Question

What is the repair procedure for the engine code P1682 on my 2010 Chevrolet Express G4500? Cranks do not run

Answer 1

P1682 Ignition 1 switch circuit 2

This code condition will create a no start, but will have crank, if you have crank and no start the ECM is suspected of not receiving power.in the engine fuse relay box you will have to test the PWR/TRN relay pin for power, where it receives power from the ECM BAT fuse , if power present , the ECM is checked for a ground signal from PWR/TRN relay pin 86 , if the ground is not present the ECM is faulty

Answer 2

P1682 CHEVROLET Code - Ignition 1 Switch Circuit 2

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