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July 30, 2026 Service bulletin

This article describes how to fix a speedometer that does not read accurately

Ic Bus technical service bulletin IK2600052 for 2007-2016 Ic Bus Cesb, 2007-2016 International Lonestar and 2007-2016 International Durastar and others.

Bulletin number
IK2600052
Component
Electrical system
Summary
This article describes how to fix a speedometer that does not read accurately. An inaccurate speedometer can be caused by changing the tire size, changing rear axle ratio (RAR), or by parameters being inadvertently changed during a programming event. Use the formulas and calculator below to correct the pulses per mile (PPM).

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