| Circuit Diagram |
| [A type of driver's seat] |

| [B type of driver's seat] |

| [C type of driver's seat] |

| [D type of driver's seat] |

| [A type Assist] |

| [B type Assist] |

| [C type Assist] |

Removal Air lumbar support and bolster assembly 1. Disconnect the negative (-) battery terminal. 2. Remove the front seat back cover. (Refer to Body - "Front Seat Back Cover") 3.
Inspection 1. Power seat switch sends/receives signals via CAN communication so it is impossible to check the electric current of switch components.
Replacement 1. Discharge refrigerant from refrigeration system. 2. Replace any faulty tubes or hoses. Cap the open fittings immediately to keep moisture or dirt out of the system. 3. Tighten the bolt or nut joint to the specified torque.
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the intake actuator connector. 3. Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the intake actuator operates to the recirculation position when connected in reverse.