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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 380 (Instrument Cluster System) >> Diagnosis And Testing >> Instrument Cluster >> Principles of Operation >> Indicator Lamps >> O/D OFF Indicator (Escape, Mariner)

O/D OFF Indicator (Escape, Mariner)

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The instrument cluster receives the overdrive off signal from the PCM over the communication network. The overdrive off switch is hardwired to the PCM. When overdrive is selected off, the overdrive off switch provides a ground signal to the PCM. The PCM, upon receipt of the overdrive off ground signal, provides a overdrive off signal to the instrument cluster and the instrument cluster illuminates the O/D OFF indicator.

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