At registration of refusal of entrance elements or actuation mechanisms of a control system of diesel engine ECM for the purpose of minimisation of effect of an error makes connection activation of function of a feedback, simultaneously bringing a two-place code of malfunction in memory of the processor.
Principle of functioning of system of self-diagnostics of the diesel engine
And — Clearing of memory of the processor In — The Battery To — The Communication plug L — The Communication plug
Р — the Plug of a conclusion of codes Q — the Plug of diagnostics of the engine R — the grounding Plug S — the grounding Plug
Reading of codes and clearing of memory of the processor
Reading of codes of malfunctions and clearing of memory of the processor can be made by means of the special scanner connected to fixed on case of an air cleaner to a diagnostic socket.
Alternatively codes can be highlighted control lamp MIL (Check up the engine) after grounding of plug Q of a diagnostic socket. For clearing of memory of the processor earth the plug And, or on 20 ÷ 30 seconds disconnect a negative wire from the battery.