P1231 Possible Causes
- Faulty throttle body
- Throttle body harness is open or shorted
- Poor electrical connection to throttle body
How to Fix Code P1231?
Start by checking the “Possible Causes” listed above. Visually inspect the related 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 service engine soon warning light)
P1231 Meaning
The throttle position sensor 1 and 2 circuit is the generic description for code P1231, but the manufacturer may have a different description for your vehicle’s model and year. Currently, we don’t have more information about OBDII code P1231.