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5 CHECK HEATED OXYGEN SENSOR 1 HEATER
Check resistance between HO2S1 terminals as follows.
SEF310X
CAUTION:
I 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.
I Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool
J-43897-18 or J-43897-12 and approved anti-seize lubricant.
OK or NG
OK (With CONSULT-II) © GO TO 6.
OK (Without CONSULT-
II)
© GO TO 7.
NG © Replace malfunctioning heated oxygen sensor 1.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1144, P1164 HO2S1
Diagnostic Procedure (Cont’d)
EC-503
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