Self-diagnosis Mode 1 (without the HDS) Remove the left kick panel (LHD type) or right, kick panel (RHD type). Turn the ignition switch ON (II) and move the ceiling light switch is in the center position. Check self-diagnosis function Mode 1 for a diagnostic trouble code (DTC) by connecting the special tool (A) to the multiplex control inspection connector (MCIC) (B). After about 5 seconds, the ceiling light and ignition key light should come on then blink 0.2 second. This means that you are in Mode 1 of the self-diagnosis function. If the ceiling lights do not blink, check the MCIC ground.