Self-test function

• If the self-test function is performed, each module diagnoses the system. If a malfunction is detected, the applicable DTC is stored.
• Current malfunction verification and verification after repair can be facilitated by performing the self-test function.

Quick check 

• When the quick check is implemented, the CMDTCs recorded in all the modules can be read out at once regardless of past/current malfunctions. (See DTC INSPECTION .)

On-demand self-test 

• When the on-demand self test is implemented, the current malfunctions of the selected module can be read out. (See DTC INSPECTION .)

• There are two types of the ODDTC self-tests; KOEO (key ON, ignition off) self-test while the ignition is switched ON and engine is stopped, and KOER (key ON, ignition running) self-test while idling and the vehicle is stopped.
• The DTCs which can be read out by the on-demand self test are not stored in the module, but with the M-MDS, the CMDTCs are read out automatically after the ODDTCs read out, and both of the results are displayed.