Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: Thigh Support Sensor

Nissan Rogue (T33) 2021-Present Service Manual / Body Interior :: Automatic Drive Positioner / Dtc/circuit Diagnosis :: Thigh Support Sensor

Component Function Check

CHECK FUNCTION

CONSULT

  1. Ignition switch ON.

  2. Select “Thigh support motor position” in “Data monitor” mode of “DRIVER SEAT”.

  3. Check thigh support sensor signal under the following conditions.

Monitor item Condition Status
Thigh support motor position Thigh support Operate (upward) Change (increase)
Operate (downward) Change (decrease)
Other than the above No change

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK THIGH SUPPORT SENSOR SIGNAL

Check signal between driver seat control unit harness connector and ground with oscilloscope.

(+) (-) Condition

Signal

(Reference value)
Driver seat control unit
Connector Terminal
B213 15 Ground Thigh support Operate

Other than the above 5 V*

*: When the power consumption control of driver seat control unit is in wake-up state.

Is the inspection result normal?

YES>>

Replace driver seat control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK THIGH SUPPORT SENSOR SIGNAL CIRCUIT (OPEN)

  1. Ignition switch OFF.

  2. Disconnect driver seat control unit connector and thigh support motor LH connector.

  3. Check continuity between driver seat control unit harness connector and thigh support motor LH harness connector.

    Driver seat control unit Thigh support motor LH Continuity
    Connector Terminal Connector Terminal
    B213 15 B221 5 Yes

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the harness or connector.

CHECK THIGH SUPPORT SENSOR SIGNAL CIRCUIT (SHORT TO GROUND)

Check continuity between driver seat control unit harness connector and ground.

Driver seat control unit (—) Continuity
Connector Terminal
B213 15 Ground No

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair the harness or connector.

CHECK THIGH SUPPORT SENSOR POWER SUPPLY VOLTAGE

  1. Connect driver seat control unit connector.

  2. Check voltage between thigh support motor LH harness connector and ground.

    (+) (-)

    Voltage

    (Approx.)
    Thigh support motor LH
    Connector Terminal
    B221 2 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

GO TO 5.

CHECK THIGH SUPPORT SENSOR POWER SUPPLY CIRCUIT (OPEN)

  1. Disconnect driver seat control unit connector.

  2. Check continuity between thigh support motor LH harness connector and driver seat control unit harness connector.

    Thigh support motor LH Driver seat control unit Continuity
    Connector Terminal Connector Terminal
    B221 2 B213 34 Yes

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair the harness or connector.

CHECK THIGH SUPPORT SENSOR POWER SUPPLY CIRCUIT (SHORT TO GROUND)

Check continuity between thigh support motor LH harness connector and ground.

Thigh support motor LH (—) Continuity
Connector Terminal
B221 2 Ground No

Is the inspection result normal?

YES>>

Replace driver seat control unit. Refer to Removal and Installation.

NO>>

Repair the harness or connector.

CHECK THIGH SUPPORT SENSOR GROUND CIRCUIT (OPEN)

  1. Disconnect driver seat control unit connector.

  2. Check continuity between thigh support motor LH harness connector and driver seat control unit harness connector.

    Thigh support motor LH Driver seat control unit Continuity
    Connector Terminal Connector Terminal
    B221 4 B213 33 Yes

Is the inspection result normal?

YES>>

Replace seat cushion frame. Refer to Disassembly and Assembly.

NO>>

Repair the harness or connector.

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