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SEF217U Malfunction Indicator Lamp (MIL) The malfunction indicator lamp is located on the instrument panel. The malfunction indicator lamp will light up when the ignition I If the malfunction indicator lamp does not light up, refer to EL 2. When the engine is started, the malfunction indicator lamp ON BOARD DIAGNOSTIC SYSTEM FUNCTION The on board diagnostic system has the following four functions. Diagnostic Test Mode I 1. BULB CHECK : This function checks the bulb for damage (blown, open circuit, etc.) of the malfunction indicator lamp. 2. MALFUNCTION WARNING : This is a usual driving condition. When a malfunction is detected twice in two consecutive driving cycles (2 trip detection logic), the MIL will I “Misfire (possible three way catalyst damage)” I “Closed loop control” I Fail-safe mode Diagnostic Test Mode II 3. SELF-DIAGNOSTIC RESULTS : This function allows DTCs and 1st trip DTCs to be read. 4. HEATED OXYGEN SENSORS 1 MONI- : This function allows the fuel mixture condition (lean or rich), monitored by heated oxygen sensors 1 monitor (front), to be read. MIL Flashing without DTC If the ECM is in Diagnostic Test Mode II, the MIL may flash when the engine is running. In this case, check Condition Diagnostic Test Mode I Diagnostic Test Mode II Ignition switch in “ON” posi- tion Engine stopped BULB CHECK SELF-DIAGNOSTIC RESULTS Engine running MALFUNCTION WARNING HEATED OXYGEN SENSOR 1 MONI- TOR (FRONT) GI MA EM LC FE AT PD FA RA BR ST RS BT HA EL IDX ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION EC-65 |