LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2006 >> Prius >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Battery Management Systems >> P112 Hybrid Battery Control System >> Battery Ecu >> Removal

Battery Ecu: Removal

CAUTION:
  • When working on the high voltage systems, always wear insulating gloves.
  • Keep the removed service plug in your pocket to prevent other technicians from reconnecting it while you are servicing the vehicle.
  • After removing the service plug grip, do not touch the high voltage connectors and terminals for 5 minutes.
NOTE: After removing the service plug grip, do not operate the power switch as it may damage the hybrid vehicle control ECU.
  1. PRECAUTION 
    CAUTION: The hybrid system uses high voltage circuits, so improper handling could cause an electric shock or leakage. During service (e.g. installing or removing the parts, inspection, replacing the parts), be sure to follow the procedures (see PRECAUTION  ).
  2. REMOVE REAR NO. 2 FLOOR BOARD (See  REMOVAL  ) 
  3. REMOVE REAR DECK FLOOR BOX (See  REMOVAL  ) 
  4. REMOVE REAR NO. 3 FLOOR BOARD (See  REMOVAL  ) 
  5. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  6. REMOVE SERVICE PLUG GRIP (See  REMOVAL   ) 
  7. REMOVE REAR DECK TRIM COVER (See  REMOVAL   ) 
  8. REMOVE TONNEAU COVER (See  DISASSEMBLY   ) 
  9. REMOVE REAR SEAT CUSHION ASSEMBLY (See  DISASSEMBLY   ) 
  10. REMOVE REAR NO. 1 FLOOR BOARD (See  DISASSEMBLY   ) 
  11. REMOVE REAR SIDE SEAT BACK FRAME LH (See  DISASSEMBLY   ) 
  12. REMOVE REAR NO. 4 FLOOR BOARD (See  DISASSEMBLY   ) 
  13. REMOVE DECK FLOOR BOX LH (See  DISASSEMBLY   ) 
  14. REMOVE DECK TRIM SIDE PANEL LH (See  DISASSEMBLY   ) 
  15. REMOVE BATTERY CARRIER BRACKET (See  DISASSEMBLY   ) 
  16. REMOVE NO. 6 BATTERY CARRIER PANEL (See  DISASSEMBLY   ) 
  17. REMOVE JUNCTION TERMINAL (See  REMOVAL   ) 
  18. REMOVE BATTERY ECU 
    CAUTION: Wear insulating gloves.
    1. Disconnect the system main relay connector.
      CAUTION: Insulate the disconnected connectors with insulating tape.
    2. Disconnect the battery ECU connector.
      CAUTION: Insulate the disconnected connectors with insulating tape.
      Fig 1: Removing Battery ECU
      G04474001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the thermistor connector.
      CAUTION: Insulate the disconnected connectors with insulating tape.
    4. Remove the clamp, then disconnect the No. 2 frame wire connector.
      CAUTION: Insulate the disconnected connectors with insulating tape.
    5. Remove the nut, then disconnect the aluminum shield wire of the main battery cable.
      Fig 2: Disconnecting Aluminum Shield Wire Of Main Battery Cable
      G04474002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the 2 screws and battery ECU.
scientia non olet · About LEMON Manuals