HO2s2 NISSAN LATIO 2011 Service Service Manual

ECM
EC-479
< ECU DIAGNOSIS > [HR16DE]
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OP0118 0118 ECT SEN/CIRC
— 1×BEC-170
P0122 0122 TP SEN 2/CIRC-B1 — 1×BEC-174
P0123 0123 TP SEN 2/CIRC-B1 — 1×BEC-174
P0125 0125 ECT SENSOR — 2×BEC-178
P0127 0127 IAT SENSOR-B1 — 2×BEC-181
P0128 0128 THERMSTAT FNCTN — 2×BEC-183
P0130 0130 A/F SENSOR1 (B1) — 2×AEC-185
P0131 0131 A/F SENSOR1 (B1) — 2×BEC-191
P0132 0132 A/F SENSOR1 (B1) — 2×BEC-196
P0133 0133 A/F SENSOR1 (B1) ×2 ×AEC-201
P0137 0137 HO2S2 (B1) ×2 ×AEC-207
P0138 0138 HO2S2 (B1) ×2 ×AEC-215
P0139 0139 HO2S2 (B1) ×2 ×AEC-224
P0171 0171 FUEL SYS-LEAN-B1 — 2×BEC-232
P0172 0172 FUEL SYS-RICH-B1 — 2×BEC-238
P0181 0181 FTT SENSOR — 2×BEC-244
P0182 0182 FTT SEN/CIRCUIT — 2×BEC-249
P0183 0183 FTT SEN/CIRCUIT — 2×BEC-249
P0222 0222 TP SEN 1/CIRC-B1 — 1×BEC-253
P0223 0223 TP SEN 1/CIRC-B1 — 1×BEC-253
P0300 0300 MULTI CYL MISFIRE — 1 or 2×BEC-257
P0301 0301 CYL 1 MISFIRE — 1 or 2×BEC-257
P0302 0302 CYL 2 MISFIRE — 1 or 2×BEC-257
P0303 0303 CYL 3 MISFIRE — 1 or 2×BEC-257
P0304 0304 CYL 4 MISFIRE — 1 or 2×BEC-257
P0327 0327 KNOCK SEN/CIRC-B1 — 2——EC-263
P0328 0328 KNOCK SEN/CIRC-B1 — 2——EC-263
P0335 0335 CKP SEN/CIRCUIT — 2×BEC-267
P0340 0340 CMP SEN/CIRC-B1 — 2×BEC-272
P0420 0420 TW CATALYST SYS-B1 ×2 ×AEC-277
P0441 0441 EVAP PURG FLOW/MON ×2 ×AEC-282
P0442 0442 EVAP SMALL LEAK ×2 ×AEC-288
P0443 0443 PURG VOLUME CONT/V — 2×AEC-295
P0444 0444 PURG VOLUME CONT/V — 2×BEC-301
P0445 0445 PURG VOLUME CONT/V — 2×BEC-301
P0447 0447 VENT CONTROL VALVE — 2×BEC-305
P0448 0448 VENT CONTROL VALVE — 2×BEC-310
P0451 0451 EVAP SYS PRES SEN — 2×AEC-316
P0452 0452 EVAP SYS PRES SEN — 2×BEC-319
P0453 0453 EVAP SYS PRES SEN — 2×BEC-326
P0455 0455 EVAP GROSS LEAK — 2×AEC-333
P0456 0456 EVAP VERY SML LEAK
×*72 ×AEC-339
DTC*1
Items
(CONSULT-III screen terms) SRT
code Trip MIL Permanent
DTC
group*
4
Reference page
CONSULT-III
GST*
2ECM*3
Revision: May 2010 2011 Versa

EC-504
< SERVICE INFORMATION >[MR18DE]
INDEX FOR DTC
SERVICE INFORMATION
INDEX FOR DTC
U0101-U1001INFOID:0000000006341677
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012/ISO 15031-6.
*3: In Diagnostic Test
Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-III.
