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The system self-test diesel models

general information

When you register failure of input elements or actuator control system of the diesel engine ECM to minimize the effect of errors makes the connection activation feedback function, while holding up the two-digit fault code in the memory of the processor.

The principle of operation of the system self-test of the diesel engine

A - Clear processor memory B - Battery K - Communication Terminals L - Communication Terminals	P - terminal output codes Q - Terminal engine diagnostics R - Ground terminal S - Ground terminal

Code reading and clearing processor memory

Read the faults and clearing processor memory can be made using a special scanner connected to the fixed to the air cleaner housing diagnosis connector.

Alternatively, the code can be highlighted control lamp MIL (Check Engine) after the grounding terminals Q diagnostic socket. To clear the memory of the processor ground terminal A or 20 ÷ 30 seconds, disconnect the wire from the battery.