Severity: Fix soon. Usually safe to drive for now.
The oxygen sensor behind the catalytic converter on bank 1 is not changing its signal at all, which usually means the sensor is dead.
Check the heater fuse and wiring, then replace the sensor.
Safe to drive. This sensor monitors emissions only.
Generally safe to drive, but get it checked soon. Safe to drive. This sensor monitors emissions only.
The most common causes are: Failed oxygen sensor; Failed sensor heater; Damaged wiring or connector; Blown fuse. A scan tool and a visual check of the parts above is where a technician starts.
Check the heater fuse and wiring, then replace the sensor.
