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SEF663Y
SEF664Y
SEF665Y
DTC Confirmation Procedure
NGEC0157
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch OFF and wait at least 5 seconds before conducting the
next test.
TESTING CONDITION:
Open engine hood before conducting following procedure
With CONSULT-II
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch OFF and wait at least 5 seconds.
3) Turn ignition switch ON.
4) Select “DATA MONITOR” mode with CONSULT-II.
5) Make sure the “COOLANT TEMP/S” is more then 70°C
(158°F).
6) Select “HO2S1 (B1) P0138”,of“HO2S2” in “DTC WORK SUP-
PORT” mode with CONSULT-II.
7) Start engine and follow the instructions of CONSULT-II.
8) Make sure the “OK” is displayed after touching “SELF-DIAG
RESULTS”.
If NG is displayed, refer to “DIAGNOSTIC PROCEDURE”,
EC-251.
If “CAN NOT BE DIAGNOSED” is displayed, perform the fol-
lowing.
a) Stop engine and cool down “COOLANTTEMP/SE” to less then
70°C (158°F).
b) Turn ignition switch ON.
c) Select “DATA MONITOR” mode with CONSULT-II.
d) Start engine.
e) Perform from step 6) again when the “COOLANT TEMP/S”
reach to 70°C (158°F).
DTC P0138 HEATED OXYGEN SENSOR 2 (REAR)
(MAX. VOLTAGE MONITORING)
KA24DE
On Board Diagnosis Logic (Cont’d)
EC-248
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