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3 CHECK HEATED OXYGEN SENSOR 1 HEATER (FRONT)
Check resistance between terminals 3 and 1.
SEF220W
Resistance: 2.3 - 4.3 Ω at 25°C (77°F)
Check continuity between terminals 2 and 1, 3 and 2.
Continuity should not exist.
CAUTION:
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.
OK or NG
OK (With CONSULT-II) 䊳 GO TO 4.
OK (Without CONSULT-
II)
䊳 GO TO 5.
NG 䊳 Replace heated oxygen sensor 1 (front).
DTC P0131 HEATED OXYGEN SENSOR 1 (FRONT)
(LEAN SHIFT MONITORING)
KA24DE
Diagnostic Procedure (Cont’d)
EC-204
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