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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 224 (Engine Controls - Description & Operation - (Hybrid)) >> Powertrain Control Software >> Vehicle Speed Functional Overview >> Vehicle Speed From The Transaxle Control Module (TCM)

Vehicle Speed From The Transaxle Control Module (TCM)

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 TCM calculates traction motor speed from the traction motor shaft speed sensor and combines it with (PCM stored) tire size and axle ratio data to determine vehicle speed. This calculation is than sent to the PCM over the communication network.

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