Chart A-1, No "Service Engine Soon" Light: Notes
There should always be a "SERVICE ENGINE SOON" (SES) light when ignition is on and engine stopped. The ECM controls the SES light and turns it on by providing a ground path through circuit No. 419.
There should always be a "SERVICE ENGINE SOON" (SES) light when ignition is on and engine stopped. The ECM controls the SES light and turns it on by providing a ground path through circuit No. 419.