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How should the ELD handle the dashboard odometer display not matching the odometer value returned by the Engine Control Module (ECM)? For instance, when the engine is replaced and the value is not synchronized.

The ELD is required to obtain and display the ECM value at all times. Safety officials will use the odometer value reported on the ELD. Note that documentation of engine changes is required by 49 CFR Part 379 Appendix A to be maintained at the carrier’s place of business.

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Last Updated : December 12, 2017
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