OEM capabilities now in the palm of your hand for a fraction of the cost
If you’re driving a Peterbilt or Kenworth with a PACCAR MX engine, you no longer have to rely on a trip to the dealer to get accurate diagnostic information. With the latest update to OTR Diagnostics, you now have dealer-level heavy duty truck diagnostics right on your phone, no laptop, no cables, and no expensive software required.
We just released full PACCAR P-Code coverage for all PACCAR MX engines from 2011 to 2024. That means you’ll now see the exact same P-Codes used by the dealer’s DAVIE4 software, not the generic SPN/FMI codes you’re used to seeing for engine and aftertreatment faults.
What are PACCAR P-Codes?
PACCAR P-Codes provide highly specific fault information that takes the guesswork out of diagnosing issues. Instead of trying to interpret broad FMI codes, you’ll see precise, actionable diagnostic data with every fault.
For example:
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P1407 – A leak in the crankcase system. This is a common issue, and now it’s easy to spot.
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P3951 – The DEF tank sensor ECU has lost communication with the DEF quality sensor. This code usually means it’s disconnected or needs replacement.
Each code includes a detailed explanation, plus an indicator to show whether it’s active or inactive, so you know exactly what’s going on with your truck.
The power of heavy-duty truck diagnostics in your pocket:
This update gives you OEM-level heavy-duty truck diagnostics that used to be locked behind dealer tools. Now, you can access the same fault code data the dealer sees without the high cost or hassle.
Whether you’re:
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Diagnosing an issue while on the road
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Inspecting a truck before purchasing
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Working with a mechanic on repairs
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Managing a fleet and trying to minimize downtime
You’ll have the confidence to make informed decisions with real-time diagnostic data.
Faster, smarter repairs with P-Code sharing:
With OTR Diagnostics, you can instantly share P-Codes with your technician or print fault reports to take to the shop. That means faster repairs, clearer communication, and less back-and-forth, all thanks to accurate heavy-duty truck diagnostics.
This isn’t just another feature. It’s a new standard.
Get started with dealer-level PACCAR diagnostics:
OTR Diagnostics puts the power of dealer-level diagnostics in your hands literally. If you’re ready to take control of your repairs, avoid unnecessary downtime, and save thousands in service costs, now’s the time to upgrade. Experience the future of heavy-duty truck diagnostics without the dealer visit.
Learn more about how OTR Diagnostics can help you and your business, go here. https://otrperformance.com/pages/features
