P1140 CADILLAC Possible Causes
- Faulty HO2S, Bank 1 Sensor 2
- Open or short circuit in Bank 1 Sensor 2 HO2S wiring harness
- Poor electrical connection in Bank 1 Sensor 2 HO2S circuit
How to Fix P1140 CADILLAC Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or engine service warning light soon)
P1140 CADILLAC Meaning
HO2S Transition Time Ratio, Bank 1 Sensor 2 is the generic description for P1140 Cadillac code, but the manufacturer may have a different description for your vehicle model and year. Currently, we don’t have more information about the OBDII P1140 Cadillac code.