P0011-P0075INFOID:0000000006341678
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012/ISO 15031-6.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
P0101-P0128INFOID:0000000006341679
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
U0101 0101*4LOST COMM (TCM) EC-639
U0140
0140*4LOST COMM (BCM) EC-641
U1001
1001*4CAN COMM CIRCUIT EC-643
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
P0011 0011 INT/V TIM CONT-B1 EC-645
P00310031 A/F SEN1 HTR (B1) EC-649
P00320032 A/F SEN1 HTR (B1) EC-649
P00370037 HO2S2 HTR (B1) EC-654
P00380038 HO2S2 HTR (B1) EC-654
P00750075 INT/V TIM V/CIR-B1 EC-659
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
P0101 0101 MAF SEN/CIRCUIT-B1 EC-664
P01020102 MAF SEN/CIRCUIT-B1 EC-672
P01030103 MAF SEN/CIRCUIT-B1 EC-672
P01120112 IAT SEN/CIRCUIT-B1 EC-679
P01130113 IAT SEN/CIRCUIT-B1 EC-679
P01160116 ECT SEN/CIRC EC-683
P01170117 ECT SEN/CIRC EC-683
P01180118 ECT SEN/CIRC EC-683
P01220122 TP SEN 2/CIRC-B1 EC-691
P01230123 TP SEN 2/CIRC-B1 EC-691
P01250125 ECT SENSOR EC-696
Revision: May 2010 2011 Versa

INDEX FOR DTCEC-505
< SERVICE INFORMATION > [MR18DE]
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NP
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*1: 1st trip DTC No. is
the same as DTC No.
*2: This number is prescri bed by SAE J2012/ISO 15031-6.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
P0130-P0183INFOID:0000000006341680
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescri bed by SAE J2012/ISO 15031-6.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
P0222-P0420INFOID:0000000006341681
P0127 0127 IAT SENSOR-B1 EC-699
P01280128 THERMSTAT FNCTN EC-702
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
DTC*1 Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
P0130 0130 A/F SENSOR1 (B1) EC-704
P01310131 A/F SENSOR1 (B1) EC-710
P01320132 A/F SENSOR1 (B1) EC-716
P01370137 HO2S2 (B1) EC-722
P01380138 HO2S2 (B1) EC-731
P01390139 HO2S2 (B1) EC-741
P014C014C A/F SENSOR1 (B1) EC-750
P014D014D A/F SENSOR1 (B1) EC-750
P01710171 FUEL SYS-LEAN-B1 EC-758
P01720172 FUEL SYS-RICH-B1 EC-764
P01810181 FTT SENSOR EC-770
P01820182 FTT SEN/CIRCUIT EC-774
P01830183 FTT SEN/CIRCUIT EC-774
DTC*1
Items
(CONSULT-III screen terms) Reference
CONSULT-III
GST*
2ECM*3
P0222 0222 TP SEN 1/CIRC-B1 EC-778
P02230223 TP SEN 1/CIRC-B1 EC-778
P03000300 MULTI CYL MISFIRE EC-783
P03010301 CYL 1 MISFIRE EC-783
P03020302 CYL 2 MISFIRE EC-783
P03030303 CYL 3 MISFIRE EC-783
P03040304 CYL 4 MISFIRE EC-783
P03270327 KNOCK SEN/CIRC-B1 EC-789
P03280328 KNOCK SEN/CIRC-B1 EC-789
P0335 0335 CKP SEN/CIRCUIT EC-793
Revision: May 2010 2011 Versa

EC-542
< SERVICE INFORMATION >[MR18DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by MIL lighting up when there is
malfunction on engine control system.
Therefore, when electrical controlled throttle and part
of ECM related diagnoses are continuously detected as
NG for 5 trips, ECM warns the driver that engine cont rol system malfunctions and MIL circuit is open by means
of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected, and demands the
driver to repair the malfunction.
