EC-3
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EC A
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MIXTURE RATIO SELF-LEARNING VALUE
CLEAR ............................................................ ..
132
Description .......................................................... ..132
Work Procedure ....................................................132
BASIC INSPECTION ........................................133
Work Procedure .................................................. ..133
FUEL PRESSURE CHECK ..............................137
Work Procedure .................................................. ..137
HOW TO SET SRT CODE ................................139
Description .......................................................... ..139
SRT Set Driving Pattern ........................................140
Work Procedure ....................................................142
HOW TO ERASE PERMANENT DTC ..............145
Description .......................................................... ..145
Work Procedure (Group A) ...................................146
Work Procedure (Group B) ...................................148
DTC/CIRCUIT DIAGNOSIS .......................151
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE ............................................................ ..
151
Description .......................................................... ..151
Component Function Check ..................................151
Diagnosis Procedure .............................................152
POWER SUPPLY AND GROUND CIRCUIT ....159
Diagnosis Procedure ........................................... ..159
U0101 CAN COMM CIRCUIT ...........................162
Description .......................................................... ..162
DTC Logic .............................................................162
Diagnosis Procedure .............................................162
U0284 ACTIVE GRILLE SHUTTER .................163
DTC Logic ........................................................... ..163
Diagnosis Procedure .............................................163
U1001 CAN COMM CIRCUIT ...........................164
Description .......................................................... ..164
DTC Logic .............................................................164
Diagnosis Procedure .............................................164
U1040 ENG COMM CIRCUIT ...........................165
DTC Logic ........................................................... ..165
Diagnosis Procedure .............................................165
U1044 ENG COMM CIRCUIT ...........................166
DTC Logic ........................................................... ..166
Diagnosis Procedure .............................................166
P0011 IVT CONTROL ......................................167
DTC Logic ........................................................... ..167
Diagnosis Procedure .............................................168
Component Inspection ..........................................169
P0014 EVT CONTROL .....................................171
DTC Logic .............................................................171
Diagnosis Procedure .............................................172
Component Inspection ......................................... ..173
P0030, P0031, P0032 A/F SENSOR HEATER .174
DTC Logic ............................................................ ..174
Diagnosis Procedure .............................................174
Component Inspection ...........................................175
P0037, P0038 HO2S2 HEATER .....................177
DTC Logic ..............................................................177
Diagnosis Procedure .............................................177
Component Inspection ...........................................178
P0075 IVT CONTROL SOLENOID VALVE ....180
DTC Logic ..............................................................180
Diagnosis Procedure .............................................180
Component Inspection ...........................................181
P0078 EVT CONTROL SOLENOID VALVE ...182
DTC Logic ..............................................................182
Diagnosis Procedure .............................................182
Component Inspection ...........................................183
P0101 MAF SENSOR .....................................185
DTC Logic ..............................................................185
Diagnosis Procedure .............................................185
Component Inspection ...........................................187
P0102, P0103 MAF SENSOR .........................190
DTC Logic ..............................................................190
Diagnosis Procedure .............................................190
Component Inspection ...........................................192
P0111 IAT SENSOR .......................................195
DTC Logic ..............................................................195
Component Function Check ..................................196
Diagnosis Procedure .............................................196
Component Inspection ...........................................196
P0112, P0113 IAT SENSOR ...........................197
DTC Logic ..............................................................197
Diagnosis Procedure .............................................197
Component Inspection ...........................................198
P0116 ECT SENSOR ......................................199
DTC Logic ..............................................................199
Component Function Check ..................................200
Diagnosis Procedure .............................................200
Component Inspection ...........................................200
P0117, P0118 ECT SENSOR ..........................201
DTC Logic ..............................................................201
Diagnosis Procedure .............................................201
Component Inspection ...........................................202
P0122, P0123 TP SENSOR ............................203
DTC Logic ..............................................................203
Diagnosis Procedure .............................................203
Component Inspection ...........................................204
P0125 ECT SENSOR ......................................206
DTC Logic ..............................................................206
Diagnosis Procedure .............................................206
Revision: August 2015 2016 Versa Note
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EC-66
< SYSTEM DESCRIPTION >[HR16DE]
DIAGNOSIS SYSTEM (ECM)
HO2 S2 DIAG1(B1)INCMP/CM-
PLT • Indicates DTC P0139 self-diagnosis (delayed re-
sponse) condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
SYSTEM 1 DIAG-
NOSIS A B1 INCMP/CM-
PLT • Indicates DTC P219A self-diagnosis condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
SYSTEM 1 DIAG-
NOSIS B B1 ABSNT/
PRSNT • Indicates DTC P219A self-diagnosis condition.
- ABSNT: Self-dia
gnosis standby
- PRSNT: Under self-diagnosis
A/GRLL SHTTR PO-
SITION F/CLOSE
MOVING
F/OPENUNIDTF • Indicates the status of active grille shutter.
