car wont start turn key nothing lights come on battery good
Hi there
This code is for the auto shut down relay being open. This should not keep the engine from cranking, but will keep it from starting. One of the sensors, usually cam or crank sensor isn't reading properly, this will cause the asd relay to open so it won't start.
P0688 DODGE - Auto Shutdown Relay Control Circuit Open Read more: https://www.autocodes.com/p0688_dodge.html
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