Emission-related Diagnostic InformationINFOID:0000000006341719
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
× : Applicable —: Not applicable
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
LOST COMM (TCM) U0101
0101*5—1 ×BEC-639
LOST COMM (BCM) U0140
0140*5—1 ×BEC-641
CAN COMM CIRCUIT U1001
1001*5—2 — — EC-643
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000
——
Flashing*6— EC-565
INT/V TIM CONT-B1 P0011 0011×2 × BEC-645
A/F SEN1 HTR (B1) P0031 0031 — 2 ×BEC-649
A/F SEN1 HTR (B1) P0032 0032 — 2 ×BEC-649
HO2S2 HTR (B1) P0037 0037 — 2 ×BEC-654
HO2S2 HTR (B1) P0038 0038 — 2 ×BEC-654
INT/V TIM V/CIR-B1 P0075 0075 — 2 ×BEC-659
MAF SEN/CIRCUIT-B1 P0101 0101 — 2 ×BEC-664
MAF SEN/CIRCUIT-B1 P0102 0102 — 1 ×BEC-672
MAF SEN/CIRCUIT-B1 P0103 0103 — 1 ×BEC-672
IAT SEN/CIRCUIT-B1 P0112 0112 — 2 ×BEC-679
IAT SEN/CIRCUIT-B1 P0113 0113 — 2 ×BEC-679
ECT SEN/CIRC P0116 0116 — 2 ×BEC-683
ECT SEN/CIRC P0117 0117 — 1 ×BEC-686
ECT SEN/CIRC P0118 0118 — 1 ×BEC-686
TP SEN 2/CIRC-B1 P0122 0122 — 1 ×BEC-691
TP SEN 2/CIRC-B1 P0123 0123 — 1 ×BEC-691
ECT SENSOR P0125 0125 — 2 ×BEC-696
IAT SENSOR-B1 P0127 0127 — 2 ×BEC-699
THERMSTAT FNCTN P0128 0128 — 2 ×BEC-702
A/F SENSOR1 (B1) P0130 0130 — 2 ×AEC-704
A/F SENSOR1 (B1) P0131 0131 — 2 ×BEC-710
A/F SENSOR1 (B1) P0132 0132 — 2 ×BEC-716
HO2S2 (B1) P0137 0137×2 × AEC-722
HO2S2 (B1) P0138 0138×2 × AEC-731
HO2S2 (B1) P0139 0139×2 × AEC-741
A/F SENSOR1 (B1) P014C 014C — 2 ×AEC-750
Revision: May 2010 2011 Versa

EC-614
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
Monitored item [Unit]
Description Remarks
ENG SPEED
[rpm] • Indicates the engine speed computed from the signals of the
crankshaft position sensor (POS) and camshaft position sen-
sor (PHASE). • Accuracy becomes poor if engine speed
drops below the idle rpm.
• If the signal is interrupted while the engine is
running, an abnormal value may be indicat-
ed.
MAS A/F SE-B1
[V] • The signal voltage of the mass air flow sensor is displayed. • When the engine is stopped, a certain value
is indicated.
• When engine is running, specification range is indicated in "SPEC".
B/FUEL SCHDL
[ms] • “Base fuel schedule” indicates the fuel injection pulse width
programmed into ECM, prior to any learned on board correc-
tion. • When engine is running, specification range
is indicated in "SPEC".
A/F ALPHA-B1
[%] • The mean value of the air-fuel ratio feedback correction fac-
tor per cycle is indicated. • When the engine is stopped, a certain value
is indicated.
• This data also includes the data for the air/
fuel ratio learning control.
• When engine is running, specification range is indicated in "SPEC".
COOLAN TEMP/S
[ ° C] or [ °F] • The engine coolant temperature (determined by the signal
voltage of the engine coolant temperature sensor) is dis-
played. • When the engine coolant temperature sen-
sor is open or short-circuited, ECM enters
fail-safe mode. The engine coolant temper-
ature determined by the ECM is displayed.
A/F SEN1 (B1)
[V] • The A/F signal computed from the input signal of the A/F sen-
sor 1 is displayed.
HO2S2 (B1)
[V] • The signal voltage of the heated oxygen sensor 2 is dis-
played.
HO2S2 MNTR(B1)
[RICH/LEAN] • Display of heated oxygen sensor 2 signal:
RICH: means the amount of oxygen after three way catalyst
is relatively small.
LEAN: means the amount of oxygen after three way catalyst
is relatively large. • When the engine is stopped, a certain value
is indicated.
VHCL SPEED SE
[km/h] or [mph] • The vehicle speed computed from the vehicle speed signal is
displayed.
BATTERY VOLT
[V] • The power supply voltage of ECM is displayed.
