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2 CHECK HO2S 1 (FRONT) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal and HO2S1 terminal as follows.
Refer to Wiring Diagram.
SEF803Z
Continuity should exist.
3. Check harness continuity between ECM terminal or HO2S1 terminal and ground as follows.
Refer to Wiring Diagram.
SEF816Z
Continuity should not exist.
4. Also check harness for short to power.
OK or NG
OK (With CONSULT-II) 䊳 GO TO 3.
OK (Without CONSULT-
II)
䊳 GO TO 4.
NG 䊳 Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0130, P0150 HEATED OXYGEN SENSOR 1 (FRONT)
(BANK 1)/(BANK 2) (CIRCUIT)
VG33E
Diagnostic Procedure (Cont’d)
EC-785
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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