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On Board Diagnosis Logic
NGEC0686
Malfunction is detected when the current amperage in the heated
oxygen sensor 2 heater (rear) circuit is out of the normal range.
[An improper voltage drop signal is sent to ECM through the heated
oxygen sensor 2 heater (rear).]
POSSIBLE CAUSE
NGEC0686S01
쐌 Harness or connectors
(The heated oxygen sensor 2 heater (rear) circuit is open or
shorted.)
쐌 Heated oxygen sensor 2 heater (rear)
SEF058Y
DTC Confirmation Procedure
NGEC0687
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that bat-
tery voltage is between 10.5V and 16V at idle.
With CONSULT-II
1) Turn ignition switch ON and select “DATA MONITOR” mode
with CONSULT-II.
2) Start engine.
3) Drive vehicle at a speed of more than 70 km/h (43 MPH) for 2
consecutive minutes.
4) Stop vehicle and let engine idle for at least 6 seconds.
5) If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-880.
With GST
Follow the procedure “With CONSULT-II”.
DTC P0141, P0161 HEATED OXYGEN SENSOR 2 HEATER
(REAR) (BANK 1)/(BANK 2)
VG33E
On Board Diagnosis Logic
EC-877
GI
MA
EM
LC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
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