Nissan Murano: Seat :: Dtc/circuit Diagnosis / Seat Back Heater

Nissan Murano (Z52) 2015-2024 Service Manual / Body Interior / Seat :: Dtc/circuit Diagnosis / Seat Back Heater

Component Function Check

CHECK SEAT BACK HEATER FUNCTION

Check whether or not the temperature of the seat back heater changes in accordance with the HEAT switch operation of the climate controlled seat control switch.

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK SEAT BACK HEATER INPUT SIGNAL

  1. Ignition switch ON.

  2. Check voltage between seat back heater harness connectors.

    Seat back heater Condition

    Voltage

    (Approx.)
    Connector (+) (-)
    Terminal
    LH B213 1 2 Climate controlled seat switch HEAT 0 V - 12 V*
    OFF 0 V
    RH B309 1 2 Climate controlled seat switch HEAT 0 V - 12 V*
    OFF 0 V

    *:It changes between 12 and 0 V.

    NOTE:

    Wait 1 minute or more after the activation start, and then start the measurement.

Is the inspection result normal?

YES>>

Replace seat back heater. Refer to Exploded View.

NO>>

GO TO 2.

CHECK SEAT BACK HEATER CIRCUIT

  1. Ignition switch OFF.

  2. Disconnect climate controlled seat control unit connector and seat back heater connector.

  3. Check continuity between climate controlled seat control unit harness connector and seat back heater harness connector.

    Climate controlled seat control unit Seat back heater Continuity
    Connector Terminal Connector Terminal
    LH B204 27 B213 2 Yes
    29 1
    RH B321 27 B309 2
    29 1
  4. Check continuity between climate controlled seat control unit harness connector and ground.

    Climate controlled seat control unit Continuity
    Connector Terminal
    LH B204 27 Ground No
    29
    RH B321 27
    29

Is the inspection result normal?

YES>>

Replace climate controlled seat control unit. Refer to Climate Controlled Seat Control Unit.

NO>>

Repair or replace harness.

    Climate Controlled Seat Switch Indicator

    Component Function Check CHECK CLIMATE CONTROLLED SEAT SWITCH INDICATOR FUNCTION Check that the related indicator lamp illuminates when climate controlled seat switch is set to HEAT or COOL mode...

    Seat Back Heater Sensor

    Component Function Check CHECK SEAT BACK HEATER FUNCTION Check whether or not the temperature of the seat back heater changes in accordance with the HEAT switch operation of the climate controlled seat control switch...

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    Values on the Diagnosis Tool NOTE: The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items. Monitor item Condition Value/Status AMB TEMP SEN Ignition switch ON — Equivalent to ambient temperature IN-VEH TEMP Ignition switch ON — Equivalent to in-Nissan Murano vehicle temperature (front side) INT TEMP SEN Ignition switch ON — Equivalent to front evaporator fin temperature SUNLOAD SEN Ignition switch ON — Equivalent to sunload (driver side) AMB SEN CAL Ignition switch ON — Equivalent to ambient temperature IN-VEH CAL Ignition switch ON — Equivalent to in-Nissan Murano vehicle temperature (front side) INT TEMP CAL Ignition switch ON — Equivalent to front evaporator fin temperature SUNL SEN CAL Ignition switch ON — Equivalent to sunload (driver side) COMP REQ SIG Engine: Run at idle after warming up A/C switch: ON (Compressor operation status ON) On A/C switch: OFF (Compressor operation status OFF) Off FAN REQ SIG Engine: Run at idle after warming up Front blower motor: ON On Front blower motor: OFF Off FAN DUTY Engine: Run at idle after warming up Front blower motor: ON 25 – 81 Front blower motor: OFF 0 XM Ignition switch ON — Value according to target air flow temperature (driver side) PA TARGET A/TEMP Ignition switch ON — Value according to target air flow temperature (passenger side) ENG COOL TEMP Ignition switch ON — Equivalent to engine coolant temperature Nissan Murano Vehicle SPEED Driving — Equivalent to speedometer reading PASS SUNL CAL Ignition switch ON — Equivalent to sunload (passenger side) PASS SUNL SEN CAL Ignition switch ON — Equivalent to sunload (passenger side) Reference Value TERMINAL LAYOUTPHYSICAL VALUES Terminal No...

    Categories

    Seatback pockets

    Nissan Murano. Seatback pockets

    Theremaybe one or two seatback pockets located on the back of the driver and passenger seats. The pockets can be used to store maps.

    WARNING

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