CUMMINS-2746 moderate Cummins ›

Cummins fault code 2746 — definition not reliably documented

The CUMMINS-2746 (Cummins) diesel fault code means: Cummins fault code 2746 — definition not reliably documented. This is a moderate severity code.

Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.

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Keep driving?
Yes, but fix soon
DIY difficulty
intermediate
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What Are the Symptoms of CUMMINS-2746?

  • Check Engine or an aftertreatment warning light on
  • Exact symptoms depend on the system this fault actually covers
  • The manufacturer's diagnostic software shows which component and circuit is involved

What Causes CUMMINS-2746? (Most Likely First)

  • A fault in the component or circuit this code monitors (confirm which in the manufacturer's service information) High
  • Damaged wiring, a corroded connector, or a poor ground in that circuit Moderate
  • A related sensor or control module reporting or causing the fault Moderate

Can I Still Drive with CUMMINS-2746?

Yes, but fix soon. CUMMINS-2746 is rated moderate severity. It is not an immediate stop-driving fault, but it will not clear itself — book the repair rather than ignoring it.

Frequently Asked Questions

What does cummins fault code 2746 mean?

We could not establish the meaning of 2746 from freely available Cummins documentation, and the sources that do list Cummins fault codes either do not contain 2746 or give it a different meaning from what used to be published here. Read it with the manufacturer's diagnostic software, which shows the fault's SPN, FMI and description directly.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose CUMMINS-2746?

  1. Read the fault with the manufacturer's diagnostic software and note the SPN and FMI it reports alongside 2746.

  2. Look the SPN and FMI up in the manufacturer's service information for your engine and model year before replacing parts.

  3. Inspect the wiring and connectors for the indicated circuit first.

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