Sierra 1500 2WD V8-5.3L Hybrid (2004)
3. Install the ESB fan.
4. Install the ESB intermediate cover-
Energy Storage Box (ESB) Battery Replacement
ENERGY STORAGE BOX (ESB) BATTERY REPLACEMENT (WITH RPO CODE HP2)
TOOLS REQUIRED
J 43679 Battery Removal Handles
REMOVAL PROCEDURE
1. Perform the battery pack service charge procedure. Refer to Battery Pack Service Charge - HP2.
2. Remove the energy storage box (ESB) intermediate cover.
3. If necessary, remove the battery cut-off switch.
4. Disconnect the battery resistor electrical connectors (1) from the appropriate battery.
5. Disconnect the battery thermistor electrical connectors from the appropriate battery.
6. If necessary, remove the power cable nuts (1) from battery 1 and battery 2.
7. Remove the power cable (3) from battery 1 and battery 2.
8. Remove the battery resistor from the battery 1 positive terminal.
