P2001 Possible Causes
- Faulty sensor or solenoid
- Sensor or solenoid harness is open or shorted
- Poor electrical connection in sensor or solenoid circuit
- Powertrain Control Module (PCM) / Engine Control Module (ECM) software update
- Faulty Powertrain Control Module (PCM) / Engine Control Module (ECM)
- Damaged catalytic converter
- Improper catalytic converter operation
What Does It Mean?
How to Fix Code P2001
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
P2001 Possible Symptoms
Engine light on (or service engine soon warning light)
P2001 Meaning
NOx Trap Efficiency Below Threshold Bank 2 is the generic description for P2001 code, but the manufacturer may have a different description. Currently we have no further information about the OBDII P2001 code