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ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-73
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
EXPLANATION FOR DRIVING PATTERNS FOR “MISFIRE <EXHAUST QUALITY DETERIORA-
TION>”, “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 MI 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.
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