Infiniti I35 (A33). Manual - part 231
SEF666Y
DTC Confirmation Procedure
NHEC0908
SEF667Y
SEF668Y
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
NHEC0908S01
TESTING CONDITION:
I
Open engine hood before conducting following proce-
dure.
I
For the best results, perform “DTC WORK SUPPORT” at
a temperature of 0 to 30°C (32 to 86°F).
1)
Start engine and warm it up to the normal operating tempera-
ture.
2)
Turn ignition switch OFF and wait at least 10 seconds.
3)
Start engine and keep the engine speed between 3,500 and
4,000 rpm for at least 1 minute under no load.
4)
Let engine idle for 1 minute.
5)
Select “HO2S2 (B1) P0139” or “HO2S2 (B2) P0159” of
“HO2S2” in “DTC WORK SUPPORT” mode with CONSULT-II.
6)
Follow the instruction of CONSULT-II.
7)
Make sure that “OK” is displayed after touching “SELF-DIAG
RESULTS”.
If NG is displayed, refer to EC-269, “Diagnostic Procedure”.
If “CAN NOT BE DIAGNOSED” is displayed, perform the fol-
lowing.
a)
Turn ignition switch OFF and leave the vehicle in a cool place
(soak the vehicle).
b)
Turn ignition switch ON and select “COOLANTEMP/S” in
“DATA MONITOR” mode with CONSULT-II.
c)
Start
engine
and
warm
it
up
while
monitoring
“COOLANTEMP/S” indication on CONSULT-II.
d)
When “COOLANTEMP/S” indication reaches to 70°C (158°F),
go to step 3.
SEC903C
Overall Function Check
NHEC0909
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
NHEC0909S01
1)
Start engine and warm it up to the normal operating tempera-
ture.
2)
Turn ignition switch OFF and wait at least 10 seconds.
3)
Start engine and keep the engine speed between 3,500 and
4,000 rpm for at least 1 minute under no load.
4)
Let engine idle for 1 minute.
5)
Set voltmeter probes between ECM terminal 88 (HO2S2 bank
1 signal) or 90 (HO2S2 bank 2 signal) and ground.
6)
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 change at more than 0.06V for 1 sec-
ond during this procedure.
If the voltage can be confirmed in step 4, step 5 is not
necessary.
7)
Keep vehicle at idling for 10 minutes, then check the voltage.
Or check the voltage when coasting from 80 km/h (50 MPH)
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0139, P0159 HO2S2
DTC Confirmation Procedure
EC-265