User Manual - Page 208

For 2001 XTERRA.

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SEF299U
On Board Diagnosis Logic
NGEC0114
To judge the malfunction, the output from the heated oxygen sen-
sor 1 (front) is monitored to determine whether the rich output is
sufficiently high. The lean output is sufficiently low. When both the
outputs are shifting to the rich side, the malfunction will be
detected.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0132 The maximum and minimum voltages from the sensor
are beyond the specified voltages.
Heated oxygen sensor 1 (front)
Heated oxygen sensor 1 heater (front)
Fuel pressure
Injectors
SEF653Y
SEF654Y
SEF655Y
DTC Confirmation Procedure
NGEC0115
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 5 seconds before
conducting the next test.
TESTING CONDITION:
Always perform at a temperature above 10°C (14°F).
Before performing the following procedure, confirm that
battery voltage is more than 11V at idle.
With CONSULT-II
1) Start engine and warm it up to normal operating temperature.
2) Stop engine and wait at least 5 seconds.
3) Turn ignition switch ON and select HO2S1 (front) P0132 of
HO2S1 (front) in DTC WORK SUPPORT mode with CON-
SULT-II.
4) Touch START.
5) Start engine and let it idle for at least 3.0 minutes.
NOTE:
Never raise engine speed above 3,000 rpm after this step. If
the engine speed limit is exceeded, return to step 5.
6) When the following conditions are met, TESTING will be dis-
played on the CONSULT-II screen. Maintain the conditions
continuously until TESTING changes to COMPLETED. (It
will take approximately 50 seconds or more.)
ENG SPEED 1,200 - 3,150 rpm
Vehicle speed Less than 100 km/h (62 MPH)
B/FUEL SCHDL 3.5 - 15 msec
Selector lever Suitable position
DTC P0132 HEATED OXYGEN SENSOR 1 (FRONT)
(RICH SHIFT MONITORING)
KA24DE
On Board Diagnosis Logic
EC-208
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