2009 NISSAN TIIDA heater

DTC P0037, P0038
HO2S2 HEATER
EC-1161
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
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M A EC
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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 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-1162, " Diagnosis Procedure " .
Wiring Diagram INFOID:0000000004499986 BBWA2628E

EC-1162< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0037, P0038 HO2S2 HEATER
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION:
Do not use ECM ground terminals when measuring in put/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000044999871.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body. Refer to EC-1144, " Ground Inspection " .
OK or NG OK >> GO TO 2.TER-
MI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
5 G Heated oxygen sensor 2
heater [Engine is running]
• Engine speed: Below 3,600 rpm after the fol- lowing conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at idle for 1
minute under no load. Approximately 10V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm. BATTERY VOLTAGE
(11 - 14V)
50 W Heated oxygen sensor 2 [Engine is running]
• Revving engine from idle to 3,000 rpm quick-
ly after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at idle for 1
minute under no load. 0 - Approximately 1.0V
59 O Sensor ground
(Heated oxygen sensor 2) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V PBIA8148J
:
Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15 BBIA0698E

DTC P0037, P0038
HO2S2 HEATER
EC-1163
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
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G H
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M A EC
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NG >> Repair or replace ground connections. 2.
CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 2 harness connector (2).
- : Vehicle front
- Heated oxygen sensor 2 (1)
2. Turn ignition switch ON.
3. Check voltage between HO2S2 terminal 2 and ground with CONSULT-III or tester.
OK or NG OK >> GO TO 4.
NG >> GO TO 3. 3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between heated oxygen sensor 2 and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors. 4.
CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 5 and HO2S2 terminal 3. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 5.
CHECK HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-1164, " Component Inspection " .
OK or NG OK >> GO TO 6.
NG >> Replace heated oxygen sensor 2. 6.
CHECK INTERMITTENT INCIDENT
Refer to EC-1138 .
>> INSPECTION END BBIA0700E
Voltage: Battery voltage
MBIB0186E
Continuity should exist.

EC-1164< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0037, P0038 HO2S2 HEATER
Component Inspection INFOID:0000000004499988
HEATED OXYGEN SENSOR 2 HEATER
1. Check resistance between HO2S2 terminals as follows.
2. If NG, replace heated oxygen sensor 2.
CAUTION:
• Discard any heated oxygen sen sor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard surface
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 INFOID:0000000004499989
HEATED OXYGEN SENSOR 2
Refer to EM-144, " Removal and Installation " .
Terminal No. Resistance
2 and 3 3.4 - 4.4 Ω [at 25 °C (77 °F)]
1 and 2, 3, 4 ∞ Ω
(Continuity should not exist)
4 and 1, 2, 3 PBIB3310E

EC-1210< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0130 A/F SENSOR 1
DTC P0130 A/F SENSOR 1
Component Description INFOID:0000000004500054
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800 °C
(1,472 °F).
CONSULT-III Reference Value in Data Monitor Mode INFOID:0000000004500055
Specification data are reference values.
On Board Diagn osis Logic INFOID:0000000004500056
To judge the malfunction, the diagnosis c hecks that the A/F signal computed by ECM from the air fuel ratio (A/
F) sensor 1 signal fluctuates ac cording to fuel feedback control.
DTC Confirmation Procedure INFOID:0000000004500057
Perform PROCEDURE FOR MALFUNCTION A first.
If the DTC cannot be confirmed, perform PROCEDURE FOR MALFUNCTION B.
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, 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 more than 11V at idle.
PROCEDURE FOR MALFUNCTION A
1. Start engine and warm it up to normal operating temperature. PBIB3353E
PBIB3354E
MONITOR ITEM CONDITION SPECIFICATION
A/F SEN1 (B1) • Engine: After warming up Maintaining engine speed at
2,000 rpm Fluctuates around 2.2VDTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0130
0130 Air fuel ratio (A/F) sensor 1
circuit A)
The A/F signal computed by ECM from the A/F
sensor 1 signal is constantly in the range other
than approx. 2.2V. • Harness or connectors
[Air fuel ratio (A/F) sensor 1 cir-
cuit is open or shorted.]
• Air fuel ratio (A/F) sensor 1
B) The A/F signal computed by ECM from the A/F
sensor 1 signal is constantly approx. 2.2V.

DTC P0130 A/F SENSOR 1
EC-1213
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure INFOID:00000000045000601.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body. Refer to EC-1144, " Ground Inspection " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace ground connections. 2.
CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect A/F sensor 1 harness connector (1).
2. Turn ignition switch ON. TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
3 G A/F sensor 1 heater [Engine is running]
• Warm-up condition
• Idle speed
(More than 140 seconds after starting
engine) Approximately 2.9 - 8.8V
49 W A/F sensor 1 [Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm Approximately 1.8V
Output voltage varies with air fuel
ratio.
53 B A/F sensor 1 [Ignition switch: ON]Approximately 2.2V PBIA8148J
:
Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15 BBIA0698E
BBIA0699E

EC
NP
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Removal and Installation
INFOID:0000000004501128
AIR FUEL RATIO SENSOR HEATER Refer to EM-144, " Removal and Installation " .

EC-1216< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0131 A/F SENSOR 1
DTC P0131 A/F SENSOR 1
Component Description INFOID:0000000004501132
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800 °C
(1,472 °F).
CONSULT-III Reference Value in Data Monitor Mode INFOID:0000000004501133
Specification data are reference values.
On Board Diagn osis Logic INFOID:0000000004500064
To judge the malfunction, the diagnosis c hecks that the A/F signal computed by ECM from the air fuel ratio (A/
F) sensor 1 signal is not inordinately low.
DTC Confirmation Procedure INFOID:0000000004500065
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, 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 more than 11V at idle.
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Select “A/F SEN1 (B1)” in “D ATA MONITOR” mode with CONSULT-III.
3. Check “A/F SEN1 (B1)” indication.
If the indication is constantly approx. 0V, go to EC-1219, " Diagnosis Procedure " . PBIB3353E
PBIB3354E
MONITOR ITEM CONDITION SPECIFICATION
A/F SEN1 (B1) • Engine: After warming up Maintaining engine speed at
2,000 rpm Fluctuates around 2.2VDTC No.
Trouble diagnosis
name DTC detecting condition Possible Cause
P0131
0131 Air fuel ratio (A/F) sen-
sor 1 circuit low voltage The A/F signal computed by ECM from the A/F
sensor 1 signal is constantly approx. 0V. • Harness or connectors
[Air fuel ratio (A/F) sensor circuit is open
or shorted.]
• Air fuel ratio (A/F) sensor 1