The diode is there for 1 purpose,IF there is a malfunction in the electric brake solenoids 12V power cannot flow backwards to the CJB which could cause a catastrophic failure of the CJB.
With the Tow Pro when you are pressing the manual button to get brake lights is the blue "breathing" led pulsing???? IF SO,read the manual,this means the Tow Pro is in sleep mode as there is no trailer connected.
Connect a trailer and see if you get manual break lights.You will also note the Tow Pro does not glow red like a normal EBC without a trailer connected.
Im yet to connect an electric braked trailer up to mine to calibrate,can somebody with a trailer easy to connect up and confirm for these people,plus the one that contacted me via PM that the brake lights will operate manually when connected,plus the red LED on the knob lights with brake application.
I was concerned when I wired mine,when I read the book of words again I wasnt too bothered,waiting to connect up and calibrate
.
Thanks
Andrew
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