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Check Climate Controlled Seat Control Unit Power Supply Circuit

  1. CHECK FUSE

    Check 10A fuse [No. 12, located in fuse block (J/B)]

    OK or NG 

    OK: GO TO 2.

    NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to POWER SUPPLY ROUTING CIRCUIT .

  2. CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT
    1. Disconnect climate controlled seat relay connector.
    2. Turn ignition switch ON.
    3. Check voltage between climate controlled seat relay harness connector and ground.
      VOLTAGE SPECIFICATION

      Terminal Voltage (V) (Approx.)
      (+) (-)
      Climate controlled seat relay connector Terminal
      E16 2 Ground Battery voltage
      Fig 1: Checking Voltage Between Climate Controlled Seat Relay Harness Connector And Ground
      G05213051Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 3.

      NG: Repair or replace harness between fuse block (J/B) and climate controlled seat relay.

  3. CHECK CLIMATE CONTROLLED SEAT RELAY

    Check continuity climate controlled seat relay.

    CONTINUITY CHART

    Climate controlled seat relay connector Terminal Condition Continuity
    E16 3 5 12V direct current supply between terminals 1 and 2 Yes
    No current supply No
    6 7 12V direct current supply between terminals 1 and 2 Yes
    No current supply No
    Fig 2: Identifying Relay Terminals
    G04877433Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 4.

    NG: Replace climate controlled seat relay.

  4. CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Check continuity between climate controlled seat relay connector and ground.
      CONTINUITY CHART

      Terminal Continuity
      Climate controlled seat relay connector Terminal Ground
      E16 1 Yes
      Fig 3: Checking Continuity Between Climate Controlled Seat Relay Connector And Ground
      G05213053Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: Check the condition of the harness and connector.

      NG: Repair or replace harness between climate controlled seat relay and ground.