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Discussion Starter · #1 ·
Got a Service Engine Soon light and would like to pull the code. I'm getting +12V power from the OBD connector but my scanner can not communicate. All the wiring in the back of the connector looks secure. Any ideas?
 

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How old is your battery? If it is weak your tester might not read the Truck..
 

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did you Load test it?
 
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