cement head Posted January 3, 2019 Share Posted January 3, 2019 Hey folks, I have a 2015 Mack that is showing the engine shut down light. im getting codes SPN: 4813 FMI 5 AND 4812 FMI4. Both oil system related. Its also throwing 647 fmi 5 for clutch fan. Im thinking wiring. I have cleaned the connections at these actuators and don't see any clear signs of bad wires. Any pointers. Quote Link to comment https://www.bigmacktrucks.com/topic/55187-spn-4812-help/ Share on other sites More sharing options...
Mackpro Posted January 3, 2019 Share Posted January 3, 2019 If MP7, the oil thermostat actuator on the oil filter stand is probably bad and possibly shorting out other sensors. We change a lot of them. Quote Link to comment https://www.bigmacktrucks.com/topic/55187-spn-4812-help/#findComment-412411 Share on other sites More sharing options...
chogora Posted August 4, 2020 Share Posted August 4, 2020 SPN-4813 SPN-3490 SPN-4812 i have those codes in my truck volvo vnl 670 2016 Quote Link to comment https://www.bigmacktrucks.com/topic/55187-spn-4812-help/#findComment-457605 Share on other sites More sharing options...
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