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Home >> Fiat >> 2018 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Antilock Brake System (Abs) (Service Information) 500 - Electric) >> Hydraulic/Mechanical >> Integrated Control Unit (ICU) >> Removal

Integrated Control Unit (ICU): Removal

WARNING: This page is about a different variant/trim than selected.
WARNING:

On vehicles equipped with the high voltage system, disconnecting the 12-volt battery negative cable alone will not power down the 12-volt system. You must perform the 12-volt Power Down procedure before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

  1. Power down the high-voltage system. Refer to HIGH-VOLTAGE POWER DOWN PROCEDURE .
  2. Disconnect the 12 volt battery.
    GC0157873Courtesy of CHRYSLER GROUP, LLC
  3. Pinch the power electronics coolant reservoir return hose with two fingers and disconnect the hose from cover notch.
  4. Grasp the beauty cover at attaching points (1) as shown in the illustration.
    GC0157704Courtesy of CHRYSLER GROUP, LLC
  5. Lift the beauty cover (1) straight upward.
  6. Recover the air-conditioning system. Refer to STANDARD PROCEDURE .
  7. Remove the battery. Refer to BATTERY, REMOVAL .
  8. Remove the battery tray. Refer to TRAY, BATTERY, REMOVAL .
    GC0157694Courtesy of CHRYSLER GROUP, LLC
  9. Disconnect the Intelligent Battery Sensor (IBS) two wire connector (1). Position the IBS (2) aside.
    GC0157607Courtesy of CHRYSLER GROUP, LLC
  10. Disconnect the under-hood fusebox connectors (1, 2).
    GC0157761Courtesy of CHRYSLER GROUP, LLC
  11. Remove the bolt (2) that secures the suction line retainer (1) to the power distribution center (PDC) bracket.
    GC0157826Courtesy of CHRYSLER GROUP, LLC
  12. Disconnect the suction line (1) at the evaporator block (2).
    GC0157870Courtesy of CHRYSLER GROUP, LLC
  13. Disconnect the suction line (1) at the HV battery chiller block (2).
    GC0157688Courtesy of CHRYSLER GROUP, LLC
  14. Release the under-hood fuse box tabs (1) and position the fuse box to the side.
    GC0157724Courtesy of CHRYSLER GROUP, LLC
  15. Unplug the PDC connectors (1).
    GC0157729Courtesy of CHRYSLER GROUP, LLC
  16. Remove the PDC mounting nuts (1) and position the PDC to the side.
    GC0157703Courtesy of CHRYSLER GROUP, LLC
  17. Release the harness retainer (1) from the PDC bracket (2).
    GC0157740Courtesy of CHRYSLER GROUP, LLC

    .

  18. Remove and discard  the four attaching nuts (1) that secure the PDC bracket (2).
  19. Remove the bonding wire nut, position the bonding wire to the side.
  20. Remove the PDC bracket (1) from the vehicle.
    GC0157830Courtesy of CHRYSLER GROUP, LLC
  21. Pinch off the reservoir supply hose (3) to prevent draining the brake fluid reservoir (1) when the anti-lock brake module (ABM) is removed.
  22. Place a drain pan under the vehicle below ABM.
  23. Place rags or absorbent pad(s) under the ABM to prevent fluid from contacting painted surfaces.
    GC0157839Courtesy of CHRYSLER GROUP, LLC
  24. Rotate the ABM connector latch (1) downward. Disconnect the connector.
    GC0157779Courtesy of CHRYSLER GROUP, LLC
  25. Remove the six brake lines (1, 2, 3, 4, 6, 7) from the ABM (5).
  26. Loosen but do not remove  the ABM mount isolator nuts.
  27. While holding the brake lines clear, carefully remove the ABM (5) from the vehicle.
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