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P2610 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


The P2610 code is defined as ECM/PCM Internal Engine Off Timer Performance.


The P2610 code is the OBD-2 general code for a vehicle’s Engine Control Module (ECM). It detects the proper functioning of internal ECM or (Powertrain Control Module) PCM engine off-timer.


The following are some common causes of the P02610 code

  • Your vehicle’s ECM monitors the internal timer of the ECM to identify when the engine is off. It sets the code if the error occurs continuously for two critical cycles in a row.
  • Your vehicle’s ECM or PCM cannot detect the engine’s on or off time while programming a new drive cycle.


Some of the common symptoms for the code P2610 are listed below

  • Your vehicle’s Check Engine Light (CEL) will turn on and set the P2610 code in ECM or PCM memory as an error code.
  • Your vehicle will not drive any differently in most cases, and you will not be able to recognize this code while driving, as there shouldn’t be any significant difference.
  • Your vehicle’s engine ECM or PCM will not clear the internal emission monitors, as it will not complete a drive cycle.
  • Your vehicle will fail any kind of emission testing because of the drive cycles and will not clear the monitors.


Since this code cannot be recognized or identified while driving, we suggest you take your car to a qualified mechanic or garage that can test and fix this code.

  • Try scanning for codes and document all the codes thrown as errors in the ECM or PCM memory. Look at your vehicle’s freeze frame data for the error before clearing all the codes; drive for a while to check if the codes show as errors.
  • Check for Original Equipment Manufacturer (OEM) repair bulletins for P2610 code to check if an ECM or PCM reprogramming is warranted.
  • Clear the code and check if the error appears after two critical cycles.
  • Thoroughly test if the critical power to your vehicle’s ECM or PCM turns on and off with the vital cycle.

Common mistakes

  • Clearing your vehicle’s ECM or PCM memory codes before checking the freeze frame data for your vehicle’s main error.
  • Not clearing your vehicle’s ECM or PCM codes after fixing the issue related to the codes.
  • Unnecessarily replacing or reprogramming a functional ECM or PCM without checking if it is faulty.
  • Not properly checking for any OEM bulletins before replacing or reprogramming your vehicle’s ECM or PCM.

How serious is this?

The P2610 code indicates the ECM or PCM not detecting the duration for which the engine was not running. This is relevant to complete a drive cycle for your vehicle’s internal test monitors. This may cause incomplete monitors, and your car will fail an emission test.

This code may not stop your car from working but will certainly show up in any emission test and can cause hefty fines depending upon the location in which you are driving.  So, get this code checked and fixed as soon as you get the check engine light, and take your vehicle to the nearest qualified mechanic or garage.

What repairs can fix the code?

repair manuals

  • Replace the ECM or PCM if it is found to be faulty
  • Reprogram the ECM or PCM in case there is an OEM bulletin for the P2610 code
  • Repair the wiring to the ECM or PCM for any short from the critical power to battery power.

Related codes


The P2610 code is thrown by your vehicle’s ECM or PCM’s inability to indicate that the ECM or PCM has not completed a drive cycle. This is usually because the internal timer of your vehicle’s ECM or PCM failed and cannot detect the engine’s off time.

P2610 Code – What Does It Mean & How To Fix It