2016 NISSAN NOTE light

EC-384
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P1572 ASCD BRAKE SWITCH
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheel
s lifted in the shop or by driving the vehicle.
If a road test is expected to be easier , it is unnecessary to lift the vehicle.
2. Check DTC.
Is DTC detected?
YES >> Proceed to EC-388, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431594
1.CHECK OVERALL FUNCTION-I
With CONSULT
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONITOR” mode of “ENGINE” using CONSULT.
3. Check “BRAKE SW1” indication as per the following conditions.
Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK OVERALL FUNCTION-II
With CONSULT
Select “BRAKE SW2” and check indication as per the following conditions.
Without CONSULT
Check the voltage between ECM harness connector terminals as per the following conditions.
Vehicle speed More than 30 km/h (19 mph)
Selector lever Suitable position
Driving location Depress the brake pedal for more than five seconds so as
not to come off from the above-mentioned vehicle speed.
Monitor item
ConditionIndication
BRAKE SW1 Brake pedal Slightly depressed OFF
Fully released
ON
ECM ConditionVoltag e
(Approx.)
Connector +–
Te r m i n a l
E16 100 108 Brake pedal Slightly depressed
0 V
Fully released Battery voltage
Monitor item ConditionIndication
BRAKE SW2 Brake pedal Slightly depressed ON
Fully released
OFF
Revision: August 2015 2016 Versa Note

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P1572 ASCD BRAKE SWITCHEC-385
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-42, "Intermittent Incident".
NO >> GO TO 6.
3.CHECK ASCD BRAKE SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Perform the trouble diagnosis for power supply circuit.
4.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between ASCD brake switch harness connector and ECM harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK ASCD BRAKE SWITCH
Check the ASCD brake switch. Refer to EC-438, "
Component Inspection (ASCD Brake Switch)"
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace ASCD brake switch. Refer to BR-20, "
Exploded View".
6.CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Perform the trouble diagnosis for power supply circuit.
ECM
ConditionVo l ta g e
(Approx.)
Connector +–
Te r m i n a l
E16 99 108 Brake pedal Slightly depressed Battery voltage
Fully released
0 V
ASCD brake switch
GroundVoltage
Connector Terminal
E36 1Ground Battery voltage
ASCD brake switch ECM
Continuity
Connector Terminal Connector Terminal
E36 2E16 100 Existed
Stop lamp switch
GroundVoltage
Connector Terminal
E13 1Ground Battery voltage
Revision: August 2015 2016 Versa Note

cardiagn.com

EC-386
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P1572 ASCD BRAKE SWITCH
7.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check the continuity between stop lamp s witch harness connector and ECM harness connector.
3. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
8.CHECK STOP LAMP SWITCH
Check the stop lamp switch. Refer to EC-386, "
Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace stop lamp switch. Refer to BR-20, "
Exploded View".
Component Inspection (ASCD Brake Switch)INFOID:0000000012431595
1.CHECK ASCD BRAKE SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check the continuity between ASCD brake swit ch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK ASCD BRAKE SWITCH-II
1. Adjust ASCD brake switch installation. Refer to BR-9, "
Inspection and Adjustment".
2. Check the continuity between ASCD brake swit ch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace ASCD brake switch. Refer to BR-20, "
Exploded View".
Component Inspection (Stop Lamp Switch)INFOID:0000000012431596
1.CHECK STOP LAMP SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity between stop lamp switch terminals as per the following conditions.
Stop lamp switch ECM
Continuity
Connector Terminal Connector Terminal
E13 2E16 99 Existed
ASCD brake switch
Condition Continuity
Te r m i n a l s
1 2 Brake pedal Fully released
Existed
Slightly depressed Not existed
ASCD brake switch Condition Continuity
Te r m i n a l s
1 2 Brake pedal Fully released
Existed
Slightly depressed Not existed
Revision: August 2015 2016 Versa Note

cardiagn.com

P1572 ASCD BRAKE SWITCHEC-387
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-II
1. Adjust stop lamp switch installation. Refer to BR-21, "
Inspection and Adjustment".
2. Check the continuity between stop lamp switch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace stop lamp switch. Refer to BR-20, "
Exploded View".
Stop lamp switch
ConditionContinuity
Te r m i n a l s
1 2 Brake pedal Fully released Not existed
Slightly depressed Existed
Stop lamp switch
ConditionContinuity
Te r m i n a l s
1 2 Brake pedal Fully released Not existed
Slightly depressed Existed
Revision: August 2015
2016 Versa Note

