Nissan Murano: Dtc/circuit Diagnosis / Brake Pedal Position Switch

Nissan Murano (Z52) 2015-2024 Service Manual / Engine / Engine Control System :: Vq35de / Dtc/circuit Diagnosis / Brake Pedal Position Switch

Component Function Check

CHECK BRAKE PEDAL POSITION SWITCH FUNCTION

With CONSULT

  1. Turn ignition switch ON.

  2. Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT.

  3. Check “BRAKE SW1” indication under the following conditions.

    Monitor item Condition Indication
    BRAKE SW1 Brake pedal Slightly depressed OFF
    Fully released ON

Without CONSULT

  1. Turn ignition switch ON.

  2. Check the voltage between ECM harness connector terminals.

    ECM Condition Voltage
    Connector + –
    Terminal
    E32 140 152 Brake pedal Slightly depressed Approx. 0 V
    Fully released Battery voltage

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Proceed to Diagnosis Procedure.

Diagnosis Procedure

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect brake pedal position switch harness connector.

  3. Turn ignition switch ON.

  4. Check the voltage between brake pedal position switch harness connector and ground.

    Brake pedal position switch Ground Voltage
    Connector Terminal
    E72 1 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect fuse block (J/B) harness connector.

  3. Check the continuity between brake pedal position switch harness connector and fuse block (J/B) harness connector.

Brake pedal position switch Fuse block (J/B) Continuity
Connector Terminal Connector Terminal
E72 1 M68 2R Existed

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

  1. Turn ignition switch OFF.

  2. Disconnect ECM harness connector.

  3. Check the continuity between brake pedal position switch harness connector and ECM harness connector.

    Brake pedal position switch ECM Continuity
    Connector Terminal Connector Terminal
    E72 2 E32 140 Existed

  4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair open circuit, short to ground or short to power in harness or connectors.

CHECK BRAKE PEDAL POSITION SWITCH

Check brake pedal position switch. Refer to Component Inspection (Brake Pedal Position Switch).

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 (Brake Pedal Position Switch)

CHECK BRAKE PEDAL POSITION SWITCH-I

  1. Turn ignition switch OFF.

  2. Disconnect BRAKE pedal position switch harness connector.

  3. Check the continuity between BRAKE pedal position switch terminals under the following conditions.

    Terminals Condition Continuity
    1 and 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-II

  1. Adjust BRAKE pedal position switch installation. Refer to Adjustment.

  2. Check the continuity between BRAKE pedal position switch terminals under the following conditions.

    Terminals Condition Continuity
    1 and 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.

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    Other information:

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