QB3 KOER DTC P2610: Electronic Control Module (ECM)/Powertrain Control Module (Pcm) Internal Engine Off Timer Performance

Clear the DTCs.
Key ON, engine running.
Get vehicle to stabilized coolant temperature.
Key in OFF position.
Allow the engine to cold soak long enough for the coolant temp to drop at least 16.7°C (30°F), (turning the key on then off without an engine start for the purpose of checking the coolant temperature does not affect the test results).
Is DTC P2610 present?
- Yes: GO to QB5 .
- No: Unable to duplicate the condition.
  REFER to SYMPTOM CHARTS , Pinpoint Test QT , to continue diagnosis.