Removal Procedure

Open the hood.
Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the battery ground cable nut (1).

Fig 1: Battery Negative Cable And Battery Ground Cable Nut
Courtesy of GENERAL MOTORS COMPANY
Remove the battery negative cable (2).
Disconnect the wiring harness current sensor plug (4).

Fig 2: Wiring Harness Current Sensor Plug
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Remove the current sensor (5) from the battery tray.
Remove the current sensor (2) from the battery negative cable (1).

Fig 3: Battery Negative Cable & Current Sensor
Courtesy of GENERAL MOTORS COMPANY