P2677 Possible Causes
- Faulty air intake filter command
- Air intake filter command harness is open or short-circuited
- Poor electrical connection in the air intake filter command circuit
How to Fix Code P2677
Check the “Possible Causes” listed above. Visually inspect the cable harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Engine light on (or service engine soon warning light)
P2677 Meaning
The Powertrain Control Module (PCM) monitors the air intake filter command circuit. The PCM sets the OBDII code when the air intake filter command circuit falls outside factory specifications.