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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC B1516 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The battery current sensor pulse width modulation (PWM) input signal is monitored by the body control module (BCM) which sends a serial data message to the engine control module (ECM) / powertrain control module (PCM) when the PWM input signal is out of the normal operating range.

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