Nissan Leaf. Instruction — part 322
BRC-78
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1105, C1106, C1107, C1108 WHEEL SENSOR
• Physical damage
• Contamination
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace as necessary.
4.
CHECK SENSOR ROTOR
Check sensor rotor for the following:
• Contamination
• Physical damage (missing teeth, cracks, etc.)
• Foreign material
• Looseness
Is the inspection result normal?
YES
>> Replace the wheel sensor. Refer to
BRC-158, "FRONT WHEEL SENSOR : Removal and Installa-
or
BRC-159, "REAR WHEEL SENSOR : Removal and Installation"
. Then, GO TO 5.
NO
>> Repair or replace as necessary.
5.
CONFIRM REPAIR
With CONSULT
1. Clear all DTCs.
2. Perform DTC confirmation procedure. Refer to
.
Does DTC C1105, C1106, C1107 or C1108 reset?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-162, "Removal and Installa-
.
NO
>> Inspection End.
C1109 POWER AND GROUND SYSTEM
BRC-79
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
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G
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A
B
BRC
N
O
P
C1109 POWER AND GROUND SYSTEM
DTC Logic
INFOID:0000000010120058
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 “C1109” detected?
YES
>> Proceed to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120059
Regarding Wiring Diagram information. Refer to
1.
CHECK CONNECTOR
1. Turn the power switch OFF.
2. 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, securely lock the connector, and GO TO 2.
2.
PERFORM SELF DIAGNOSTIC
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 “C1109” detected?
YES
>> GO TO 3.
DTC
Display Item
Malfunction detected condition
Possible causes
C1109
BATTERY VOLTAGE [ABNOR-
MAL]
When power switch ON power supply voltage is in
following state.
• Power switch ON power supply voltage: 10 V
≥
Power switch ON power supply voltage.
• Power switch ON power supply voltage: 16 V
≤
Power switch ON power supply voltage.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• Fuse
• Power switch ON power supply
system
• 12V battery
BRC-80
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1109 POWER AND GROUND SYSTEM
NO
>> Inspection End.
3.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SWITCH ON POWER SUP-
PLY
1. Turn the power switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
4. Turn the power switch ON.
CAUTION:
Never set the vehicle to READY.
5. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SWITCH ON POWER SUP-
PLY CIRCUIT
1. Turn the power switch OFF.
2. Check the 10A fuse (#4).
3. Check the continuity and short circuit between ABS actuator and electric unit (control unit) harness con-
nector terminal (16) and 10A fuse (#4).
Is the inspection result normal?
YES
>> Perform trouble diagnosis for power switch ON power supply. Refer to
NO
>> Repair or replace error-detected parts.
5.
CHECK TERMINAL
Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with har-
ness connector.
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.
6.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
1. Turn the power switch OFF.
2. Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace error-detected parts.
ABS actuator and electric unit (control unit)
—
Voltage
(Approx.)
Connector
Terminal
E35
16
Ground
0 V
ABS actuator and electric unit (control unit)
—
Voltage
(Approx.)
Connector
Terminal
E35
16
Ground
Battery voltage
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E35
3
Ground
Yes
4
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-81
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
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J
K
L
M
A
B
BRC
N
O
P
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Logic
INFOID:0000000010120060
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 “C1110” detected?
YES
>> Proceed to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120061
1.
CHECK SELF DIAGNOSTIC RESULTS
Replace ABS actuator and electric unit (control unit) even if other display than “C1110” is displayed in “Self-
Diagnosis” of “ABS”.
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-162, "Removal and Installa-
.
DTC
Display Item
Malfunction detected condition
Possible causes
C1110
CONTROLLER FAILURE
When there is an internal malfunction in the ABS ac-
tuator and electric unit (control unit).
ABS actuator and electric unit
(control unit)
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