- F/CLOSE: Active grille shutter is fully closed.
- MOVING: Active grille shutter is in motion.
- F/OPEN: Active grille shutter is fully opened.
- UNIDTF: Unable to specify the shutter position.
A/GRLL SHTTR
CALIBRATION INCMP/CM-
PLT • Indicates initial position learning status of active
grille shutter.
- CMPLT: The leaning is complete.
- INCOMP: The learning is incomplete.
A/GRLL SHTTR
CIRCUIT DIAG OK/NG• Indicates the diagnosis result of active grille shut-
ter circuit.
-OK: Normal.
- NG: Malfunction detected.
A/GRLL SHTTR
TEMP DIAG OK/NG• Indicates the diagnosis result of active grille shut-
ter actuator temperature status.
-OK: Normal
- NG: Abnormal temperature detected.
A/GRLL SHTTR
VOLT DIAG OK/NG• Indicates the diagnosis result of active grille shut-
ter voltage status.
-OK: Normal
- NG: Abnormal voltage detected.
A/GRLL SHTTR
OVER RUN OK/NG• Indicates active grille shutter moves beyond nor-
mal moving limit.
-OK: Normal
- NG: Malfunction detected.
A/GRLL SHTTR
STUCK OK/NG• Indicates the diagnosis result of active grille shut-
ter stuck or the operation range less than normal.
-OK: Normal
- NG: Malfunction detected.
A/GRLL SHTTR
CALIB DIAG OK/NG• Indicates the diagnosis result of initial position
learning of active grille shutter.
-OK: Normal
- NG: Deficiency detected.
A/F-S ATMSPHRC
CRCT B1 —Displays a determined value of atmospheric correc-
tion factor necessary for correcting an A/F sensor
signal input to ECM. The signal used for the correc-
tion is an A/F sensor signal transmitted while driving
under atmospheric pressure.
A/F-S ATMSPHRC
CRCT B2 —Displays a determined value of atmospheric correc-
tion factor necessary for correcting an A/F sensor
signal input to ECM. The signal used for the correc-
tion is an A/F sensor signal transmitted while driving
under atmospheric pressure.
A/F-S ATMSPHRC
CRCT UP B1 countDisplays the number of updates of the A/F sensor
atmospheric correction factor.
A/F-S ATMSPHRC
CR CT UP B2 coun
t Dis
plays the number of updates of the A/F sensor
atmospheric correction factor.
Monitored item Unit
DescriptionRemarks
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-244
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P014C, P014D, P015A,
P015B, A/F SENSOR 1
4.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Wait for about 20 seconds at idle.
2. Check the items status of “DATA MONITOR” as follows. NOTE:
If “CMPLT” changed to “INCMP”, refer to EC-151, "
Component Function Check".
Is
“CMPLT” displayed on CONSULT screen?
YES >> GO TO 5.
NO >> Refer to EC-151, "
Component Function Check".
5.PERFORM SELF-DIAGNOSIS
With CONSULT
Check the “SELF-DIAG RESULT”.
Is any DTC detected?
YES >> Proceed to EC-245, "Diagnosis Procedure".
NO >> INSPECTION END
6.CHECK AIR-FUEL RATIO SELF-LEARNING VALUE
With GST
1. Start engine and warm it up to normal operating temperature.
2. Select Service $01 with GST.
3. Calculate the total value of “Short term fuel trim” and “Long term fuel trim” indications.
Is the total percentage within
±15%?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
• Intake air leaks
• Exhaust gas leaks
• Incorrect fuel pressure
• Lack of fuel
• Fuel injector
• Incorrect PCV hose connection
• PCV valve
• Mass air flow sensor
>> Repair or replace malfunctioning part.
8.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Increase the engine speed up to about 3,600 rpm and keep it for 10 seconds.
7. Fully release accelerator pedal and then let engine idle for about 1 minute.
8. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-245, "Diagnosis Procedure".
NO >> INSPECTION END
Data monitor item Status
A/F SEN1 DIAG1 (B1) CMPLT
A/F SEN1 DIAG2 (B1)
Revision: August 2015 2016 Versa Note
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EC-248
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0171 FUEL INJECTION SYSTEM FUNCTION
P0171 FUEL INJECTIO
N SYSTEM FUNCTION
DTC LogicINFOID:0000000012431455
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio f eedback signal from the A/F sensor 1. The ECM calcu-
lates the necessary compensation to correct the of fset between the actual and the theoretical ratios.
In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the
ECM judges the condition as the fuel injection system malfunction and lights up the MIL (2 trip detection logic).
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE-I
1. Clear the mixture ratio self-learning value. Refer to EC-132, "
Description".
