Nissan Sentra manuals

Nissan Sentra Service Manual: Parking brake switch signal circuit

Component function check

1.Check parking brake switch operation

Check that brake warning lamp in combination meter turns on/off when parking brake is actuated.

Is the inspection result normal? Yes >> inspection end.

No >> proceed to diagnosis procedure. Refer to mwi-60, "diagnosis procedure".

Diagnosis procedure

Regarding Wiring Diagram information, refer to MWI-28, "Wiring Diagram".

1.Connector inspection

  1. Turn ignition switch off.
  2. Disconnect combination meter and parking brake switch connectors.
  3. Check connectors and terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal? Yes >> go to 2 no >> repair or replace as necessary.

2.Check parking brake switch

Check parking brake switch. Refer to mwi-61, "component inspection".

Is the inspection result normal? Yes >> go to 3.

No >> replace parking brake switch. Refer to pb-7, "exploded view".

3.Check parking brake switch signal

With consult


  1. Connect combination meter connector and parking brake switch connectors.
  2. Turn ignition switch on.
  3. In “DATA MONITOR” select “PARK BRAKE SW” and check parking brake switch signal.

Is the inspection result normal?


Is the inspection result normal? Yes >> refer to mwi-45, "work flow".

No >> go to 4.

4.Check parking brake switch circuit

  1. Turn ignition switch off.
  2. Disconnect combination meter and parking brake switch connectors.
  3. Check continuity between combination meter connector M24 terminal 10 and parking brake switch connector M130 terminal 1.


  1. Check continuity between combination meter connector and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> replace combination meter. Refer to mwi-77, "removal and installation".

No >> repair or replace malfunctioning components.

Component inspection

1.Check parking brake switch

  1. Turn ignition switch off.
  2. Disconnect parking brake switch connector.
  3. Check continuity between parking brake switch terminal 1 and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> inspection end.

No >> replace parking brake switch. Refer to pb-7, "exploded view".

Fuel level sensor signal circuit
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Ambient sensor signal circuit
Description It detects outside air temperature and converts it into a resistance value which is then input into the combination meter. Diagnosis Procedure Regarding wiring diagram information, ...

Other materials:

Brake master cylinder
Inspection Check for brake fluid leakage at the following areas: Master cylinder mounting face Reservoir tank mounting face Brake tube and brake tube connections Brake hose and brake hose connections If any brake fluid leakage is found, repair as necessary. On Board Inspection LEAK ...

Front wiper and washer system
Component Parts Location BCM (view under instrument panel, left side of vehicle) Combination meter IPDM E/R (view with air inlet duct removed) Combination switch (wiper and washer switch) Front wiper motor (with wiper cowl cover removed) Front washer motor (with front bum ...

Power supply and ground circuit
Bcm (body control system) (with intelligent key system) BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis Procedure Regarding Wiring Diagram information, refer to BCS-51, "Wiring Diagram". 1.CHECK FUSES AND FUSIBLE LINK Check that the following fuses and fusible link ...

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