Nissan Murano: Dtc/circuit Diagnosis / Vdc Off Switch

Nissan Murano (Z52) 2015-2024 Service Manual / Brakes / Brake Control System :: Vdc/tcs/abs / Dtc/circuit Diagnosis / Vdc Off Switch

Component Function Check

CHECK VDC OFF SWITCH OPERATION

Check that VDC OFF indicator lamp in combination meter turns ON/OFF when VDC OFF switch is operated.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Proceed to Diagnosis Procedure.

Diagnosis Procedure

CHECK VDC OFF SWITCH CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect ABS actuator and electric unit (control unit) harness connector.

  3. Disconnect VDC OFF switch harness connector.

  4. Check the continuity between ABS actuator and electric unit (control unit) harness connector and VDC OFF switch harness connector.

    ABS actuator and electric unit (control unit) VDC OFF switch Continuity
    Connector Terminal Connector Terminal
    E125 15 M71 6 Yes

  5. Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.

    ABS actuator and electric unit (control unit) — Continuity
    Connector Terminal
    E125 15 Ground No

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

CHECK VDC OFF SWITCH GROUND CIRCUIT

Check the continuity between VDC OFF switch harness connector and ground.

VDC OFF switch — Continuity
Connector Terminal
M71 8 Ground Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace error-detected parts.

CHECK VDC OFF SWITCH

Check the VDC OFF switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Replace the VDC OFF switch. Refer to Removal and Installation.

CHECK VDC OFF SWITCH SIGNAL

CONSULT

  1. Select “OFF SW” in “Data Monitor” mode of “ABS”.

  2. Check that the function operates normally according to the following conditions:

    Condition Data Monitor
    When VDC OFF switch is pressed and VDC OFF indicator lamp in combination meter is in ON status On
    When VDC OFF switch is pressed and VDC OFF indicator lamp in combination meter is in OFF status Off

Is the inspection result normal?

YES>>

Inspection End.

NO>>

GO TO 5.

CHECK TERMINAL

  1. Check the ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.

  2. Check the VDC OFF switch pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation.

NO>>

Repair or replace error-detected parts.

Component Inspection

CHECK VDC OFF SWITCH

  1. Ignition switch OFF.

  2. Disconnect VDC OFF switch harness connector.

  3. Check the continuity between terminals of VDC OFF switch harness connector.

    VDC OFF switch Condition Continuity
    Terminals
    6 8 When VDC OFF switch is pressed Yes
    When VDC OFF switch is not pressed No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace the VDC OFF switch. Refer to Removal and Installation.

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