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SEF189Y
DTC Confirmation Procedure
NFEC0900
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
WITH CONSULT-II
NFEC0900S01
1) Turn ignition switch “ON” and select “DATA MONITOR” mode
with CONSULT-II.
2) Start engine and drive vehicle at a speed of more than 70 km/h
(43 MPH) for 2 consecutive minutes.
3) Stop vehicle with engine running.
4) Let engine idle for 1 minute.
5) Maintain the following conditions for at least 5 consecutive
seconds.
ENG SPEED 1,300 - 3,100 rpm
VHCL SPEED SE 64 - 130 km/h (40 - 80 MPH)
B/FUEL SCHDL 0.5 - 6.4 msec
COOLAN TEMP/S More than 70°C (158°F)
Selector lever Suitable position
6) If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-253.
SEC903C
Overall Function Check
NFEC0901
Use this procedure to check the overall function of the heated oxy-
gen sensor 2 circuit. During this check, a 1st trip DTC might not be
confirmed.
WITH GST
NFEC0901S01
1) Start engine and drive vehicle at a speed of more than 70 km/h
(43 MPH) for 2 consecutive minutes.
2) Stop vehicle with engine running.
3) Set voltmeter probes between ECM terminal 88 (HO2S2 bank
1 signal) or 90 (HO2S2 bank 2 signal) and engine ground.
4) Check the voltage when racing up to 4,000 rpm under no load
at least 10 times.
(Depress and release accelerator pedal as soon as possible.)
The voltage should be below 1.4V during this procedure.
5) If NG, go to “Diagnostic Procedure”, EC-253.
DTC P0138, P0158 HO2S2
DTC Confirmation Procedure
EC-250
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