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Diagnostic Test KEY and ENG. Function Explanation of Function Mode I Ignition switch in Engine stopped BULB CHECK This function checks the MIL bulb for damage (blown, Engine running MALFUNCTION This is a usual driving condition. When a malfunction is I Coolant overtemperature enrichment protection I “Misfire (Possible three way catalyst damage)” I “Closed loop control” I Fail-safe mode Diagnostic Test Mode I — Bulb Check NBEC0032S03 In this mode, the MIL on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to Diagnostic Test Mode I — Malfunction Warning NBEC0032S04 MIL Condition ON When the malfunction is detected or the ECM’s CPU is malfunctioning. OFF No malfunction. OBD System Operation Chart NBEC0033 RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS NBEC0033S01 I When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are I When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are I The MIL will go off after the vehicle is driven 3 times with no malfunction. The drive is counted only when I The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A) I The 1st trip DTC is not displayed when the self-diagnosis results in “OK” for the 2nd trip. SUMMARY CHART NBEC0033S02 Items Fuel Injection System Misfire Other MIL (goes off) 3 (pattern B) 3 (pattern B) 3 (pattern B) DTC, Freeze Frame Data (no 80 (pattern C) 80 (pattern C) 40 (pattern A) 1st Trip DTC (clear) 1 (pattern C), *1 1 (pattern C), *1 1 (pattern B) GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION Malfunction Indicator Lamp (MIL) (Cont’d) EC-75 |