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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 711 (Battery) >> Diagnostic Information and Procedures >> DTC P1637 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The Charge Indicator has battery voltage supplied when the ignition is in RUN and Start. The PCM controls the ground for this circuit and will supply ground during the bulb check or when a failure is detected due to a generator failure or a battery voltage that is out of range.

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