User Manual - Page 825

For 2001 XTERRA.

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Diagnostic Procedure
NGEC0643
1 INSPECTION START
1. Turn ignition switch OFF.
2. Check heated oxygen sensor 1 (front) harness protector.
SEF505Y
3. Disconnect corresponding heated oxygen sensor 1 (front) harness connector.
WEC545
䊳 GO TO 2.
2 RETIGHTEN HEATED OXYGEN SENSOR 1 (FRONT)
1. Loosen and retighten corresponding heated oxygen sensor 1 (front).
Tightening torque:
40-60N·m (4.1 - 6.1 kg-m, 30 - 44 ft-lb)
䊳 GO TO 3.
DTC P0134, P0154 HEATED OXYGEN SENSOR 1 (FRONT)
(BANK 1)/(BANK 2) (HIGH VOLTAGE)
VG33E
Diagnostic Procedure
EC-825
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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