Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost of diagnosing the U2197 Mercury code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
For vehicles with automatic transmissions, vehicle speed information is sent to the Powertrain Control Module (PCM) from the Output Shaft Speed (OSS) Sensor over the communication network. For vehicles with manual transmissions, this information is sent to the PCM from the Vehicle Speed Sensor (VSS). The Diagnostic Trouble Code (DTC) will set if the Speedometer/Odometer is inoperative.
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