Circuit description

The soak timer starts to operate after ignition switch has been turned to OFF. After a certain period of time has elapsed since IG SW OFF, the soak timer activates the ECM, and the inspection for malfunction is performed. This process can be executed only after the engine has stopped. The soak timer is integrated into the ECM.

DTC DETECTION CONDITION

DTC No.	DTC detection conditions	Faulty part
P2610	When any of the following conditions is met (2 trip detection logic): Timer diagnosis When [(engine ECM counter - soak timer IC counter)/engine ECM counter] is 0.24 or more. Full count diagnosis When the soak timer IC counter is not 1023. Timer diagnosis When the setting time written in the soak timer IC is different from the value that was read in. Full count diagnosis during wake-up When the engine ECM counter is 1.636 seconds or less and the soak timer IC counter is 1023. Wake-up diagnosis Recorded number of wake-up count is smaller than that of the wake-up command.	ECM