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
7Original wording in English
BRIGHTDROP, BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P305E
This service bulletin provides a procedure to repair a customer concern of Stop/Start System Inhibited / IBS / Battery Monitor with Module Malfunction Indicator Light (MIL) Illuminated - DTC U152D, P15FF, P305D, P305E,…
CHEVROLET, GMC
Reported code forms P305E
This Preliminary information communicates the following issues and directs dealership to inspect the engine harness for shorting. Some customers may comment on any of the following concerns: - SES MIL - No Start - No…
CHEVROLET
Reported code forms P305E
This technical bulletin provides a repair procedure to correct a condition of Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0615, P0617, P305C, P305D, P305E and/or P3054 Set.
CHEVROLET, GMC
Reported code forms P305E
This Preliminary information communicates the following issues and directs dealership to inspect the engine harness for shorting. Some customers may comment on any of the following concerns: - SES MIL - No Start - No…
CHEVROLET, GMC
Reported code forms P305E
This Preliminary information communicates the following issues and directs dealership to inspect the engine harness for shorting. Some customers may comment on any of the following concerns: - SES MIL - No Start - No…
CHEVROLET, GMC
Reported code forms P305E
This Preliminary information communicates the following issues and directs dealership to inspect the engine harness for shorting. Some customers may comment on any of the following concerns: - SES MIL - No Start - No…
Check vehicle applicability
50A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| BrightDrop | EV600 | 2022 |
| Buick | ENVISION | 2022 |
| Buick | ENVISION | 2021 |
| Cadillac | CT4 | 2022 |
| Cadillac | CT4 | 2021 |
| Cadillac | CT4 | 2020 |
| Cadillac | CT5 | 2022 |
| Cadillac | CT5 | 2021 |
| Cadillac | CT5 | 2020 |
| Cadillac | ESCALADE | 2023 |
| Cadillac | ESCALADE | 2022 |
| Cadillac | ESCALADE | 2021 |
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.