Infiniti I35 (A33). Manual — part 224
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SEF338Z
SEF339Z
SEF658Y
WITH CONSULT-II
NHEC0884S01
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 (B1)/(B2) P0133/
P0153” of “HO2S1” in “DTC WORK SUPPORT” mode with
CONSULT-II.
4)
Touch “START”.
5)
Start engine and let it idle for at least 3 minutes.
NOTE:
Never raise engine speed above 3,600 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 40 to 50 seconds.)
ENG SPEED
1,200 - 3,100 rpm
Vehicle speed
More than 80 km/h (50 MPH)
B/FUEL SCHDL
2.5 - 12 msec
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-240.
SEC902C
Overall Function Check
NHEC0885
Use this procedure to check the overall function of the heated oxy-
gen sensor 1 circuit. During this check, a 1st trip DTC might not be
confirmed.
WITH GST
NHEC0885S01
1)
Start engine and warm it up to normal operating temperature.
2)
Set voltmeter probes between ECM terminal 91 (HO2S1 bank
1 signal) or 92 (HO2S1 bank 2 signal) and ground.
3)
Check the following with engine speed held at 2,000 rpm con-
stant under no load.
I
The voltage fluctuates between 0 to 0.3V and 0.6 to 1.0V more
than 5 times within 10 seconds.
1 time: 0 - 0.3V
→
0.6 - 1.0V
→
0 - 0.3V
2 times: 0 - 0.3V
→
0.6 - 1.0V
→
0 - 0.3V
→
0.6 - 1.0V
→
0
- 0.3V
4)
If NG, go to “Diagnostic Procedure”, EC-240.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0133, P0153 HO2S1
DTC Confirmation Procedure (Cont’d)
EC-237
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Wiring Diagram
NHEC0886
BANK 1
NHEC0886S01
MEC537D
SEC107D
DTC P0133, P0153 HO2S1
Wiring Diagram
EC-238
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BANK 2
NHEC0886S02
MEC538D
SEC108D
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0133, P0153 HO2S1
Wiring Diagram (Cont’d)
EC-239
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Diagnostic Procedure
NHEC0887
1
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two engine ground screws.
Refer to “Ground Inspection”, EC-160.
SEC047D
OK or NG
OK
©
GO TO 2.
NG
©
Repair or replace ground connections.
2
RETIGHTEN HEATED OXYGEN SENSOR 1
Loosen and retighten corresponding heated oxygen sensor 1.
Tightening torque:
40 - 60 N·m (4.1 - 6.1 kg-m, 30 - 44 ft-lb)
©
GO TO 3.
3
CHECK FOR EXHAUST GAS LEAK
1. Start engine and run it at idle.
2. Listen for an exhaust gas leak before three way catalyst (manifold).
SEC502D
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.
DTC P0133, P0153 HO2S1
Diagnostic Procedure
EC-240
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