How to Fix Code P20B0
Check the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P20B0 Technical Notes
- – Defective reduction unit temperature sensor
- – Reduction unit temperature sensor wiring harness is open or short-circuited
- – Poor electrical connection in the reduction unit temperature sensor circuit
What Does It Mean?
P20B0
Possible Symptoms
Check engine light on (or service engine soon warning light)
P20B0 Meaning
Intermittent/irregular reduction unit temperature sensor circuit is the generic description for code P20B0, but the manufacturer may have a different description.