84 svo can’t retrieve codes Sept 23, 2018 21:32:27 GMT -5 via Tapatalk Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by zify on Sept 23, 2018 21:32:27 GMT -5 For koeo ecu tests, other than jumping the test connector pins is there anything else required to get codes from the ecu? I’m using the actron eec-iv reader that blinks the light for codes. The light just stays continuously lit and never flashes a code after turning the ignition on. I read in a forum that the premium switch has to be turned on. Is this correct? Would like to switch to pimpx but trying to make sure I’m good prior to installing a new ecu. Thanks.