2. Start engine.
Is it difficult to start engine?
YES >> GO TO 3.
NO >> GO TO 4.
3.RESTART ENGINE
If it is difficult to start engine, the f uel injection system has a malfunction, too.
Crank engine while depressing accelerator pedal.
NOTE:
When depressing accelerator pedal three-fourths (3/4) or more, the control system may not start the engine.
Do not depress accelerator pedal too much.
Does engine start?
YES >> Go to EC-249, "Diagnosis Procedure".
NO >> Check exhaust and intake air leak visually.
4.PERFORM DTC CONFIRMATION PROCEDURE-II
1. Start engine and let it idle for at least 5 minutes.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-249, "Diagnosis Procedure".
Sensor Input signal to ECM ECM functionActuator
A/F sensor 1 Density of oxygen in exhaust gas
(Mixture ratio feedback signal) Fuel injection control Fuel injector
DTC No. Trouble diagnosis content
DTC detecting conditionPossible cause
P0171 Fuel injection system too
lean • Fuel injection system does not operate properly.
• The amount of mixture ratio compensation is
too large. (The mixture ratio is too lean.) • Intake air leaks
• A/F sensor 1
• Fuel injector
• Exhaust gas leaks
• Incorrect fuel pressure
• Lack of fuel
• Mass air flow sensor
• Incorrect PCV hose connection
Revision: August 2015
2016 Versa Note
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EC-252
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0172 FUEL INJECTION SYSTEM FUNCTION
P0172 FUEL INJECTIO
N SYSTEM FUNCTION
DTC LogicINFOID:0000000012431457
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio f eedback signal from the A/F sensor 1. The ECM calcu-
lates the necessary compensation to correct the of fset between the actual and the theoretical ratios.
In case the amount of the compensation value is extrem ely large (The actual mixture ratio is too rich.), the
ECM judges the condition as the fuel injection system malfunction and lights up the MIL (2 trip detection logic).
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE-I
1. Clear the mixture ratio self-learning value. Refer to EC-132, "
Description".
2. Start engine.
Is it difficult to start engine?
YES >> GO TO 3.
NO >> GO TO 4.
3.RESTART ENGINE
If it is difficult to start engine, the f uel injection system has a malfunction, too.
Crank engine while depressing accelerator pedal.
NOTE:
When depressing accelerator pedal three-fourths (3/4) or more, the control system may not start the engine.
Do not depress accelerator pedal too much.
Does engine start?
YES >> Go to EC-253, "Diagnosis Procedure".
NO >> Remove spark plugs and check for fouling, etc.
4.PERFORM DTC CONFIRMATION PROCEDURE-II
1. Start engine and let it idle for at least 5 minutes.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-253, "Diagnosis Procedure".
NO >> GO TO 5.
5.PERFORM DTC CONFIRMATION PROCEDURE-III
Sensor Input signal to ECM ECM functionActuator
A/F sensor 1 Density of oxygen in exhaust gas
(Mixture ratio feedback signal) Fuel injection control Fuel injector
DTC No. Trouble diagnosis content
DTC detecting condition Possible cause
P0172 Fuel injection system too rich • Fuel injection system does not operate properly.
• The amount of mixture ratio compensation is too
large. (The mixture ratio is too rich.) • A/F sensor 1
• Fuel injector
• Exhaust gas leaks
• Incorrect fuel pressure
• Mass air flow sensor
Revision: August 2015
2016 Versa Note
cardiagn.com
EC-398
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P2096, P2097 A/F SENSOR 1
P2096, P2097 A/F SENSOR 1
DTC LogicINFOID:0000000012431611
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Clear the mixture ratio self-learning value. Refer to EC-132, "
Description".
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 1 minute under no load.
4. Let engine idle for 1 minute.
5. Keep engine speed between 2,500 and 3,000 rpm for 20 minutes.
6. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-398, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431612
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-44, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.RETIGHTEN A/F SENSOR 1 AND HEATED OXYGEN SENSOR 2
Loosen and retighten the A/F sensor 1 and heated oxygen sensor 2. Refer to EM-31, "
Removal and Installa-
tion".
>> GO TO 3.
3.CHECK FOR EXHAUST GAS LEAK
1. Start engine and run it at idle.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible Cause
P2096 POST CAT FUEL TRIM SYS
B1
(Post catalyst fuel trim system
too lean bank 1) The output voltage computed by ECM from the A/
F sensor 1 signal is shifts to the lean side for a
specified period.
• A/F sensor 1
• A/F sensor 1 heater
• Heated oxygen sensor 2
• Fuel pressure
• Fuel injector
• Intake air leaks
• Exhaust gas leaks
P2097 POST CAT FUEL TRIM SYS
B1
(Post catalyst fuel trim system
too rich bank 1) The A/F signal computed by ECM from the A/F
sensor 1 signal is shifts to the rich side for a spec-
ified period.
