Nissan Almera Tino V10. Manual — part 334
EC-162
[QG (WITH EURO-OBD)]
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER (A/T MODELS)
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
EBS00QI4
1.
CHECK HO2S1 POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect heated oxygen sensor 1 harness connector.
3.
Turn ignition switch “ON”.
4.
Check voltage between HO2S1 terminal 4 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
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
MBIB0092E
Voltage: Battery voltage
PBIB0541E
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER (A/T MODELS)
EC-163
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
2.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M71, F45
●
Fuse block (J/B) connector M1
●
10A fuse
●
Harness for open or short between heated oxygen sensor 1 and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK HO2S1 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch “OFF”.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal and HO2S1 terminal as follows.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK HEATED OXYGEN SENSOR 1 HEATER
Refer to
EC-164, "Component Inspection"
.
OK or NG
OK
>> GO TO 5.
NG
>> Replace malfunctioning heated oxygen sensor 1.
5.
CHECK INTERMITTENT INCIDENT
Refer to
EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
DTC
Terminals
Bank
ECM
Sensor
P0031, P0032
24
1
1
P0051, P0052
25
1
2
Continuity should exist.
EC-164
[QG (WITH EURO-OBD)]
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER (A/T MODELS)
Component Inspection
EBS00QI5
HEATED OXYGEN SENSOR 1 HEATER
1.
Check resistance between HO2S1 terminals as follows.
2.
If NG, replace heated oxygen sensor 1.
CAUTION:
●
Discard any heated oxygen sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard sur-
face such as a concrete floor; use a new one.
●
Before installing new oxygen sensor, clean exhaust system
threads using Oxygen Sensor Thread Cleaner tool J-43897-
18 or J-43897-12 and approved anti-seize lubricant.
Removal and Installation
EBS00QI6
HEATED OXYGEN SENSOR 1
Refer to
EM-21, "EXHAUST MANIFOLD AND CATALYTIC CONVERTER"
.
Terminal No.
Resistance
1 and 4
8 - 10
Ω
at 25
°
C (77
°
F)
2 and 1, 3, 4
∞ Ω
(Continuity should not exist)
3 and 1, 2, 4
PBIB0542E
DTC P0037, P0038 HO2S2 HEATER (M/T MODELS)
EC-165
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0037, P0038 HO2S2 HEATER (M/T MODELS)
PFP:226A0
Description
EBS00QI7
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
CONSULT-II Reference Value in Data Monitor Mode
EBS00QI8
Specification data are reference values.
On Board Diagnosis Logic
EBS00QI9
DTC Confirmation Procedure
EBS00QIA
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10.5V and 16V at
idle.
WITH CONSULT-II
1.
Turn ignition switch “ON” and select “DATA MONITOR” mode with CONSULT-II.
2.
Start engine and warm it up to the normal operating temperature.
3.
Turn ignition switch “OFF” and wait at least 10 seconds.
Sensor
Input Signal to ECM
ECM Function
Actuator
Camshaft position sensor (PHASE)
Engine speed
Heated oxygen sensor
2 heater control
Heated oxygen sensor 2 heater
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Engine coolant temperature
Mass air flow sensor
Amount of intake air
Engine speed rpm
Heated oxygen sensor 2 heater
Above 3,800
OFF
●
Below 3,800 rpm after the following 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
ON
MONITOR ITEM
CONDITION
SPECIFICATION
HO2S2 HTR (B1)
●
Engine speed: Below 3,800 rpm after the following 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
ON
●
Engine speed: Above 3,800 rpm
OFF
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0037
0037
Heated oxygen sensor 2
heater control circuit low
The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)
●
Harness or connectors
(The heated oxygen sensor 2 heater
circuit is open or shorted.)
●
Heater oxygen sensor 2 heater
P0038
0038
Heated oxygen sensor 2
heater control circuit high
The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)
●
Harness or connectors
(The heated oxygen sensor 2 heater
circuit is shorted.)
●
Heater oxygen sensor 2 heater
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