IPU Case Removal/Installation

IMA components are located in this area. The IMA is a high-voltage system. You must be familiar with the IMA system before working on or around it. Make sure you have read the IMA service precautions before doing repairs or service.

1. Make sure the ignition switch to LOCK (0).
2. Do the 12 volt battery terminal disconnection procedure (see USING THE GR8 BATTERY DIAGNOSTIC STATION ).
3. Remove the IPU module air duct (see IPU MODULE FAN REPLACEMENT ).
4. Remove the IPU cover (see IPU COVER REMOVAL/INSTALLATION ).
5. Remove the PCU lid (see step  2).
6. Remove the IMA motor power cables (A).
   NOTE: Check the position of the U phase, the V phase, and the W phase cables before disconnecting them.
   Fig 1: IMA Motor Power And DC-DC Converter Cable With Torque Specifications

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
7. Remove the DC-DC converter cable (B), and wrap it with insulating tape.
8. Disconnect the connector (A).
   Fig 2: IPU Assembly, Terminals, Connector And Bolts With Torque Specifications

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
9. Remove the terminal (B).
10. Remove the bolts (C) and the IPU assembly (D).
11. Remove the clips (A) and the IPU case (B).
    NOTE: The IPU frame seals (C) must be replaced with new ones when the IPU case is removed.
    Fig 3: Identifying IPU Case, Clips And Frame Seals With Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
12. Install the parts in the reverse order of removal.
13. Do the 12 volt battery terminal reconnection procedure (see USING THE GR8 BATTERY DIAGNOSTIC STATION ).