HELP!!!!!!!
 

ok guys i have an 04 3500 4x4 dually automatic. And while driving down the road all the gauges flicker and then stop working, then all the warning lights flash and gauges start working again, also while driving truck lurches. the engine codes are p2509 ecm/pcm power input signal, and p1652 communications buss. i talked to a mechanic and was told to check/ clean all the grounds i did this. And this still did not help! Any help or input would be greatly appreciated thanks:tu:

Figure it out cause my gauges do the same crap but no CEL or drivablity issues

Pull your main harness off the ECM and check it do the wiggle test while running and see if that makes it do it.

hey thanks for all the input i got it fixxed i just had to plug and unplug and wiggle some harnesses and clean all the grounds