Nissan Almera Tino V10. Manual — part 502
EC-834
[QG (WITHOUT EURO-OBD)]
HO2S2 HEATER (A/T MODELS)
Wiring Diagram
EBS00R1X
BANK 1
YEC486A
HO2S2 HEATER (A/T MODELS)
EC-835
[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.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
2
R/B
Heated oxygen sensor 2
heater (bank 1)
[Engine is running]
●
Engine speed: Below 3,600 rpm after the follow-
ing conditions are met.
–
Engine: After warming up
–
Keeping the engine speed between 3,500 and
4,000 rpm for one minute and at idle for one
minute under no load
0 - 1.0V
[Ignition switch “ON”]
●
Engine stopped
[Engine is running]
●
Engine speed is above 3,600 rpm.
BATTERY VOLTAGE
(11 - 14V)
EC-836
[QG (WITHOUT EURO-OBD)]
HO2S2 HEATER (A/T MODELS)
BANK 2
YEC487A
HO2S2 HEATER (A/T MODELS)
EC-837
[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 body 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
EBS00R1Y
1.
CHECK OVERALL FUNCTION
1.
Start engine and warm it up to the normal operating temperature.
2.
Turn ignition switch “OFF” and wait at least 10 seconds.
3.
Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least one minute under no
load.
4.
Let engine idle for one minute.
5.
Set voltmeter probes between ECM terminal 2 [HO2S2(B1) heater signal] or 7 [HO2S2(B2) heater signal]
and ground.
6.
Check the voltage under the following conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
7
W/R
Heated oxygen sensor 2
heater (bank 2)
[Engine is running]
●
Engine speed: Below 3,600 rpm after the follow-
ing conditions are met.
–
Engine: After warming up
–
Keeping the engine speed between 3,500 and
4,000 rpm for one minute and at idle for one
minute under no load
0 - 1.0V
[Ignition switch “ON”]
●
Engine stopped
[Engine is running]
●
Engine speed is above 3,600 rpm.
BATTERY VOLTAGE
(11 - 14V)
Conditions
voltage
At idle
0 - 1V
Engine speed is above 3,600 rpm.
Battery voltage
MBIB0040E
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