P1142 MAZDA Possible Causes
- Faulty HO2S12
- HO2S12 harness is open or short-circuited
- Poor electrical connection of HO2S12 circuit
How to Fix P1142 MAZDA 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)
P1142 MAZDA Meaning
HO2S12 Heater Circuit High is the generic description for P1142 Mazda code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the P1142 Mazda OBDII code.