DTC U1097 Cadillac
O2 Sensor Positive Current Control Circuit Open - Bank 1, Sensor 1
O2 Sensor Positive Current Control Circuit Open - Bank 1, Sensor 1
Description
O2S ceramic temp, gt;715° C Lambda control, Closed loop Mass air integral, 0.8 kg lambda set value, 0.97.. .1.03 O2S ceramic temp, gt;715 °C electrical adjustment, not active heater control, active EVAP purge valve, ready no fault O2S ceramic temp, gt;715° C Lambda modulation gt;0.02 Lambda control, Closed loop heater control, active
Cause and Solution
Check fuseCheck for short ground in wiresCheck voltage from oxygen sensorCheck oxygen sensor heater voltage groundReplace ECM
Video Guide
Diagnostic Info
- DTC Code: U1097
- Brand: Cadillac