LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2009 >> H3 Base, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC B1420 >> Circuit/System Description

Circuit/System Description

The body control module (BCM) monitors the battery voltage on the battery voltage signal circuit. Damage to components, and incorrect data may occur when the voltage is out of range.