P1221 AUDI Possible Causes
- Faulty shutdown relay
- Shutdown relay wiring harness is open or short-circuited
- Poor electrical connection in the shutdown relay circuit
How to Fix Code P1221 AUDI?
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)
P1221 AUDI Meaning
Cylinder cut-off exhaust valves short to ground is the generic description for Audi P1221 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the Audi P1221 OBDII code.