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DIAGNOSIS SYSTEM (ECM) EC-73 < SYSTEM DESCRIPTION > [MR20DD] C D E F G H I J K L M A EC N P O Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was saved in the 2nd DIAGNOSIS DESCRIPTION : Counter System INFOID:0000000010775062 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 stored in the ECM memory. • When the same malfunction is detected in two consecutive trips, the DTC and the freeze frame data are stored in the ECM memory, and the MIL will come on. • The MIL will turn OFF after the vehicle is driven 3 times (driving pattern B) with no malfunction. The drive is counted only when the recorded driving pattern is met (as stored in the ECM). If another malfunction occurs • The DTC and the freeze frame data will be stored 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- • The 1st trip DTC is not displayed when the self-diagnosis results in OK for the 2nd trip. COUNTER SYSTEM CHART For details about patterns B and C under “Fuel Injection System” and “Misfire”, see “EXPLANATION FOR Relationship Between MIL, DTC, 1st Trip DTC and Driving Patterns for “Misfire <Exhaust Quality De- Priority Items 1 Freeze frame data Misfire — DTC: P0300 – P0304 2 Except the above items 3 1st trip freeze frame data Items Fuel Injection System Misfire Other MIL (turns OFF) 3 (pattern B) 3 (pattern B) 3 (pattern B) DTC, Freeze Frame Data (no display) 80 (pattern C) 80 (pattern C) 40 (pattern A) 1st Trip DTC (clear) 1 (pattern C), *1 1 (pattern C), *1 1 (pattern B) 1st Trip Freeze Frame Data (clear) *1, *2 *1, *2 1 (pattern B) |