Dieselfixer Posted April 29, 2015 Share Posted April 29, 2015 Hi all i have a 2001 RD 688S with a fault code of 5-3. As far as I can figure out it is a code for the shutdown light but does anyone know what will trigger this code? Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/39855-fault-code-5-3/ Share on other sites More sharing options...
Keffer inc Posted April 29, 2015 Share Posted April 29, 2015 When you turn your truck on in the morning, does the "Shut Off" light come on for a second? This is the bulb check that happens when the key comes on, if it doesn't light up at all, its burned out and probably what triggered the code. Same thing on my Electronic Malfunction light, I pull it out because there is a code I can't get rid of, when I plug it back in to check codes, I get my normal 4-2 fan clutch, and then 5-5 which is "Electronic lamp fault". Hopefully an easy bulb change. Quote Link to comment https://www.bigmacktrucks.com/topic/39855-fault-code-5-3/#findComment-288276 Share on other sites More sharing options...
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