|
|
EC-92 < FUNCTION DIAGNOSIS > [QR25DE] ON BOARD DIAGNOSTIC (OBD) SYSTEM Explanation for Driving Patterns for “Misfire <Exhaust Quality Deterioration>”, “Fuel Injection System” <Driving Pattern B> Driving pattern B means the vehicle operation as follows: All components and systems should be monitored at least once by the OBD system. • The B counter will be cleared when the malfunction is detected once regardless of the driving pattern. • The B counter will be counted up when driving pattern B is satisfied without any malfunction. • The MIL will go off when the B counter reaches 3. (*2 in “OBD SYSTEM OPERATION CHART”) <Driving Pattern C> Driving pattern C means the vehicle operation as follows: The following conditions should be satisfied at the same time: Engine speed: (Engine speed in the freeze frame data) ±375 rpm Calculated load value: (Calculated load value in the freeze frame data) x (1 ±0.1) [%] Engine coolant temperature (T) condition: • When the freeze frame data shows lower than 70 °C (158°F), T should be lower than 70°C (158°F). • When the freeze frame data shows higher than or equal to 70 °C (158°F), T should be higher than or equal to 70 °C (158°F). Example: If the stored freeze frame data is as follows: Engine speed: 850 rpm, Calculated load value: 30%, Engine coolant temperature: 80 °C (176°F) To be satisfied with driving pattern C, the vehicle should run under the following conditions: Engine speed: 475 - 1,225 rpm, Calculated load value: 27 - 33%, Engine coolant temperature: more than 70 °C (158 °F) • The C counter will be cleared when the malfunction is detected regardless of vehicle conditions above. • The C counter will be counted up when vehicle conditions above is satisfied without the same malfunction. • The DTC will not be displayed after C counter reaches 80. • The 1st trip DTC will be cleared when C counter is counted once without the same malfunction after DTC is stored in ECM. Relationship Between MIL, DTC, 1st Trip DTC and Driving Patterns Except For “Misfire <Exhaust Quality Deteriora- *4: The DTC and the freeze frame data will not be displayed any longer after *5: When a malfunction is detected for the first time, the 1st trip DTC and the *6: The 1st trip DTC and the 1st trip freeze frame data will be cleared at *7: When the same malfunction is de- tected in the 2nd trip, the 1st trip *8: 1st trip DTC will be cleared when ve- hicle is driven once (pattern C) with- |