EC-3
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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
cardiagn.com
ECM
EC-87
< ECU DIAGNOSIS INFORMATION > [HR16DE]
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DTC IndexINFOID:0000000012431345
×
:Applicable —: Not applicable
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Reference page
CONSULT
GST*
2ECM*3
U0101 0101*5LOST COMM (TCM) — 1×BEC-164
U0284 0284 LOST COMM (A/GRLL SHTTR MDL A) — 2 ×BEC-163
U1001
1001*5CAN COMM CIRCUIT — 2 — —EC-164
U1040 1040 ENG COMM CIRCUIT — 2 — —EC-165
U1044 1044 ENG COMM CIRCUIT — 2 — —EC-166
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.
——— —
—
P0011 0011 INT/V TIM CONT-B1 ×2 × BEC-167
P0014 0014 EXT/V TIM CONT-B1 — 2×BEC-171
P0030 0030 HO2S1 HTR B1 — 2×BEC-174
P0031 0031 A/F SEN1 HTR (B1) — 2×BEC-174
P0032 0032 A/F SEN1 HTR (B1) — 2×BEC-174
P0037 0037 HO2S2 HTR (B1) — 2×BEC-177
P0038 0038 HO2S2 HTR (B1) — 2×BEC-177
P0075 0075 INT/V TIM V/CIR-B1 — 2×BEC-180
P0078 0078 EX V/T ACT/CIRC-B1 — 2×BEC-182
P0101 0101 MAF SEN/CIRCUIT-B1 — 2×BEC-185
P0102 0102 MAF SEN/CIRCUIT-B1 — 1×BEC-190
P0103 0103 MAF SEN/CIRCUIT-B1 — 1×BEC-190
P 0 111 0 111 I AT S E N S O R 1 B 1 — 2×AEC-195
P0112 0112 IAT SEN/CIRCUIT-B1 — 2×BEC-197
P0113 0113 IAT SEN/CIRCUIT-B1 — 2×BEC-197
P0116 0116 ECT SEN/CIRC — 2×AEC-199
P0117 0117 ECT SEN/CIRC — 1×BEC-201
P0118 0118 ECT SEN/CIRC — 1×BEC-201
P0122 0122 TP SEN 2/CIRC-B1 — 1×BEC-203
P0123 0123 TP SEN 2/CIRC-B1 — 1×BEC-203
P0125 0125 ECT SENSOR — 2×BEC-206
P0127 0127 IAT SENSOR-B1 — 2×BEC-208
P0128 0128 THERMSTAT FNCTN — 2×AEC-210
P0130 0130 A/F SENSOR1 (B1) ×2 × AEC-213
P0131 0131 A/F SENSOR1 (B1) — 2×BEC-217
P0132 0132 A/F SENSOR1 (B1) — 2×BEC-220
P0137 0137 HO2S2 (B1) ×2 × AEC-223
P0138 0138 HO2S2 (B1) ×2 × AEC-229
P0139 0139 HO2S2 (B1) ×2 × AEC-237
P014C 014C A/F SENSOR1 (B1) ×2 × AEC-243
P014D 014D A/F SENSOR1 (B1) ×2 × AEC-243
P015A 015A A/F SENSOR1 (B1) ×2 × AEC-243
P015B 015B A/F SENSOR1 (B1) ×2 × AEC-243
Revision: August 2015 2016 Versa Note
cardiagn.com
P0101 MAF SENSOREC-185
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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P0101 MAF SENSOR
DTC LogicINFOID:0000000012431402
DTC DETECTION LOGIC
NOTE:
If DTC P0101 is displayed with other DTC, first perform the trouble diagnosis for other DTC.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducti ng 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
1. Start engine and warm it up to normal operating temperature.
2. Drive the vehicle for at least 5 seconds under the following conditions: CAUTION:
Always drive vehicle at safe speed.
NOTE:
• The gear must be fixed while driving the vehicle.
• Keep the accelerator pedal as steady as possible during cruising.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-185, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431403
1.CHECK INTAKE SYSTEM
Check the following items to see the installati on condition and the connection condition of the joint.
• Air duct
• Vacuum hoses
• Intake air passage between air duct and intake manifold
Is the inspection result normal?
YES >> GO TO 2.
NO >> Reconnect or replace error-detected parts.
2.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition
Possible cause
P0101 MAF SEN/CIRCUIT-B1
[Mass air flow (MAF) sensor
circuit range/performance] • A high voltage from the sensor is sent to
ECM under light load driving condition.
• A low voltage from the sensor is sent to
ECM under heavy load driving condition. • Harness or connectors
(MAF sensor circuit is open or shorted.)
• Intake air leaks (e.g. poor connection)
•MAF sensor
• EVAP control system pressure sensor
• Intake air temperature sensor
Selector lever Suitable position
Vehicle speed 40 km/h (25 MPH) or more
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-186
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0101 MAF SENSOR
2. Check ground connection E15. Refer to Ground Inspection in GI-44, "Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace ground connection.
