CHEVROLET

17-NA-155

2017-10-01 · NHTSA 10190265

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Malfunction Indicator Lamp (MIL) Illuminated - DTC P015B Set Condition-Some customers may comment that the MIL is illuminated. The technician may find DTC P015B set. Cause This condition may be caused by the Engine Control Module (ECM) calibration too sensitive in setting DTC P015B. Correction-Note: Do Not replace the O2 sensor until the latest ECM calibration has been validated. Validate the ECM has the latest software calibration: • If the ECM is not at the latest calibration, it must be reprogrammed to the latest software calibration available. • If the ECM has the latest calibrations, refer to SI for the DTC set.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.