![]() ![]() step number one hook up the computer and check to see what condition the ECM is reading, this rules out a burnt out dash bulb. ![]() ![]() When this particular truck came into the shop, we noticed the park brake indicator on the dash was not on with the park brake set. If anyone of these conditions are not met, the truck will not cooperate. Cruise control, Engine Brakes, Park brake, clutch pedal, throttle pedal, brake pedal, transmission neutral switch and DPF soot load need to be working and reading the condition the ECM requires to initiate the process. The ECM runs numerous checks on the condition of switches it requires to initiate a parked Regen. Usually when the “Regen” button flashes, its an indicator to the driver that a condition isn’t met. In this instance, the driver did everything correctly but the truck wasnt responding. The driver places the truck on a surface away from potential fire hazards, sets the park brake, insures the cruise and engine brake switches are in the off position then holds the “Regen” button like hes supposed to… problem is, the light on the button just flashes and nothing happens. We had a customer come in to us today complaining that the dash lights are calling for the driver to do a parked DPF regeneration but the truck wont let him do it. ![]()
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