Code C2610 - Replace ECM or update?
Pulled out the ECM, all looked good including wiring harnesses no corrosion whatsoever. Battery tested, seems okay at proper voltage and is charging okay. No temperature issues with overheating at all.
All signs point to a possible replacement of ECM, so I have started looking online and they run about 300. But I did notice in Techstream, that when the code comes up, there is a link for an update on the module and have read on other Lexus models that updates can sometimes adjust the issues in the ECM.
Before purchasing a reconditioned ECM, would it be worth it, to buy the 2 day Techstream and does that even allow you access to the updates? Im thinking for 60 bucks or so, what do i have to lose at this point. Other option would be dealer and have them look at it, but been down that road before with other vehicles, and its a crap shoot sometimes and you start throwing money at stuff to get that light off and then its not even worth it at that point.
Anybody got any ideas or have seen this come up before? Thanks!
Definition C2610
Shows as ECM/PCM Engine Off Timer Performance,
It means there is a malfunction in the engine control module (ECM) or powertrain control module (PCM) regarding an inability to identify the state of an engine. More specifically, it points to not being able to detect the length of time in which the engine has been turned off.Here are some common triggers of the error code P2610:
- Internal PCM problem
- PCM power or ground circuit problems
- Faulty engine coolant temperature sensor (ECT)
- Engine cooling system problems
- Electrical interference
- Dead battery or poor battery cable connections




