Nissan Primera P11. Manual — part 241
On Board Diagnosis Logic
NCEC0122
To judge the malfunction of heated oxygen sensor 1 (front), this
diagnosis measures response time of heated oxygen sensor 1
(front) signal. The time is compensated by engine operating (speed
and load), fuel feedback control constant, and heated oxygen sen-
sor 1 (front) temperature index. Judgment is based on whether the
compensated time (heated oxygen sensor 1 (front) cycling time
index) is inordinately long or not.
DTC No.
Malfunction is detected when ...
Check Items (Possible Cause)
P0133
0133
I
The response of the voltage signal from the sensor takes
more than the specified time.
I
Harness or connectors
(The sensor circuit is open or shorted.)
I
Heated oxygen sensor 1 (front)
I
Heated oxygen sensor 1 (front) heater
I
Fuel pressure
I
Injectors
I
Intake air leaks
I
Exhaust gas leaks
I
PCV
I
Mass air flow sensor
DTC Confirmation Procedure
NCEC0123
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 9 seconds
before conducting the next test.
TESTING CONDITION:
I
Always perform at a temperature above −10°C (14°F).
I
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 9 seconds.
3)
Turn ignition switch “ON” and select “HO2S1 (B1) P0133” of
“HO2S1” in “DTC WORK SUPPORT” mode with CONSULT-II.
4)
Touch “START”.
5)
Start engine and let it idle for at least 3.5 minutes.
NOTE:
Never raise engine speed above 3,200 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 20 seconds.)
SEF010V
SEF831Y
SEF832Y
SEF658Y
DTC P0133 HEATED OXYGEN SENSOR 1
(FRONT) (RESPONSE MONITORING)
SR20DE
On Board Diagnosis Logic
EC-163
ENG SPEED
1,800 - 2,900 rpm (CVT)
2,000 - 3,100 rpm (M/T)
Vehicle speed
80 - 120 km/h (50 - 75 MPH)
B/FUEL SCHDL
4.5 - 14.0 msec (CVT)
3.5 - 12.0 msec (M/T)
Selector lever
Suitable position
If “TESTING” is not displayed after 5 minutes, retry from
step 2.
7)
Make sure that “OK” is displayed after touching “SELF-DIAG
RESULTS”.
If
“NG”
is
displayed,
refer
to
“Diagnostic
Procedure”, EC-SR-166.
Overall Function Check
NCEC0124
Use this procedure to check the overall function of the heated oxy-
gen sensor 1 (front) circuit. During this check, a 1st trip DTC might
not be confirmed.
Without CONSULT-II
1)
Start engine and warm it up to normal operating temperature.
2)
Set voltmeter probes between ECM terminal 62 (Heated oxy-
gen sensor 1 (front) signal) and engine ground.
3)
Check the following with engine speed held at 2,000 rpm con-
stant under no load.
I
Malfunction indicator goes on more than five times within 10
seconds in Diagnostic Test Mode II (HEATED OXYGEN SEN-
SOR 1 (FRONT) MONITOR).
4)
If NG, go to “Diagnostic Procedure”, EC-SR-166.
SEF011X
DTC P0133 HEATED OXYGEN SENSOR 1
(FRONT) (RESPONSE MONITORING)
SR20DE
DTC Confirmation Procedure (Cont’d)
EC-164
Wiring Diagram
NCEC0125
YEC084A
DTC P0133 HEATED OXYGEN SENSOR 1
(FRONT) (RESPONSE MONITORING)
SR20DE
Wiring Diagram
EC-165
Diagnostic Procedure
NCEC0126
1
RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
SEF202X
©
GO TO 2.
2
RETIGHTEN HEATED OXYGEN SENSOR 1 (FRONT)
Loosen and retighten heated oxygen sensor 1 (front).
Tightening torque:
40 - 60 N
⋅
m (4.1 - 6.1 kg-m, 30 - 44 ft-lb)
©
GO TO 3.
3
CHECK EXHAUST AIR LEAK
1. Start engine and run it at idle.
2. Listen for an exhaust air leak before three way catalyst.
SEF099P
OK or NG
OK
©
GO TO 4.
NG
©
Repair or replace.
4
CHECK FOR INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK
©
GO TO 5.
NG
©
Repair or replace.
Intake manifold
collector
Engine
ground
DTC P0133 HEATED OXYGEN SENSOR 1
(FRONT) (RESPONSE MONITORING)
SR20DE
Diagnostic Procedure
EC-166
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