3.CHECK MASS AIR FLOW (MAF) SENSOR POWER SUPPLY CIRCUIT
1. Disconnect MAF sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between MAF sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E55, F55
• Harness for open or short between mass air flow sensor and ECM
• Harness for open or short between mass air flow sensor and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between MAF sens or harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between MAF sens or harness connector and ECM harness connector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK INTAKE AIR TEMPERATURE SENSOR
Check the intake air temperature sensor. Refer to EC-196, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
MAF sensor GroundVoltage
Connector Terminal
F31 2Ground Battery voltage
MAF sensor ECM
Continuity
Connector Terminal Connector Terminal
F31 3F11 52 Existed
MAF sensor ECM
Continuity
Connector Terminal Connector Terminal
F31 4F11 45 Existed
Revision: August 2015 2016 Versa Note
cardiagn.com
P0101 MAF SENSOREC-187
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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NO >> Replace MAF sensor (with intake air temperature sensor). Refer to
EM-26, "Removal and Installa-
tion".
8.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to EC-313, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace EVAP control system pressure sensor. Refer to FL-19, "
Removal and Installation".
9.CHECK MAF SENSOR
Check the MAF sensor. Refer to EC-187, "
Component Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace MAF sensor. Refer to EM-26, "
Removal and Installation".
Component InspectionINFOID:0000000012431404
1.CHECK MASS AIR FLOW SENSOR-I
With CONSULT
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Start engine and warm it up to normal operating temperature.
4. Connect CONSULT and select “DATA MONITOR” mode of “ENGINE”.
5. Select “MAS A/F SE-B1” and check indication.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Without CONSULT
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Start engine and warm it up to normal operating temperature.
4. Check the voltage between ECM harness connector and ground.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK FOR THE CAUSE OF UNEVEN AIR FLOW THROUGH MASS AIR FLOW SENSOR
1. Turn ignition switch OFF.
2. Check for the cause of uneven air flow through mass air flow sensor. Refer to the following.
- Crushed air ducts
- Malfunctioning seal of air cleaner element
Monitor item Condition MAS A/F SE-B1
MAS A/F SE-B1 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.8 - 1.3 V to Approx. 2.4 V*
ECM
Condition Voltage
Connector +
−
Te r m i n a l
F11 45 52 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.8 - 1.3 V to Approx. 2.4 V*
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-188
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0101 MAF SENSOR
- Uneven dirt of air cleaner element
- Improper specification of intake air system parts
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK MASS AIR FLOW SENSOR-II
With CONSULT
1. Repair or replace malfunctioning part.
2. Start engine and warm it up to normal operating temperature.
3. Connect CONSULT and select “DATA MONITOR” mode of “ENGINE”.
4. Select “MAS A/F SE-B1” and check indication.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Without CONSULT
1. Repair or replace malfunctioning part.
2. Start engine and warm it up to normal operating temperature.
3. Check the voltage between ECM harness connector and ground.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 4.
4.CHECK MASS AIR FLOW SENSOR-III
With CONSULT
1. Turn ignition switch OFF.
2. Disconnect mass air flow sensor harness connector and reconnect it again.
3. Start engine and warm it up to normal operating temperature.
4. Connect CONSULT and select “DATA MONITOR” mode of “ENGINE”.
5. Select “MAS A/F SE-B1” and check indication.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Without CONSULT
1. Turn ignition switch OFF.
Monitor item Condition MAS A/F SE-B1
MAS A/F SE-B1 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.8 - 1.3 V to Approx. 2.4 V*
ECM
Condition Voltage
Connector +
−
Te r m i n a l
F11 45 52 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.8 - 1.3 V to Approx. 2.4 V*
Monitor itemCondition MAS A/F SE-B1
MAS A/F SE-B1 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.8 - 1.3 V to Approx. 2.4 V*
Revision: August 2015 2016 Versa Note
cardiagn.com
P0101 MAF SENSOREC-189
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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2. Disconnect mass air flow sensor har
ness connector and reconnect it again.
3. Start engine and warm it up to normal operating temperature.
4. Check the voltage between ECM harness connector and ground.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Clean or replace mass air flow sensor. Refer to EM-26, "
Removal and Installation".
ECM
Condition Voltage
Connector +
−
Te r m i n a l
F11 45 52 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.8 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.8 - 1.3 V to Approx. 2.4 V*
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-190
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0102, P0103 MAF SENSOR
P0102, P0103 MAF SENSOR
DTC LogicINFOID:0000000012431405
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 at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
Which DTC is detected?
P0102 >> GO TO 2.
P0103 >> GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0102
1. Start engine and wait at least 5 seconds.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-190, "Diagnosis Procedure".
NO >> INSPECTION END
3.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103-I
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-190, "Diagnosis Procedure".
NO >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P0103-II
1. Start engine and wait at least 5 seconds.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-190, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431406
1.INSPECTION START
Confirm the detected DTC.
Which DTC is detected?
P0102 >> GO TO 2.
P0103 >> GO TO 3.
2.CHECK INTAKE SYSTEM
DTC No. Trouble diagnosis content DTC detecting conditionPossible cause
P0102 Mass air flow sensor circuit
low input An excessively low voltage from the sensor is
sent to ECM. • Harness or connectors
(The sensor circuit is open or shorted.)
• Intake air leakage
• Mass air flow sensor
P0103 Mass air flow sensor circuit
high input An excessively high voltage from the sensor is
sent to ECM. • Harness or connectors
(The sensor circuit is open or shorted.)
• Mass air flow sensor
Revision: August 2015 2016 Versa Note
cardiagn.com