What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
2Original wording in English
BUICK, CHEVROLET, GMC
Reported code forms P2157
This Preliminary information communicates the possibility of one or more of the following dtc's P2148, P2151, P2154, P2157 to be set as current due to internal PCM hardware issue.
AUDI
Reported code forms P2157
AUDI: MIL ON (DTC P2146-P2157 FOR FUEL INJECTOR SUPPLY VOLTAGE). ENGINE RUNS ROUGH BUT DOES NOT STALL. *PE
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.