2026-08-09

软管 - 入口 - 逆变器 - 后驱动电机 (4DU)（拆卸和更换）

校正代码 18301732 0.36 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and its associated FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. NOTE: See 人员保护 to make sure wearing proper PPE when performing the below procedure. NOTE: See 人体工程学注意事项 for safe and healthy working practices.

  • 2023-08-14: Added a note about vacuum refill requirement when the coolant loss is greater than 1L.
警告
This procedure is a DRAFT. Although it has been validated, Warnings and Cautions might be missing. Follow safety requirements and use extreme caution when working on or near High Voltage systems and components.

拆卸

  1. Move the vehicle to a 2 post lift. See 举升车辆 - 双柱举升机.
  2. Enable Service Mode on the touchscreen. See 维护模式.
  3. Remove the rear underhood apron. See 前备箱挡板 - 后部（拆卸和更换）.
  4. Remove the cabin intake duct. See 槽 - 上部 - 驾驶室进气（拆卸和更换）.
  5. Disconnect LV power. See 12V/低压电源（断开和连接）.
  6. Remove the mid aero shield panel. See 面板 - 流线型护板 - 后部（拆卸和更换）.
  7. Release the clips (x4) that attach the coolant hoses to the rear skid plate.
    注
    Clip quantity varies with older vehicles.
  8. Remove the HV battery rear skid plate. See 滑板 - 高压电池 - 后部（拆卸和更换）.
  9. Position a coolant drain collector underneath the LH rear of the HV battery.
  10. Release the clip, disconnect the rear drive unit inverter inlet hose from the HV battery, and then immediately plug both fittings.
  11. Release the clip, disconnect the rear drive unit inverter inlet hose from the rear drive unit inverter, and then immediately plug both fittings.
  12. Release the clip that attaches the rear drive unit inverter inlet hose from rear drive unit HV harness.
  13. Remove the rear drive unit inverter inlet hose down and out from between the rear subframe and the HV battery.

安装

  1. Install the rear drive unit inverter inlet hose in and up between the rear subframe and the HV battery.
  2. Fasten the clip that attaches the rear drive unit inverter inlet hose to rear drive unit HV harness.
  3. Remove the plugs from the fittings, immediately connect the rear drive unit inverter inlet hose to the rear drive unit inverter, fasten the clip, and then perform a Push-Pull-Push check of the fitting.
  4. Remove the plugs from the fittings, immediately connect the rear drive unit inverter inlet hose to the HV battery and fasten the clip.
    注
    Perform a push-pull-push test to make sure that the hose is fully secured. Coolant loss greater than 1L requires vacuum fill.
  5. Remove the coolant drain collector from under the vehicle.
  6. Install the HV battery rear skid plate. See 滑板 - 高压电池 - 后部（拆卸和更换）.
  7. Fasten the clips (x4) that attach the coolant hoses to the rear skid plate.
    注
    Clip quantity varies with older vehicles.
  8. Install the mid aero shield panel. See 面板 - 流线型护板 - 后部（拆卸和更换）.
  9. Connect LV power. See 12V/低压电源（断开和连接）.
  10. On the touchscreen, touch the wrench icon > Diagnostics > Thermal.
    注
    Alternatively, touch Controls (vehicle icon) > Service Mode > Diagnostics > Thermal.
  11. Hold up on the turn signal stalk, and then press and hold the brake pedal at the same time for 10 seconds to authorize.
  12. On the touchscreen, touch START to the left of “Start Coolant Air Purge” and wait for the task to complete (10 minutes).
    注
    Alternatively, touch START to the left of “Start Coolant Air Purge”, touch RUN TASK, wait for the task to complete (10 minutes), then touch X in the upper left corner.
  13. Add coolant to the reservoir as necessary, and install the reservoir cap.
  14. Install the cabin intake duct. See 槽 - 上部 - 驾驶室进气（拆卸和更换）.
  15. Install the rear underhood apron. See 前备箱挡板 - 后部（拆卸和更换）.
  16. Disable Service Mode. See 维护模式.
  17. Remove the vehicle from the 2 post lift. See 举升车辆 - 双柱举升机.