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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1
CHECK ANY OTHER DTC ON DISPLAY.
2
CHECK EXHAUST SYSTEM.
NOTE:
Check the following items.
• Loose installation of front portion of exhaust
pipe onto cylinder heads
• Loose connection between front exhaust
pipe and front catalytic converter
• Damage of exhaust pipe resulting in a hole
AH:DTC P0134 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SEN-
SOR 1)
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H6DO)(diag)-41,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H6DO)(diag)-34, PROCEDURE,
Inspection Mode.>.
Check
Is any other DTC displayed?
Is there any fault in exhaust
system?
EN(H6DO)(diag)-143
ENGINE (DIAGNOSTICS)
Yes
Check DTC using
Go to step 2.
the List of Diag-
nostic Trouble
Code (DTC).
<Ref. to
EN(H6DO)(diag)-
66, List of Diag-
nostic Trouble
Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect
DTC
P0133.
Repair the exhaust
Replace the front
system.
oxygen (A/F) sen-
sor. <Ref. to
FU(H6DO)-30,
Front Oxygen (A/
F) Sensor.>
No
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