P2052: Reductant Injection Valve Circuit High Bank 2 Unit 1
What to do
Inducement deadline applies. Ask for the winding to be measured before the injector is replaced.
What this code means
The bank 2 unit 1 injector circuit reads above its valid range — an open circuit or a short to supply. Measuring the winding directly separates a failed injector from a broken wire, which matters here because the injector is the expensive half.
Likely causes
Start here
- Open circuit in injector wiring · moderate
- Corroded or loose connector · easy
- Faulty reductant injector · specialist
Less common
- Wiring shorted to voltage · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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