Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: Lin Communication Circuit

Diagnosis Procedure

CHECK BCM OUTPUT SIGNAL

  1. Ignition switch ON.

  2. Check signal between BCM harness connector and ground using an oscilloscope.

    (+) (−)

    Signal

    (Reference value)
    BCM
    Connector Terminal
    With type A meter: B123 91 Ground

    With type B meter: M18 24

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK LIN COMMUNICATION CIRCUIT

  1. Ignition switch OFF, and then wait for 3 minutes with driver door open.

    NOTE:

    • Even after ignition switch OFF, power is supplied to accessories for a certain amount of time by the AUTO ACC function.

    • When Nissan Ariya vehicle is operated while on standby, power may be supplied to accessories.

  2. Disconnect following connectors:

    • BCM

    • Power window main switch

    • Front power window motor (driver side)

    • Passenger door mirror control module (if so equipped)

    • Moonroof motor assembly (if so equipped)

    • Sunshade motor assembly (if so equipped)

  3. Check continuity between BCM harness connector and ground.

    BCM (–) Continuity
    Connector Terminal
    With type A meter: B123 91 Ground No
    With type B meter: M18 24

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK LIN COMMUNICATION SIGNAL

  1. Ignition switch OFF, and then wait for 3 minutes with driver door open.

    NOTE:

    • Even after ignition switch OFF, power is supplied to accessories for a certain amount of time by the AUTO ACC function.

    • When Nissan Ariya vehicle is operated while on standby, power may be supplied to accessories.

  2. Disconnect following connectors:

    • Power window main switch

    • Front power window motor (driver side)

  3. Ignition switch ON.

  4. Check signal between power window main switch harness connector, front power window motor (driver side) harness connector and ground using an oscilloscope.

    (+) (−)

    Signal

    (Reference value)
    Connector Terminal
    Power window main switch

    D6*1

    D27*2
    4 Ground

    Front power window motor (driver side) D10 6

    *1: With automatic drive positioner

    *2: Without automatic drive positioner

Is the inspection result normal?

YES>>

Inspection End.

NO-1>>

Power window main switch: GO TO 4.

NO-2>>

Front power window motor (driver side): GO TO 5.

CHECK LIN COMMUNICATION CIRCUIT (POWER WINDOW MAIN SWITCH)

  1. Ignition switch OFF.

  2. Disconnect BCM connector.

  3. Check continuity between BCM harness connector and power window main switch harness connector.

    BCM Power window main switch Continuity
    Connector Terminal Connector Terminal
    With type A meter: B123 91

    D6*1

    D27*2
    4 Yes
    With type B meter: M18 24

    D6*1

    D27*2
    4 Yes

    *1: With Automatic Drive Positioner

    *2: Without Automatic Drive Positioner

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness.

CHECK LIN COMMUNICATION CIRCUIT [FRONT POWER WINDOW MOTOR (DRIVER SIDE)]

  1. Ignition switch OFF.

  2. Disconnect BCM connector.

  3. Check continuity between BCM harness connector and front power window motor (driver side) harness connector.

    BCM Front power window motor (driver side) Continuity
    Connector Terminal Connector Terminal
    With type A meter: B123 91 D10 6 Yes
    With type B meter: M18 24

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Repair or replace harness.

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