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Diagnostic Test Mode I — Bulb Check NLEC1363S03 In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the MI bulb. Refer to Diagnostic Test Mode I — Malfunction Warning NLEC1363S04 MI Condition ON When the malfunction is detected or the ECM’s CPU is malfunctioning. OFF No malfunction. + These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS). Diagnostic Test Mode II — Self-diagnostic Results NLEC1363S05 In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MI. A DTC will be used SEF952W A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated NLEC1363S0501 The DTC can be erased from the backup memory in the ECM when the diagnostic test mode is changed from + If the battery is disconnected, the DTC will be lost from the backup memory after approx. 24 hours. + Be careful not to erase the stored memory before starting trouble diagnoses. Diagnostic Test Mode II — Heated Oxygen Sensor 1 Monitor (Front) NLEC1363S06 In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated MI Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition ON Lean Closed loop system OFF Rich ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION SR20DE Malfunction Indicator (MI) (Cont’d) EC-601 |