ACCEL SEN 1
[V] • The accelerator pedal position sensor signal voltage is dis-
played. • ACCEL SEN 2 signal is converted by ECM
internally. Thus, it differs from ECM terminal
voltage signal.
ACCEL SEN 2
[V]
TP SEN 1-B1
[V]
• The throttle position sensor signal voltage is displayed. • TP SEN 2-B1 signal is converted by ECM in-
ternally. Thus, it differs from ECM terminal
voltage signal.
TP SEN 2-B1
[V]
FUEL T/TMP SE
[
° C] or [ °F] • The fuel temperature (determined by the signal voltage of the
fuel tank temperature sensor) is displayed.
INT/A TEMP SE
[ ° C] or [ °F] • The intake air temperature (determined by the signal voltage
of the intake air temperature sensor) is indicated.
EVAP SYS PRES
[V ] •
T
he signal voltage of EVAP control system pressure sensor
is displayed.
FUEL LEVEL SE
[V] • The signal voltage of the fuel level sensor is displayed.
START SIGNAL
[ON/OFF] • Indicates start signal status [ON/OFF] computed by the ECM
according to the signals of engine speed and battery voltage. • After starting the engine, [OFF] is displayed
regardless of the starter signal.
CLSD THL POS
[ON/OFF] • Indicates idle position [ON/OFF] computed by the ECM ac-
cording to the accelerator pedal position sensor signal.
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISEC-615
< SERVICE INFORMATION > [MR18DE]
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AIR COND SIG
[ON/OFF]
• Indicates [ON/OFF] condition of the air conditioner switch as
determined by the air conditioner signal.
P/N POSI SW
[ON/OFF] • Indicates [ON/OFF] condition from the park/neutral position
(PNP) signal.
PW/ST SIGNAL
[ON/OFF] • [ON/OFF] condition of the power steering system (deter-
mined by the signal sent from EPS control unit) is indicated.
LOAD SIGNAL
[ON/OFF] • Indicates [ON/OFF] condition from the electrical load signal.
ON: Rear window defogger switch is ON and/or lighting
switch is in 2nd position.
OFF: Both rear window defogger switch and lighting switch
are OFF.
IGNITION SW
[ON/OFF] • Indicates [ON/OFF] condition from ignition switch.
HEATER FAN SW
[ON/OFF] • Indicates [ON/OFF] condition from the heater fan switch sig-
nal.
BRAKE SW
[ON/OFF] • Indicates [ON/OFF] condition from the stop lamp switch sig-
nal.
INJ PULSE-B1
[msec] • Indicates the actual fuel injection pulse width compensated
by ECM according to the input signals. • When the engine is stopped, a certain com-
puted value is indicated.
IGN TIMING
[BTDC] • Indicates the ignition timing computed by ECM according to
the input signals. • When the engine is stopped, a certain value
is indicated.
CAL/LD VALUE
[%] • “Calculated load value” indicates the value of the current air-
flow divided by peak airflow.
MASS AIRFLOW
[g·m/s] • Indicates the mass airflow computed by ECM according to
the signal voltage of the mass air flow sensor.
PURG VOL C/V
[%] • Indicates the EVAP canister purge volume control solenoid
valve control value computed by the ECM according to the in-
put signals.
• The opening becomes larger as the value increases.
INT/V TIM(B1)
[ ° CA] • Indicates [
°CA] of intake camshaft advanced angle.
INT/V SOL(B1)
[%] • The control value of the intake valve timing control solenoid
valve (determined by ECM according to the input signal) is in-
dicated.
• The advance angle becomes larger as the value increases
AIR COND RLY
[ON/OFF] • The air conditioner relay control condition (determined by
ECM according to the input signals) is indicated.
FUEL PUMP RLY
[ON/OFF] • Indicates the fuel pump relay control condition determined by
ECM according to the input signals.
VENT CONT/V
[ON/OFF] • The control condition of the EVAP canister vent control valve
(determined by ECM according to the input signals) is indi-
cated.
ON: Closed
OFF: Open
THRTL RELAY
[ON/OFF] • Indicates the throttle control
motor relay control condition de-
termined by the ECM according to the input signals.
