Fire commander detroit diesel code#
The ECM illuminatesthe CEL (2) and SEL (3) and stores a malfunction code if a potentially engine damaging fault is detected. This indicates the problem should be diagnosed as soon as possible. The CEL (2) is illuminated and a code is stored if an electronic system fault occurs. The CEL (2) is an amber light and the SEL (3) is a red light. Instrument panel warning lights (see Figure 5-5) the Check Engine Light(CEL) (2) and the Stop Engine Light (SEL) (3) warn the engine operator. The information is used to regulate engine andvehicle performance, provide diagnostic information, and activate the engine protection system. Sensors provide information to the ECM regarding various engine and vehicle performance characteristics. System diagnostic checks are made at ignition on and continue throughout all engineoperating modes. OPERATIONThe engine-mounted ECM includes control logic to provide overall engine management. Information for problem identification and problem solving isenhanced by the detection of faults, retention of fault codes and separation of active from inactive codes. The ECM continuously performs self diagnostic checks and monitors the other system components. The purpose of this feature is to provide information for problem identification and problem solving in the form of acode. Detroit Diesel DDEC IV On-Highway (A 629 540 50 00)ĭIAGNOSTICSDiagnostics is a standard feature of the DDEC system.