P2610ECM/PCM Internal Engine Off Timer Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- Several emission monitors need to know how long the engine was off, for example to judge a cold start or an evaporative test after a soak. P2610 reports that the module's engine-off timer gives implausible values. Ford's 2020–2023 gasoline summary flags an engine-off time under 30 s after an inferred soak, an error above 15 s or a missing CAN timer message at start; its 2023 diesel compares 30 degrees of coolant cooling with at least 1200 s counted and checks an 8 s afterrun window (7.52–8.48 s). GM's 2013 tables test the initial value (below 0 or above 10 s) and tick spacing (0.8–1.2 s), Type B. Toyota and Lexus fixed false sets on 2014–2018 models by ECM reprogramming (T-SB-0146-16, T-SB-0336-17); Mazda keeps the timer in the cluster and logs P2610 with P2507 after short restarts in transport mode.
- What you may notice
- MIL on, usually without drivability change
- Cold-start and EVAP monitors may not run
- Likely causes
- LikelyEngine module software prone to false timer faults (update available)
- PossibleBattery disconnect, transport fuse removed or supply dropout during soak
- RareTimer message from another module (e.g. cluster) missing on CAN
- RareInternal timer fault in the control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.