P2152Fuel Injector Group C Supply Voltage Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2152 belongs to the third shared injector supply, so it appears only on engines with at least three injector groups or, at GM petrol engines, at least three cylinders. GM's 2009 Duramax puts injectors 2 and 5 into group 3 and flags an open, short or missing load after 6 ms, type A. VW's 2014 Touareg V6 TDI stores it when the diagnostic signal of the group C power stage fails, and the Passat VR6 allows a wider high-side window for this group, below 2.3 A or above 18.6 A. In GM petrol direct injection it covers the high-side control line of cylinder 3; GM bulletin PIP4924D lists it among injector codes on 3.0 L and 3.6 L V6 engines whose injector harness rubs through. Misfire on the related cylinders is the usual effect.
- What you may notice
- Misfire on the group C cylinders
- Rough running, reduced power
- Check engine lamp on
- Likely causes
- LikelyInjector harness rubbed through at plenum, bolts or fuel line
- PossibleLoose or corroded injector connector
- PossibleOpen coil or piezo stack in an injector of the group
- RareFaulty power stage in the engine control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.