P2610
ECM/PCM Engine Off Timer Performance
Engine control module (internal)
Generic OBD-II
Low
What it means
P2610 means the ECM/PCM's internal engine-off (soak) timer isn't performing as expected. That timer is used to schedule cold-start and other self-tests, so the fault mostly affects emissions readiness rather than how the car drives.
Low
Can I keep driving? Safe to drive — this is an internal ECM timing function; it doesn't affect how the engine runs, though it can keep emissions monitors from completing.
Common symptoms
What you'll notice
- Check-engine light on
- Readiness (emissions) monitors won't complete or show 'not ready'
- May fail a state emissions/smog test
- Otherwise normal engine operation
Common causes
Most likely first
- Internal ECM/PCM fault or software bugLikely
- Weak battery or parasitic drain disturbing keep-alive memoryCommon
- Corroded or loose ECM power/ground connectionsCommon
- Outdated ECM software needing a manufacturer updateLess often
How to diagnose & fix
Work through it in order
- Check battery health and charging voltage; correct any parasitic drain.
- Inspect and clean the ECM power and ground connections.
- Check for a manufacturer software update/reflash for the ECM.
- Clear the code and complete a full drive cycle to see if it returns.
- If it persists after a good update and clean power, the ECM may need replacement.
FAQ
Quick answers
Is it safe to drive with P2610?+
Yes. It won't leave you stranded or hurt the engine, but you may not pass an emissions test until it's resolved and the monitors run.
Can I just clear P2610?+
You can clear it, but if the internal fault is real it resets once the engine-off timer runs again.
Related codes
Often seen with P2610
Read & clear P2610 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX