P2152 code meaning
Fuel Injector Group C Supply Voltage Circuit/Open
Powertrain system Generic code P21xx codes Check engine light
What P2152 means
P2152 belongs to the third shared injector supply, so it appears only on engines with at least three injector groups or, at GM gasoline 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 gasoline 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.
P2152 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2152
- Misfire on the group C cylinders
- Rough running, reduced power
- Check engine lamp on
Common causes of P2152
- Most 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
- Less likelyFaulty power stage in the engine control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel injectorInjector wiringEngine control module
What each part of P2152 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1 | Area: fuel and air metering. |
| 52 | The exact fault in that area. |
What to do next
- Note P2152 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2152
What does P2152 mean?
P2152 means "Fuel Injector Group C Supply Voltage Circuit/Open". P2152 belongs to the third shared injector supply, so it appears only on engines with at least three injector groups or, at GM gasoline engines, at least three cylinders. It is a generic code, so it means the same on every make.
Is it safe to drive with P2152?
Drive gently and only to a workshop. With P2152 the car can go into limp mode (reduced power) to protect itself.
Will P2152 fail an emissions test?
Yes, it can. P2152 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2152 to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2152 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.