P2152: Fuel Injector Group C Supply Voltage Circuit/Open
Do not keep driving
Expect a severe misfire. On a V engine the affected cylinders may be split across both banks, which looks like two separate problems and is one supply — worth mentioning if a workshop is treating each bank separately.
What this code means
A fault in the supply feeding a third injector group. Three or more groups indicate an engine with enough cylinders to warrant them — a V6, V8 or larger — where the grouping usually follows firing order across both banks rather than following the banks themselves.
That is worth knowing when interpreting the misfire pattern: on such an engine the cylinders in a group may be split across both sides of the V, so a group failure produces misfires on both banks. Reading that as two separate bank faults is the mistake this code exists to prevent.
Likely causes
Start here
- Faulty fuel injector control module · specialist
- Short circuit in a fuel injector · moderate
- Damaged injector wiring harness · moderate
Less common
- Corroded or loose connector · easy
- Poor module ground connection · 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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