Test Description

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

2. Tests for an open in the BCM battery positive voltage circuits and the ignition voltage circuits.

3. Tests for an open in the BCM ground circuits.

Fig 1: Cannot Enter BCM Diagnostics Chart

Courtesy of GENERAL MOTORS CORP.

Fig 2: Control Module References Chart

Courtesy of GENERAL MOTORS CORP.