Nissan Almera Tino V10. Manual — part 499
EC-822
[QG (WITHOUT EURO-OBD)]
HO2S1 HEATER (A/T MODELS)
Wiring Diagram
EBS00R1L
BANK 1
YEC483A
HO2S1 HEATER (A/T MODELS)
EC-823
[QG (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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
24
G
Heated oxygen sensor 1
heater (bank 1)
[Engine is running]
●
Warm-up condition.
●
Engine speed is below 3,200 rpm
Approximately 7.0V
[Ignition switch “ON”]
●
Engine stopped.
[Engine is running]
●
Engine speed is above 3,200 rpm
BATTERY VOLTAGE
(11 - 14V)
PBIB0519E
EC-824
[QG (WITHOUT EURO-OBD)]
HO2S1 HEATER (A/T MODELS)
BANK 2
YEC484A
HO2S1 HEATER (A/T MODELS)
EC-825
[QG (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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
EBS00R1M
1.
CHECK OVERALL FUNCTION CHECK
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch “OFF” and wait at least 10 seconds.
3.
Turn ignition switch “ON”.
4.
Set the tester probe between ECM terminal 24 [HO2S1 (B1) heater signal] or 25 [HO2S1 (B2) heater sig-
nal] and ground.
5.
Start engine and let it idle.
6.
Check the voltage under the following conditions.
Verify that the oscilloscope screen shows the signal wave as
shown below.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
OK or NG
OK
>> INSPECTION END.
NG
>> GO TO 2.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
25
R/B
Heated oxygen sensor 1
heater (bank 2)
[Engine is running]
●
Warm-up condition.
●
Engine speed is below 3,200 rpm.
Approximately 7.0V
[Ignition switch “ON”]
●
Engine stopped.
[Engine is running]
●
Engine speed is above 3,200 rpm.
BATTERY VOLTAGE
(11 - 14V)
PBIB0519E
Conditions
Voltage
At idle
Approximately 7.0V
Engine speed is above 3,200 rpm
BATTERY VOLTAGE
(11 - 14V)
MBIB0039E
PBIB0519E
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