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HO2S1
EC-865
[QR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure BBS001TT
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-634, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
35 P/L Heated oxygen sensor 1
[Engine is running]
● Warm-up condition
● Engine speed is 2,000 rpm
0 - Approximately 1.0V
(Periodically change)
74 B
Sensor ground
(Heated oxygen sensor)
[Engine is running]
● Idle speed
Approximately 0V
PBIB2021E
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