Jason Chernoff Posted October 10, 2021 Share Posted October 10, 2021 Hello.. I have a 2006 vision and the voltage light came on. Gauge shows 14.5 volts in the yellow area. Occasionally throws the shutdown alarm. Would it do that if the voltage is to high? Quote Link to comment https://www.bigmacktrucks.com/topic/68440-truck-voltage-problem/ Share on other sites More sharing options...
mrsmackpaul Posted October 10, 2021 Share Posted October 10, 2021 Sounds like you have a crook ground Paul Quote Link to comment https://www.bigmacktrucks.com/topic/68440-truck-voltage-problem/#findComment-481100 Share on other sites More sharing options...
Mark T Posted October 10, 2021 Share Posted October 10, 2021 That's not a "voltage" light, it's an electronic malfunction light. Truck's trying to tell you it thinks something's wrong with it.....and likely NOT a voltage issue. Quote Link to comment https://www.bigmacktrucks.com/topic/68440-truck-voltage-problem/#findComment-481103 Share on other sites More sharing options...
tjc transport Posted October 10, 2021 Share Posted October 10, 2021 with cruise control off, flip the switch up to "set" and release. then count the times the light flashes. it will be a two number sequence. like 5 flashes, then 4 flashes. that two number sequence will be the fault code. (5-4) you then look up that code to find out what is wrong. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/68440-truck-voltage-problem/#findComment-481110 Share on other sites More sharing options...
Jason Chernoff Posted October 11, 2021 Author Share Posted October 11, 2021 Ok thanks. Thought maybe I’d get away easy and change the alternator Quote Link to comment https://www.bigmacktrucks.com/topic/68440-truck-voltage-problem/#findComment-481142 Share on other sites More sharing options...
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