cardiagn.com

EC-396
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P1805 BRAKE SWITCH
P1805 BRAKE SWITCH
DTC LogicINFOID:0000000012431608
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase DTC.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-396, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431609
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Check the stop lamp when depressing and releasing the brake pedal.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK STOP LAMP SWIT CH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• 10 A fuse (No. 30)
• Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
DTC No. Trouble diagnosis content DTC detecting condition Possible cause
P1805 Brake switch A brake switch signal is not sent to ECM
for extremely long time while the vehicle is
driving. • Harness or connectors
(Stop lamp switch circuit is open or shorted.)
• Stop lamp switch
Brake pedal Stop lamp
Fully released Not illuminated
Slightly depressed Illuminated
Sto p l am p s w it ch
Ground Voltage
Connector Terminal
E57 (M/T)
E13 (CVT) 1
Ground Battery voltage
Revision: August 2015 2016 Versa Note

cardiagn.com

P1805 BRAKE SWITCHEC-397
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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4.CHECK STOP LAMP SWITCH INPUT SI
GNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect stop lamp switch harness connector.
2. Disconnect ECM harness connector.
3. Check the continuity between ECM harness connector and stop lamp switch harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK STOP LAMP SWITCH
Refer to EC-397, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace brake pedal assembly. Refer to BR-20, "
Removal and Installation".
6.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000012431610
1.CHECK STOP LAMP SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-II
1. Adjust stop lamp switch installation. Refer to BR-21, "
Inspection and Adjustment".
2. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace brake pedal assembly. Refer to BR-20, "
Removal and Installation".
ECM Stop lamp switch
Continuity
Connector Terminal Connector Terminal
E16 99E57 (M/T)
E13 (CVT) 2 Existed
Terminals
ConditionContinuity
1 and 2 Brake pedal Fully released Not existed
Slightly depressed Existed
Terminals
ConditionContinuity
1 and 2 Brake pedal Fully released Not existed
Slightly depressed Existed
Revision: August 2015
2016 Versa Note

cardiagn.com

ASCD BRAKE SWITCHEC-437
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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ASCD BRAKE SWITCH
Component Function CheckINFOID:0000000012431635
1.CHECK ASCD BRAKE SWITCH FUNCTION
With CONSULT
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONI TOR” mode of “ENGINE” using CONSULT.
3. Check “BRAKE SW1” indication as per the following conditions.
Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-437, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012431636
1.CHECK ASCD BRAKE SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform the trouble diagnosis for power supply circuit.
2.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between ASCD brake switch harness connector and ECM harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
Monitor item ConditionIndication
BRAKE SW1 Brake pedal Slightly depressed OFF
Fully released
ON
ECM ConditionVo l ta g e
(Approx.)
Connector +–
Te r m i n a l
E16 100 108 Brake
pedalSlightly depressed 0 V
Fully released Battery voltage
ASCD brake switch
GroundVoltage
Connector Terminal
E36 1Ground Battery voltage
ASCD brake switch ECM
Continuity
Connector Terminal Connector Terminal
E36 2E16 100 Existed
Revision: August 2015 2016 Versa Note

cardiagn.com

EC-438
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
ASCD BRAKE SWITCH
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK ASCD BRAKE SWITCH
Check the ASCD brake switch. Refer to EC-438, "
Component Inspection (ASCD Brake Switch)"
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace ASCD brake switch. Refer to ACC-3, "
Exploded View".
Component Inspection (ASCD Brake Switch)INFOID:0000000012431637
1.CHECK ASCD BRAKE PEDAL POSITION SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check the continuity between ASCD brake swit ch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK ASCD BRAKE SWITCH-II
1. Adjust ASCD brake switch installation. Refer to BR-21, "
Inspection and Adjustment".
2. Check the continuity between ASCD brake swit ch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace ASCD brake switch. Refer to BR-20, "
Exploded View".
ASCD brake switch
Condition Continuity
Te r m i n a l
1 2 Brake pedal Fully released Existed
Slightly depressed Not existed
ASCD brake switch
Condition Continuity
Te r m i n a l
1 2 Brake pedal Fully released Existed
Slightly depressed Not existed
Revision: August 2015
2016 Versa Note

cardiagn.com