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Normal Operation

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle speed information is sent to the instrument cluster by the PCM over the CAN, circuits 3125 (RD/YE) and 3126 (TN/YE). The instrument cluster will set DTC U1123 if it fails to receive the odometer rolling count data from the PCM over the CAN circuits. The instrument cluster will set DTC U1041 if the instrument cluster fails to receive speed input data from the PCM over the CAN network.

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