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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 955 (Battery, Charging System & Starting System) >> Repair Instructions >> Energy Storage Box (ESB) High Current Connector Replacement (5.3L Engine w/RPO HP2) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the energy storage box (ESB). Refer to Energy Storage Box (ESB) Service Disconnect/Connect (5.3L Engine w/RPO HP2) .
  2. Remove the ESB intermediate cover. Refer to Energy Storage Box (ESB) Intermediate Cover Replacement (5.3L Engine w/RPO HP2) .
  3. Remove the 42-volt positive/negative cable retainer nuts, and retainer.
    4. Fig 1: View Of 42-Volt Positive/Negative Cable Retainer & Nuts (5.3L Engine w/RPO HP2)
    GM1237047Courtesy of GENERAL MOTORS CORP.
  4. Remove the red connector position assurance (CPA) retainer.
  5. Disconnect the 42-volt positive/negative cable electrical connector (4).
    6. Fig 2: View Of 42-Volt Positive/Negative Cable Electrical Connector, AC Electrical Connector, Ground Strap & Stud
    GM1237048Courtesy of GENERAL MOTORS CORP.
  6. Remove the service disconnect power cable nut (1) and cable from the high current connector (HCC).
    7. Fig 3: View Of Service Disconnect Power Cable & Nut (5.3L Engine w/RPO HP2)
    GM1403628Courtesy of GENERAL MOTORS CORP.
  7. Remove the HCC power cable nut and cable from battery 3.
  8. Remove the HCC screws.
    9. Fig 4: View Of HCC Screws (5.3L Engine w/RPO HP2)
    GM1403634Courtesy of GENERAL MOTORS CORP.
  9. Remove the HCC.
    10. Fig 5: View Of HCC (5.3L Engine w/RPO HP2)
    GM1403635Courtesy of GENERAL MOTORS CORP.
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