Entering Diagnostic Mode (Self Diagnosis)

SELF-DIAGNOSTIC PROCEDURE

CAUTION: During displaying code No. in self-diagnosis mode (mode III), if the other diagnostic mode should be done. make sure to write down the malfunctioning code No. before turning diagnostic mode selector on E.C.U. fully clockwise, or select the diagnostic mode after turning switch "OFF". Otherwise self-diagnosis information stored in E.C.U. memory until now would be lost.

For further information, refer to Diagnostic Modes.