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.

IMPORTANT: The high current sensor orientation is VERY important. The sensor wiring MUST be pointed towards the rear of the vehicle, and also the etched numbers on one side of the sensor terminal MUST be on the battery cut-off switch side.

Install the high current sensor (2).

Fig 1: View Of High Current Sensor & Battery Cut-Off Switch (5.3L Engine w/RPO HP2)

Courtesy of GENERAL MOTORS CORP.

Install the fuse power cable to the terminal.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the fuse power cable to high current sensor nut.
Tighten: Tighten the nut to 10 N.m (89 lb in).
Connect the high current sensor electrical connector.
Install the battery cut-off switch. Refer to Energy Storage Box (ESB) Cut Off Switch Replacement (5.3L Engine w/RPO HP2) .