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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 476 (Instrument Cluster System) >> Diagnosis And Testing >> Instrument Cluster >> Pin Point Tests >> Pin Point Test M: The Charging System Warning Indicator Is Never On >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The charging system warning indicator is controlled by the instrument cluster based upon data received from the generator through circuit 904 (LG/RD). The instrument cluster sets DTC B1317 if the battery voltage exceeds 16.5 volts DC ± 0.5 volts DC, when the ignition switch is in the START/RUN position. The instrument cluster sets DTC B1318 if battery voltage drops to less than 9 volts DC ± 0.5 volts DC, when the ignition switch is in the START/RUN position.

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