Nissan Leaf. Instruction — part 327
BRC-98
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1116 STOP LAMP SWITCH
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
3. Set the vehicle to READY.
CAUTION:
Stop the vehicle.
4. Select “ABS”, “Data Monitor” and “STOP LAMP SW” according to this order. Check that data monitor dis-
plays “On” or “Off” when brake pedal is depress or release. Refer to
.
5. Select “ABS”, “Data Monitor” and “PRESS SENSOR” according to this order. Check that data monitor dis-
plays “5 bar” or less when brake pedal is depress. Refer to
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 7.
7.
CHECK STOP LAMP SWITCH
Check the stop lamp switch. Refer to
BRC-100, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace stop lamp switch. Refer to
BR-500, "Removal and Installation"
. GO TO 8.
8.
CHECK DATA MONITOR (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. Set the vehicle to READY.
CAUTION:
Stop the vehicle.
4. Select “ABS”, “Data Monitor” and “STOP LAMP SW” according to this order. Check that data monitor dis-
plays “On” or “Off” when brake pedal is depress or release. Refer to
.
5. Select “ABS”, “Data Monitor” and “PRESS SENSOR” according to this order. Check that data monitor dis-
plays “5 bar” or less when brake pedal is depress. Refer to
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 9.
9.
CHECK CONNECTOR AND TERMINAL
1. Turn the power switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Check the ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.
4. Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with
harness connector.
5. Disconnect stop lamp switch harness connector.
6. Check the stop lamp switch harness connector for disconnection or looseness.
7. Check the stop lamp switch pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace error-detected parts. GO TO 10.
10.
CHECK DATA MONITOR (4)
With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect stop lamp switch harness connector.
3. Erase “Self Diagnostic Result” of “ABS”.
4. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
5. Set the vehicle to READY.
CAUTION:
C1116 STOP LAMP SWITCH
BRC-99
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
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BRC
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Stop the vehicle.
6. Select “ABS”, “Data Monitor” and “STOP LAMP SW” according to this order. Check that data monitor dis-
plays “On” or “Off” when brake pedal is depress or release. Refer to
7. Select “ABS”, “Data Monitor” and “PRESS SENSOR” according to this order. Check that data monitor dis-
plays “5 bar” or less when brake pedal is depress. Refer to
.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> GO TO 11.
11.
CHECK STOP LAMP SWITCH CIRCUIT (1)
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.
5. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
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. GO TO 12.
12.
CHECK STOP LAMP SWITCH CIRCUIT (2)
1. Turn the power switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity between ABS actuator and electric unit (control unit) harness connector and stop
lamp switch harness connector.
4. Check the continuity between ABS actuator and electric unit (control unit) harness connector and the
ground.
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. GO TO 13.
13.
CHECK DATA MONITOR (5)
With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
ABS actuator and electric unit (control unit)
—
Condition
Voltage
(Approx.)
Connector
Terminal
E35
8
Ground
Brake pedal depressed
Battery voltage
Brake pedal not depressed
0 V
ABS actuator and electric unit (control unit)
—
Condition
Voltage
(Approx.)
Connector
Terminal
E35
8
Ground
Brake pedal depressed
Battery voltage
Brake pedal not depressed
0 V
ABS actuator and electric unit (control unit)
Stop lamp switch
Continuity
Connector
Terminal
Connector
Terminal
E35
8
E102
2
Yes
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E35
8
Ground
No
BRC-100
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1116 STOP LAMP SWITCH
2. Erase “Self Diagnostic Result” of “ABS”.
3. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
4. Set the vehicle to READY.
CAUTION:
Stop the vehicle.
5. Select “ABS”, “Data Monitor” and “STOP LAMP SW” according to this order. Check that data monitor dis-
plays “On” or “Off” when brake pedal is depress or release. Refer to
.
6. Select “ABS”, “Data Monitor” and “PRESS SENSOR” according to this order. Check that data monitor dis-
plays “5 bar” or less when brake pedal is depress. Refer to
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-162, "Removal and Installa-
.
Component Inspection
INFOID:0000000010120070
1.
CHECK STOP LAMP SWITCH
1. Turn the power switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity when stop lamp switch is operated.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace stop lamp switch. Refer to
BR-500, "Removal and Installation"
.
Stop lamp switch
Condition
Continuity
Terminal
1 – 2
When stop lamp switch is released
(When brake pedal is depressed)
Yes
When stop lamp switch is pressed
(When brake pedal is released)
No
C1120, C1122, C1124, C1126 ABS IN VALVE SYSTEM
BRC-101
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
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C1120, C1122, C1124, C1126 ABS IN VALVE SYSTEM
DTC Logic
INFOID:0000000010120071
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 “C1120”, “C1122”, “C1124” or “C1126” detected?
YES
>> Proceed to
BRC-101, "Diagnosis Procedure"
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120072
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 DIAGNOSIS
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”.
DTC
Display Item
Malfunction detected condition
Possible causes
C1120
FR LH IN ABS SOL
When a malfunction is detected in front LH ABS IN
valve.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• Fusible link
• 12V battery power supply sys-
tem
C1122
FR RH IN ABS SOL
When a malfunction is detected in front RH ABS IN
valve.
C1124
RR LH IN ABS SOL
When a malfunction is detected in rear LH ABS IN
valve.
C1126
RR RH IN ABS SOL
When a malfunction is detected in rear RH ABS IN
valve.
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