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Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs LZE/LZ4/LZ9) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) in Engine Electrical.
  2. Remove the left instrument panel (I/P) insulator. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gages, and Console.
    3. Fig 1: Junction Block & Components
    GM803447Courtesy of GENERAL MOTORS CORP.
  3. Remove the screws from the accessory wiring junction block.
  4. Adjust the junction block for access.
  5. Remove the circuit breakers (4) and the relays from the junction block as required. Refer to Relay Replacement (Within an Electrical Center)  or Relay Replacement (Attached to Wire Harness) .
  6. If necessary remove the junction block from the bracket assembly.
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