Combined OBD codes — shared causes and checks | DVI Reports

Enter several OBD codes and see the possible links between them for free: shared causes, systems involved and what to check first.

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How it works

Enter several OBD codes read from the same car and see the possible links between them for free: shared causes, systems involved and what to check first. Several codes often have one cause, such as a power supply or ground problem.

  1. Enter all the codes read.
  2. See the shared causes and systems involved.
  3. Start with the checks recommended first.

Frequently asked questions

Why do many codes appear at once?

Low voltage, a poor ground or a communication fault can set codes in several modules. Check the battery and connections first.

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