Timer Diagnosis (During Soaking): Notes
Wake-up at the predetermined interval until five hours have passed after the ignition switch is OFF, and compare the counter in soaking timer IC with the counter in ECM. Judge as malfunction if the counter in soaking timer IC is counted up to maximum value (1023 count) when the counter in ECM is 1637 ms, or if the counter in soaking timer IC is not counted up to maximum value (1023 count) when the counter in ECM is 2455 ms.