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DTC P0031, P0032 HO2S1 HEATER
EC-145
[QR (WITH 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.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure BBS001AS
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer to EC-135, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
24 G/W
Heated oxygen sen-
sor 1 heater
[Engine is running]
● Warm-up condition.
● Engine speed is below 3,600 rpm
Approximately 7.0V
[Engine is running]
● Engine speed is above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
PBIB0519E
PBIB2021E
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