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ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-65
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
● The time required for each diagnosis varies with road surface conditions, weather, altitude, individual driv-
ing habits, etc.
Zone A refers to the range where the time, required for the diagnosis under normal conditions*, is the
shortest.
Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed
within zone A.
*: Normal conditions refer to the following:
● Sea level
● Flat road
● Ambient air temperature: 20 - 30°C (68 - 86°F)
● Diagnosis is performed as quickly as possible under normal conditions.
Under different conditions [For example: ambient air temperature other than 20 - 30°C (68 - 86°F)], diag-
nosis may also be performed.
Pattern 1:
● The engine is started at the engine coolant temperature of −10 to 35°C (14 to 95°F)
(where the voltage between the ECM terminal 72 and ground is 3.0 - 4.3V).
● The engine must be operated at idle speed until the engine coolant temperature is greater than
70°C (158°F) (where the voltage between the ECM terminal 72 and ground is lower than 1.4V).
Pattern 2:
● When steady-state driving is performed again even after it is interrupted, each diagnosis can be con-
ducted. In this case, the time required for diagnosis may be extended.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH), then release the accelerator pedal
and keep it released for more than 10 seconds. Depress the accelerator pedal until vehicle speed is 90 km/h
(56 MPH) again.
*2: Checking the vehicle speed with GST is advised.
TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)
The following is the information specified in Service $06 of ISO 15031-5.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.
SRT item Self-diagnostic test item DTC
Test value
(GST display)
Test limit
TID CID
CATALYST Three way catalyst function
P0420 01H 01H Max.
P0420 02H 81H Min.
HO2S
Heated oxygen sensor 1
P0133 09H 04H Max.
P1143 0AH 84H Min.
P1144 0BH 04H Max.
P0132 0CH 04H Max.
P0134 0DH 04H Max.
Heated oxygen sensor 2
P0139 19H 86H Min.
P1147 1AH 86H Min.
P1146 1BH 06H Max.
P0138 1CH 06H Max.
HO2S HTR
Heated oxygen sensor 1 heater
P0032 29H 08H Max.
P0031 2AH 88H Min.
Heated oxygen sensor 2 heater
P0038 2DH 0AH Max.
P0037 2EH 8AH Min.
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