FixVault

Test Description

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

4.  This step determines if the ignition 1 circuit is shorted to ground.

5.  This step determines if the BCM is internally shorted.

6.  This step determines if voltage is supplied from the battery to the fuse.

Fig 1: Identifying DTC B1374 Diagnostic Table
G01779815Courtesy of GENERAL MOTORS CORP.