COOLING FAN
[HI/LOW/OFF] • Indicates the condition of the cooling fan (determined by
ECM according to the input signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1)
[ON/OFF] • Indicates [ON/OFF] condition of heated oxygen sensor 2
heater determined by ECM according to the input signals.
I/P PULLY SPD
[rpm] • Indicates the engine speed computed from the input speed
se ns
or si

gnal.
Monitored item [Unit]
Description Remarks
Revision: May 2010 2011 Versa

EC-618
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
*: Leaving cooling fan OFF with CONSULT-III while engine is running may cause the engine to overheat.
DTC & SRT CONFIRMATION MODE
SRT STATUS Mode
For details, refer to EC-542, "Emission-related Diagnostic Information".
PERMANENT DTC STATUS Mode
For details, refer to
EC-542, "Emission-related Diagnostic Information".
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
PERMANENT DTC WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to comp lete the driving pattern that is reguired for erasing
permanent DTC.
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.
DTC WORK SUPPORT Mode
*: DTC P1442 and P1456 does not apply to C11 models but appears in DTC Work Support Mode screens.
Generic Scan Tool (GST) FunctionINFOID:0000000006341740
DESCRIPTION
VENT CON-
TROL/V• Ignition switch: ON
(Engine stopped)
• Turn solenoid valve “ON” and “OFF” with the CONSULT-III and
listen to operating sound. Solenoid valve makes an operating
sound.
• Harness and connectors
• EVAP canister vent control valve
V/T ASSIGN AN-
GLE • Engine: Return to the original
trouble condition
• Change intake valve timing using CONSULT-III. If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Intake valve timing control sole-
noid valve
Test item
Condition JudgmentCheck item (Remedy)
Test mode Test itemCorresponding DTC No. Reference
EVAPORATIVE SYS-
TEM PURG FLOW P0441
P0441EC-810
EVP SML LEAK P0442/P1442* P0442
EC-815P0455EC-866
EVP V/S LEAK P0456/P1456* P0456EC-873
PURG VOL CN/V P1444 P0443EC-822
A/F SEN1 A/F SEN1 (B1) P1276
P0130EC-704A/F SEN1 (B1) P1278/P1279 ——
HO2S2 HO2S2 (B1) P0139
P0139EC-741
HO2S2 (B1) P1146 P0138EC-731
HO2S2 (B1) P1147 P0137EC-722
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISEC-621
< SERVICE INFORMATION > [MR18DE]
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HO2S2 (B1)
• Revving engine from idle to 3,000 rpm quickly 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 - 0.3 V
←→ Approx. 0.6 -
1.0 V
HO2S2 MNTR (B1) LEAN ←→ RICH
VHCL SPEED SE • Turn drive wheels and compare CONSULT-III value with the speedometer
indication. Almost the same speed as the
speedometer indication.
BATTERY VOLT • Ignition switch: ON (Engine stopped) 11 - 14 V
ACCEL SEN 1 • Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released
0.6 - 0.9 V
Accelerator pedal: Fully depressed 4.0 - 4.8 V
ACCEL SEN 2* • Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released
0.6 - 0.9 V
Accelerator pedal: Fully depressed 3.9 - 4.8 V
EVAP SYS PRES • Ignition switch: ON Approx. 1.8 - 4.8 V
TP SEN 1-B1
TP SEN 2-B1* • Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released
More than 0.36 V
• Shift lever: D (A/T, CVT), 1st (M/T) Accelerator pedal: Fully depressed
Less than 4.75 V
START SIGNAL • Ignition switch: ON → START → ON OFF → ON → OFF
CLSD THL POS • Ignition switch: ON Accelerator pedal: Fully released
ON
Accelerator pedal: Slightly depressed OFF
AIR COND SIG • Engine: After warming up, idle the
engine Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.) ON
P/N POSI SW • Ignition switch: ON Shift lever: P or N (A/T, CVT),
Neutral (M/T)
ON
Shift lever: Except above OFF
PW/ST SIGNAL • Engine: After warming up, idle the
engine Steering wheel: Not being turned
OFF
Steering wheel: Being turned ON
LOAD SIGNAL • Ignition switch: ON Rear window defogger switch: ON
and/or Lighting switch: 2nd
ON
Rear window defogger switch and light-
ing switch: OFF OFF
IGNITION SW • Ignition switch: ON → OFF → ON ON → OFF → ON
HEATER FAN SW • Ignition switch: ON Heater fan: Operating
