Nissan Sentra B18 (2020-2025) Service Manual: Brake Pedal Position Switch
Component Function Check
-
CHECK BRAKE PEDAL POSITION SWITCH FUNCTION
With CONSULT-
Turn ignition switch ON.
-
Select “BRAKE SW” in “DATA MONITOR” mode of “ENGINE” with CONSULT.
-
Check “BRAKE SW” indication as per the following conditions.
Monitor item
Condition
Indication
BRAKE SW 1
Brake pedal
Slightly depressed
OFF
Fully released
ON
Without CONSULT-
Turn ignition switch ON.
-
Check the voltage between ECM harness connector terminals as per the following.
ECM
Condition
Voltage
(Approx.)
Connector
+
–
Terminal
E16
150
162
Brake pedal
Slightly depressed
0 V
Fully released
Battery voltage
Is the inspection result normal?
YES >>INSPECTION END
NO >>Refer to Diagnosis Procedure.
-
Diagnosis Procedure
-
CHECK BRAKE PEDAL POSITION SWITCH CIRCUIT
With CONSULT-
Turn ignition switch ON.
-
Select “BRAKE SW 1” in “DATA MONITOR” mode of “ENGINE” with CONSULT.
-
Check “BRAKE SW 1” indication as per the following conditions.
Monitor item
Condition
Indication
BRAKE SW 1
Brake pedal
Slightly depressed
OFF
Fully released
ON
Without CONSULT-
Turn ignition switch ON.
-
Check the voltage between ECM harness connector terminals as per the following.
ECM
Condition
Voltage
(Approx.)
Connector
+
–
Terminal
E16
150
162
Brake pedal
Slightly depressed
0 V
Fully released
Battery voltage
Is the inspection result normal?
YES >>Check intermittent incident. Refer to Intermittent Incident.
NO >>GO TO 2.
-
-
CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
-
Turn ignition switch ON.
-
Disconnect brake pedal position switch harness connector.
-
Turn ignition switch ON.
-
Check the voltage between brake pedal position switch harness connector and ground.
+
−
Voltage
Brake pedal position switch
Connector
Terminal
E84
1
Ground
Battery voltage
Is the inspection result normal?
YES >>GO TO 3.
NO >>Perform trouble diagnosis for power supply circuit.
-
-
CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT
-
Disconnect ECM harness connector.
-
Check the continuity between brake pedal position switch harness connector and ECM harness connector.
Brake pedal position switch
ECM
Continuity
Connector
Terminal
Connector
Terminal
E84
2
E16
150
Existed
-
Also check harness for short to ground and to power.
Is the inspection result normal?
YES >>GO TO 4.
NO >>Repair or replace malfunctioning part.
-
-
CHECK BRAKE PEDAL POSITION SWITCH
Check brake pedal position switch. Refer to Component Inspection.
Is the inspection result normal?
YES >>Check intermittent incident. Refer to Intermittent Incident.
NO >>Replace brake pedal position switch. Refer to Removal and Installation.
Component Inspection
-
CHECK BRAKE PEDAL POSITION SWITCH-1
-
Turn ignition switch OFF.
-
Disconnect brake pedal position harness connector.
-
Check the continuity between brake pedal position switch terminals as per the following conditions.
Brake pedal position switch
Condition
Continuity
Terminal
1
2
Brake pedal
Fully released
Existed
Slightly depressed
Not existed
Is the inspection result normal?
YES >>INSPECTION END
NO >>GO TO 2.
-
-
CHECK BRAKE PEDAL POSITION SWITCH-2
-
Adjust brake pedal position switch installation. Refer to Removal and Installation.
-
Check the continuity between brake pedal position switch terminals as per the following conditions.
Brake pedal position switch
Condition
Continuity
Terminal
1
2
Brake pedal
Fully released
Existed
Slightly depressed
Not existed
Is the inspection result normal?
YES >>INSPECTION END
NO >>Replace brake pedal position switch. Refer to Removal and Installation.
-
Ascd Steering Switch
Component Inspection
Component Inspection
CHECK ASCD STEERING SWITCH
Turn ignition switch OFF.
Disconnect combination switch (spi ...
Intake/exhaust Camshaft Position Sensor
Component Inspection
Component Inspection
CHECK CAMSHAFT POSITION SENSOR
(PHASE)-1
Turn ignition switch OFF.
Loosen the f ...
Other materials:
Diagnosis description : permanent diagnostic
trouble code (permanent DTC)
Permanent DTC is defined in SAE J1979/ISO 15031-5 Service $0A.
ECM stores a DTC issuing a command of turning on MIL as a permanent DTC and
keeps storing the DTC as
a permanent DTC until ECM judges that there is no presence of malfunction.
Permanent DTCs cannot be erased by using the erase f ...
Diagnosis Procedure
Diagnosis Procedure
CHECK POWER SUPPLY OF COMBINATION
METER
Check power supply of combination meter. Refer to
Diagnosis Procedure (Type A) or Diagnosis Procedure (Type B).
Is the inspection result normal?
YES ...
Corrosion protection
Description
To provide improved corrosion prevention, the following anti-corrosive
measures have been implemented in
NISSAN production plants. When repairing or replacing body panels, it is
necessary to use the same anti-corrosive
measures.
Anti-Corrosive Wax
To improve repairability and co ...
