Join Date: Apr 1999
Location: Justin,Texas, Republic of TEXAS (USA)
I believe the software on the 2005-2007 reduces brake current to a minimal amount with zero vehicle speed and ramps it up to normal amount as you speed up to 12-18 mph. One of my 2006 trucks has factory controller and I can roll the wheels with some effort if someone depresses pedal and I spin a jacked up trailer wheel.
The other thing to check is what is the voltage on the ground side with brakes applied full with manual lever. IF you see over 0.3 V on the ground then clean/repair grounds. Ohm meter inspection of grounds is NOT ACCURATE. One strand of wire connected will show 0.0 to 0.4 ohms but you will have very low current flow (and high voltage reading) on the ground side when the circuit load is present.
2015 F350 Platinum Max Tow What a beast with the 4.30 gears!
2006 F450 CC Hauler bed 4x2 6.0 L 6.0 auto, Lariat, 4.30 r/a, SCT, 4in exh. 103K New heads to repair diesel in coolant, 148K.
2006 F350 Lariat CC Dually 4X2, 6.0 auto 4.10 LS, SCT, airbags, 4 in. exh. 154K Rebuilt engine to repair damage from burned piston. One head to fix fuel in oil problem.
36 feet on the floor Elite/Outlaw LQ horse trailer.
35+5 foot double tandem axle flatbed trailer.
36 foot double tandem axle flatbed trailer
36 foot Platinum 6 horse LQ, side load, full width back tack
2003 EB Expedition 171K (no engine repairs, gas burners are the new longevity leaders)
2004 Volvo V70R AWD-high miler in fleet, 253K (no engine repairs) Hail totaled it but I kept it. Looks like a golf ball now.
Suzuki Carry KEI truck, 660cc 3 cyl DOHC EFI 4X4 5 speed RHD. Sort of a Smart Car sized pickup. Eats Gators and Mules for lunch.