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Historically, mechanical and electrical components were tested and

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repaired by following service manuals and using the service technician’s skills and five senses.

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But as vehicles have evolved into extremely complex products,

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computerized tools are needed.

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Tools and software can efficiently detect, diagnose

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and report malfunctions, instead of having a service technician performing all fault tracing.

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In some cases it can automatically fix the problem.

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Diagnostics is done both on-board and off-board our vehicles and machines.

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On-board we have self-diagnostic and reporting capabilities.

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This gives the owner, operator or repair technician information about

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the status of the various systems in use.

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It also identifies and indicates malfunctions,

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their frequency and what area the fault is likely to be in.

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Off-board tools and systems, like Tech Tool

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and various connected services communicate

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with the on-board systems to harvest this information.

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We need various kind of diagnostics, for several reasons:

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In our plants diagnostics are used to ensure that the vehicle is correctly assembled.

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On-board diagnostics are needed to comply with safety and regulations.

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It is needed for brake system failures, emission-related functions and many other purposes.

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Diagnostics influences uptime and decreases downtime.

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It improves the overall uptime keeping the vehicle running to generate income to the driver or fleet owner.

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By communicating detected faults to the service technician good diagnostics

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will eliminate the fault tracing time and also decrease downtime and service billing hours.

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This means that diagnostics is an integrated part of the entire vehicle lifecycle.