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ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-523 < FUNCTION DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O tified codes can be identified by using the CONSULT-III or GST. A DTC will be used as an example for how to A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated How to Erase Diagnostic Test Mode II (Self-diagnostic Results) The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to "How OBD System Operation Chart INFOID:0000000005273489 RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS • When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are saved in the ECM memory. • When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are saved in the ECM memory, and the MIL will come on. For details, refer to • The MIL will go off after the vehicle is driven 3 times with no malfunction. The drive is counted only when the recorded driving pattern is met (as saved in the ECM). If another malfunction occurs while counting, the • The DTC and the freeze frame data will be saved until the vehicle is driven 40 times (driving pattern A) with- out the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and Fuel Injec- PBIB3005E |