Trouble Display and "BACK-UP"

SELF-DIAGNOSIS AND "BACK-UP" FUNCTION
The control unit always uses the signals input from each sensor to diagnose whether there is any abnormality inside the system. If it judges that there is an abnormality, it lights up the Engine Control warning light inside the cluster meter to warn the drive of the abnormality.

At the same time, it carries out a back-up function to move the system to a safe zone where there is no excessive load on the engine.
By using the diagnostic switch, the Diagnosis Display Code is displayed on the diagnosis light (Engine Control warning light and Overheat warning light), and trouble-shooting is carries out.







Trouble display and "back-up"
If a failure occurs in the MD-TICS system (refer to Table 1 "Failure Judgement Conditions"), the Engine Control warning light comes on and displays the occurrence of a failure. [User mode]

At the same time, the back-up system is actuated to keep the system in the safety zone so that there is no excessive load on the engine, while making it possible to continue to travel. Table 2 gives details of the back-up operation.