P2610Generic code

P2610 Code: ECM/PCM Internal Engine Off Timer Performance

The P2610 code means the computer found an error in its internal clock, the one that measures how long the engine was off. That information is needed for the EVAP system tests and the temperature sensor checks. The car drives normally.

Severity
Low
Can I keep driving?
Yes, no immediate risk
Estimated cost
$0 to $700
Difficulty
Easy
System
Computer and Outputs
Applies to
All OBD2 vehicles

Common in: Toyota

Updated Reviewed by Renzo Chacca

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What the P2610 code means

After you shut off the engine, the computer keeps counting time. At the next start it compares that time with how much the engine cooled down. If the two do not agree, it stores the P2610 code.

It is almost always caused by an unstable power supply (a weak battery, loose terminals or disconnections) or by computer software with known bugs. An actual internal computer failure is uncommon.

P2610 code symptoms

  • Check engine light on.
  • Normally no symptoms.
  • Some monitors do not complete.

Likely causes of the P2610 code

  1. Weak battery or loose terminals. The most frequent cause.
  2. Recent battery disconnection. Confirm it with the tests in the diagnosis section.
  3. Computer software. Some manufacturers release updates.
  4. Internal computer failure. Uncommon.

How to diagnose the P2610 code step by step

  1. Test the battery and the terminals.
  2. Check for technical service bulletins and software updates.
  3. Clear the code and see whether it comes back after several drive cycles.

How to fix the P2610 code

  • Replace the battery if it is weak, and clean the terminals.
  • Update the computer software if a new version exists.
  • Replace the computer only if the fault persists.

Technical reference data

  • Resting voltage of a healthy battery: 12.4 to 12.7 V.
  • Approximate values only: check the manufacturer data for your vehicle.

Brand-specific notes

Start with the battery. A weak battery or a loose terminal is the cheapest thing to fix and the most common reason for the P2610 code. Replacing the computer should be the very last step.

P2610 on Toyota, Lexus, Chevrolet and Ford

Common on these makes, with software updates released for several models.

Frequently asked questions about P2610

Can I drive with a P2610 code?
Yes. The P2610 code does not affect how the car drives.
Does the computer have to be replaced?
Almost never. Test the battery first and look for a software update.
Does it affect the emissions inspection?
It can, because it keeps some monitors from completing.
What does the P2610 code mean?
It means the computer found an error in its internal engine-off timer, the clock that measures how long the engine was off.
How much does it cost to fix P2610?
Roughly $0 to $700. Clearing the code or cleaning the terminals costs little, and a new battery or computer costs more.

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Questions about the P2610 code

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