ON
Heater fan: Not operating OFF
BRAKE SW • Ignition switch: ON Brake pedal: Fully released
OFF
Brake pedal: Slightly depressed ON
INJ PULSE-B1 • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idl
e
8° - 18 ° BT
DC
2,000 rpm 25° - 45 ° BTDC
CAL/LD VALUE • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
10% - 35%
2,500 rpm 10% - 35%
Monitor item
Condition Specification
Revision: May 2010 2011 Versa

EC-622
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
MASS AIRFLOW• Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
1.0 - 4.0 g·m/s
2,500 rpm 2.0 - 10.0 g·m/s
PURG VOL C/V • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm 0 - 50%
INT/V TIM (B1) • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
−5 ° - 5 °CA
When revving engine up to 2,000 rpm
quickly Approx. 0
° - 40 °CA
INT/V SOL (B1) • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No load Idle
0% - 2%
When revving engine up to 2,000 rpm
quickly Approx. 0% - 90%
AIR COND RLY • Engine: After warming up, idle the
engine Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates) ON
FUEL PUMP RLY • For 1 second after turning ignition switch ON
• Engine running or cranking
ON
• Except above conditions OFF
VENT CONT/V • Ignition switch: ON OFF
THRTL RELAY • Ignition switch: ON ON
COOLING FAN • Engine: After warming up, idle the
engine
• Air conditioner switch: OFF Engine coolant temperature: 97
°C
(207 °F) or less OFF
Engine coolant temperature: Between
98 °C (208 °F) and 99 °C (210 °F) LOW
Engine coolant temperature: 100 °C
(212 °F) or more HIGH
HO2S2 HTR (B1) • Below 3,600 rpm 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 ON
• Engine speed: Above 3,600 rpm OFF
I/P PULLY SPD • Vehicle speed: More than 20 km/h (12 MPH) Almost the same speed as the
tachometer indication
VEHICLE SPEED • Turn drive wheels and compare CONSULT-III value with the speedometer
indication. Alm
os
t
the same speed as the
speedometer indication
TRVL AFTER MIL • Ignition switch: ON Vehicle has traveled after MIL has
turned ON.0 - 65,535 km
(0 - 40,723 mile)
A/F S1 HTR (B1) • Engine: After warming up, idle the engine
(More than 140 seconds after starting engine.) 4 - 100%
AC PRESS SEN • Engine: Idle
• Air conditioner switch: ON (Compressor operates) 1.0 - 4.0 V
VHCL SPEED SE • Turn drive wheels and compare speedometer indication with the CONSULT-
III value. Almost the same speed as the
speedometer indication
SET VHCL SPD • Engine: Ru nningASCD: Operating The preset vehicle speed is
displayed.
Monitor item
Condition Specification
Revision: May 2010 2011 Versa

EC-654
< SERVICE INFORMATION >[MR18DE]
DTC P0037, P0038 HO2S2 HEATER
DTC P0037, P0038 HO2S2 HEATER
DescriptionINFOID:0000000006341781
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxy
gen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000006341782
Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000006341783
DTC Confirmation ProcedureINFOID:0000000006341784
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, confi rm that battery voltage is between 10.5 V and 16 V at
idle.
1. Start engine and warm it up to the normal operating temperature.
Sensor Input Signal to ECM ECM Function Actuator
Camshaft position sensor (PHASE) Engine speed
Heated oxygen sensor 2
heater controlHeated oxygen sensor 2 heater
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Engine coolant tempera-
ture
Mass air flow sensor Amount of intake air
Engine speed rpm Heated oxygen sensor 2 heater
Above 3,600 OFF
• Below 3,600 rpm 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 ON
Monitor item
Condition Specification
HO2S2 HTR (B1) • Engine speed: Below 3,600 rpm 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. ON
• Engine speed: Above 3,600 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
(Heated oxygen sensor 2 heater circuit is
open or shorted.)
• Heated 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
(Heated oxygen sensor 2 heater circuit is
shorted.)
• Heated oxygen sensor 2 heater
Revision: May 2010 2011 Versa