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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1025 (Seats) >> With Climate Controlled Seats >> Component Diagnosis >> Climate Controlled Seat Switch >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CLIMATE CONTROLLED SEAT SWITCH

    Perform climate controlled seat switch component inspection. Refer to "COMPONENT INSPECTION (CLIMATE CONTROLLED SEAT SWITCH) ".

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Replace climate controlled seat switch.

  2. CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect climate controlled seat switch connector and climate controlled seat control unit connector B216.
    3. Check continuity between climate controlled seat switch connector M302 (A) terminal 1 and climate controlled seat control unit connector B216 (B) terminal 24.
      CONTINUITY CHART

      Climate controlled seat switch Climate controlled seat control unit Continuity
      Connector Terminal Connector Terminal
      M302 (A) 1 B216 (B) 24 Yes
    4. Check continuity between climate controlled seat switch connector M302 (A) terminal 1 and ground.
      Fig 1: Checking Continuity Between Climate Controlled Seat Switch Connector M302 Terminal 1 And Ground
      G05876230Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY CHART

      Climate controlled seat switch Ground Continuity
      Connector Terminal
      M302 (A) 1 No

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair harness or connectors.

  3. CHECK CLIMATE CONTROLLED SEAT SWITCH COOL CIRCUIT
    1. Disconnect climate controlled seat control unit connector B212.
    2. Check continuity between climate controlled seat switch connector M302 (A) terminal 2 and climate controlled seat control unit connector B212 (B) terminal 9.
      CONTINUITY CHART

      Climate controlled seat switch Climate controlled seat control unit Continuity
      Connector Terminal Connector Terminal
      M302 (A) 2 B212 (B) 9 Yes
      Fig 2: Checking Continuity Between Climate Controlled Seat Switch Connector M302 (A) Terminal 2 And Ground
      G05876231Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between climate controlled seat switch connector M302 (A) terminal 2 and ground.
      CONTINUITY CHART

      Climate controlled seat switch Ground Continuity
      Connector Terminal
      M302 (A) 2 No

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair harness or connectors.

  4. CHECK CLIMATE CONTROLLED SEAT SWITCH HEAT CIRCUIT
    1. Check continuity between climate controlled seat switch connector M302 (A) terminal 3 and climate controlled seat control unit connector B212 (B) terminal 1.
      CONTINUITY CHART

      Climate controlled seat switch Climate controlled seat control unit Continuity
      Connector Terminal Connector Terminal
      M302 (A) 3 B212 (B) 1 Yes
      Fig 3: Checking Continuity Between Climate Controlled Seat Switch Connector M302 (A) Terminal 3 And Ground
      G05876232Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Check continuity between climate controlled seat switch connector M302 (A) terminal 3 and ground.
      CONTINUITY CHART

      Climate controlled seat switch Ground Continuity
      Connector Terminal
      M302 (A) 3 No

      Is the inspection result normal? 

      YES: Replace climate controlled seat control unit.

      NO: Repair harness or connectors.

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