Emergency Running Mode

Detroit™ Gen 5 Heavy Duty engines are equipped with Detroit Diesel Electronic Control® (DDEC®) which monitors and controls the Detroit™ powertrain functions and operation. As soon as an engine fault is detected, it is evaluated and one of the following measures is initiated.

• DDEC® will turn on an instrument panel indicator when certain predetermined conditions are present.
• If the fault is serious enough to impair normal operation, DDEC^®switches over to a limp mode. The limp speed is dependent on engine control parameters and could be as low as 1000 rpm. This allows the operator to safely move the vehicle to a service location or a safe stopping area.

To prevent possible serious equipment damage, have any faults corrected immediately by an authorized Detroit™ service outlet.