Acoombs
02-17-2008, 04:01 PM
got a code on the c4500 today p0703 which is brake switch B Malfunction. The transmission isnt downshifting like it should when slowing to a stop. Is this the brake switch on the pedal causing the problem.
Thanks.
HEADWRENCH
02-19-2008, 09:04 PM
No ideas?
Also have a friend with the same problem on his C4500,no code but the same problem,in fact he just called me,any help would be great guys.
Acoombs
02-19-2008, 09:13 PM
I found the code with EFI live. I didnt set a ses light, were going to replace the brake switch and see if that works Ill let you know.
HEADWRENCH
02-19-2008, 09:18 PM
I found the code with EFI live. I didnt set a ses light, were going to replace the brake switch and see if that works Ill let you know.
Have they been having trouble with the brake light switch or should i ask is the brake lights on the rear of the truck also inoperative?