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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 981 (Battery, Charging System & Starting System) >> Repair Instructions >> Energy Storage Box (ESB) Internal Signal Harness Replacement (5.3L Engine w/RPO HP2) >> Installation Procedure

Installation 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. Position the internal signal harness to the ESB as noted earlier.
  2. Engage the retainers (1, 2) in order to secure the harness.
    3. Fig 1: View Of ESB Internal Signal Harness & Retainers (5.3L Engine w/RPO HP2)
    GM1335918Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the ground wire screw.

    Tighten:  Tighten the screw to 2 N.m (18 lb in).

  4. Connect the high current sensor electrical connector.
  5. Connect the battery cut-off switch electrical connector.
  6. Connect the ESB fan electrical connectors.
  7. Install the ESCM. Refer to Energy Storage Control Module Replacement (5.3L Engine w/RPO HP2) .
  8. Connect the battery temperature sensor electrical connectors.
  9. Connect the battery resistor electrical connectors.
  10. Install the ESB intermediate cover. Refer to Energy Storage Box (ESB) Trim Cover Replacement (5.3L Engine w/RPO HP2) .
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