User Manual - Page 873

For 2001 XTERRA.

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5 CHECK HO2S2 (REAR) CONNECTORS FOR WATER
Check heated oxygen sensor 2 (rear) connector and harness connector for water.
Water should not exist.
OK or NG
OK (With CONSULT-II) GO TO 6.
OK (Without CONSULT-
II)
GO TO 7.
NG Repair or replace harness or connectors.
6 CHECK HEATED OXYGEN SENSOR 2 (REAR)
With CONSULT-II
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. Select FUEL INJECTION in ACTIVE TEST mode, and select HO2S2 (B1)/(B2) as the monitor item with CONSULT-
II.
4. Check HO2S2 (B1)/(B2) at idle speed when adjusting FUEL INJECTION to ±25%.
SEF989RD
HO2S2 (B1)/(B2) should be above 0.62V at least once when the FUEL INJECTION is +25%.
HO2S2 (B1)/(B2) should be below 0.48V at least once when the FUEL INJECTION is 25%.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
OK or NG
OK GO TO 9.
NG GO TO 8.
DTC P0140, P0160 HEATED OXYGEN SENSOR 2 (REAR)
(BANK 1)/(BANK 2) (HIGH VOLTAGE)
VG33E
Diagnostic Procedure (Contd)
EC-873
GI
MA
EM
LC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
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