DTC U2153 Cadillac
Lack of HO2S-11 Switching, Fuel Trim at Rich Lean Limit
Lack of HO2S-11 Switching, Fuel Trim at Rich Lean Limit
Description
DTC P0300-P0310 not set, engine running in closed loop, and the PCM detected the HO2S circuit was too lean or too rich, or that it could no longer change Fuel Trim because it was at its rich limit or its lean limit.
Video Guide
Diagnostic Info
- DTC Code: U2153
- Brand: Cadillac