10 seconds after turning power switch OFF or ON.
• Set the vehicle to READY.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1155” detected?
YES
>> GO TO 9.
NO
>> Inspection End.
9.
CHECK BRAKE FLUID LEVEL SWITCH HARNESS
1. Turn the power switch OFF.
2. Disconnect brake fluid level switch harness connector.
3. Disconnect combination meter harness connector.
4. Check the continuity between brake fluid level switch harness connector and combination meter harness
connector.
5. Check the continuity between brake fluid level switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace error-detected parts. GO TO 8.
10.
CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check the continuity between brake fluid level switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace error-detected parts. GO TO 11.
11.
CHECK COMBINATION METER
Check the combination meter. Refer to
MWI-49, "CONSULT Function (METER/M&A)"
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-162, "Removal and Installa-
.
NO
>> Repair or replace combination meter. Refer to
MWI-102, "Removal and Installation"
.
Brake fluid level switch
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
E37
1
M34
25
Yes
Brake fluid level switch
—
Continuity
Connector
Terminal
E37
1
Ground
No
Brake fluid level switch
—
Continuity
Connector
Terminal
E37
2
Ground
Yes
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