Revision: August 2015
2016 Versa Note
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EC-426
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P219A AIR FUEL RATIO
P219A AIR FUEL RATIO
DTC LogicINFOID:0000000012741312
DTC DETECTION LOGIC
NOTE:
•
If DTC P219A is displayed with other DTC, first perform the trouble diagnosis for the other DTC.
Refer to EC-87, "
DTCIndex".
• If DTC P219A is displayed with DTC P219C, P219D, P219E or P219F , perform the trouble diagnosis
for DTC P219C, P219D, P219E or P219F. Refer to EC-87, "
DTCIndex".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING-1
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
NOTE:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 2.
2.PRECONDITIONING-2
1. Turn ignition switch ON.
2. Clear the mixture ratio self-learning value. Refer to EC-132, "
Description".
Will CONSULT be used?
YES >> GO TO 3.
NO >> GO TO 6.
3.PERFORM DTC CONFIRMATION PROCEDURE-1
1. Turn ignition switch ON.
2. Select “COOLAN TEMP/S” in “DATA MONI TOR” mode of “ENGINE” using CONSULT.
3. Start the engine.
4. Make sure that “COOLAN TEMP/S” indicates more than 80 °C (176° F).
>> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Select “SYSTEM 1 DIAG NOSIS B B1” and “SYSTEM 1 DIAGNOSIS A B1” in “DATA MONITOR” mode of
“ENGINE” using CONSULT.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P219A AIR FUEL RATIO IMBAL-
ANCE B1
(Air-fuel ratio imbalance bank
1) ECM detects a lean/rich air fuel ratio state in any
cylinder for a specified length of time. • Fuel injector
• Exhaust gas leaks
• Incorrect fuel pressure
• Mass air flow sensor
• Intake air leaks
• Lack of fuel
• Incorrect PCV hose connection
• Improper spark plug
• Insufficient compression
• The fuel injector circuit is open or
shorted
• ignition coil
• The ignition signal circuit is open or shorted
Revision: August 2015 2016 Versa Note
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P219C, P219D, P219E, P219F AIR FUEL RATIO
EC-431
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
C
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P219C, P219D, P219E, P219F AIR FUEL RATIO
DTC LogicINFOID:0000000012741314
DTC DETECTION LOGIC
NOTE:
•
If DTC P219C, P219D, P219E or P219F is displayed wi th other DTC, first perform the trouble diagno-
sis for the other DTC. Refer to EC-87, "
DTCIndex".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING-1
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
NOTE:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.
>> GO TO 2.
2.PRECONDITIONING-2
1. Turn ignition switch ON.
2. Clear the mixture ratio self-learning value. Refer to EC-132, "
Description".
Will CONSULT be used?
YES >> GO TO 3.
NO >> GO TO 6.
3.PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
1. Turn ignition switch ON.
2. On CONSULT screen, select “ENGINE” >> “DATA MONITOR” >> “COOLAN TEMP/S”.
3. Start engine.
4. Check that “COOLAN TEMP/S” indicates more than 80 °C (176° F).
>> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE-2
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P219C CYLINDER 1 AIR-FUEL RATIO
(Cylinder 1 Air-Fuel Ratio Imbal-
ance) The cylinder 1 combustion condition calculated
by ECM based on a crankshaft position sensor
signal is continuously imbalanced compared with
other cylinders. (Abnormal air-fuel ratio)
• Fuel injector
• Exhaust gas leaks
• Incorrect fuel pressure
• Mass air flow sensor
• Intake air leaks
• Lack of fuel
• Incorrect PCV hose connection
• Improper spark plug
• Insufficient compression
• The fuel injector circuit is open
or shorted
• Ignition coil
• The ignition signal circuit is open or shorted
P219D
CYLINDER 2 AIR-FUEL RATIO
(Cylinder 2 Air-Fuel Ratio Imbal-
ance) The cylinder 2 combustion condition calculated
by ECM based on a crankshaft position sensor
signal is continuously imbalanced compared with
other cylinders. (Abnormal air-fuel ratio)
P219E CYLINDER 3 AIR-FUEL RATIO
(Cylinder 3 Air-Fuel Ratio Imbal-
ance) The cylinder 3 combustion condition calculated
by ECM based on a crankshaft position sensor
signal is continuously imbalanced compared with
other cylinders. (Abnormal air-fuel ratio)
P219F CYLINDER 4 AIR-FUEL RATIO
(Cylinder 4 Air-Fuel Ratio Imbal-
ance) The cylinder 4 combustion condition calculated
by ECM based on a crankshaft position sensor
signal is continuously imbalanced compared with
other cylinders. (Abnormal air-fuel ratio)
Revision: August 2015
2016 Versa Note
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