ECM
EC-91
< ECU DIAGNOSIS INFORMATION > [HR16DE]
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Item
OBD-
MID Self-diagnostic test item
DTCTest value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
HO2S 01H Air fuel ratio (A/F) sensor 1
(Bank 1) P0131 83H 0BH
Minimum sensor output voltage for test
cycle
P0131 84H 0BH Maximum sensor output voltage for
test cycle
P0130 85H 0BH Minimum sensor output voltage for test
cycle
P0130 86H 0BH Maximum sensor output voltage for
test cycle
P0133 87H 04H Response rate: Response ratio (lean
to rich)
P0133 88H 04H Response rate: Response ratio (rich to
lean)
P2A00 or P2096 89H 84H The amount of shift in air fuel ratio (too
lean)
P2A00 or P2097 8AH 84H The amount of shift in air fuel ratio (too
rich)
P0130 8BH 0BH Difference in sensor output voltage
P0133 8CH 83H Response gain at the limited frequency
P014C 8DH 04H O2 sensor slow response - Rich to
lean bank 1 sensor 1
P014C 8EH 04H O2 sensor slow response - Rich to
lean bank 1 sensor 1
P014D 8FH 84H O2 sensor slow response - Lean to rich
bank 1 sensor 1
P014D 90H 84H O2 sensor slow response - Lean to rich
bank 1 sensor 1
P015A 91H 01H O2 sensor delayed response - Rich to
lean bank 1 sensor 1
P015A 92H 01H O2 sensor delayed response - Rich to
lean bank 1 sensor 1
P015B 93H 01H O2 sensor delayed response - Lean to
rich bank 1 sensor 1
P015B 94H 01H O2 sensor delayed response - Lean to
rich bank 1 sensor 1
P0133 95H 04H Response rate: Response ratio (lean
to rich)
P0133 96H 84H Response rate: Response ratio (rich to
lean)
Revision: August 2015
2016 Versa Note
cardiagn.com
EC-92
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
HO2S02H
Heated oxygen sensor 2
(Bank 1) P0138 07H 0CH
Minimum sensor output voltage for test
cycle
P0137 08H 0CH Maximum sensor output voltage for
test cycle
P0138 80H 0CH Sensor output voltage
P0139 81H 0CH Difference in sensor output voltage
P0139 82H 11H Rear O2 sensor delay response diag-
nosis
03H Heated oxygen sensor 3
(Bank 1) P0143 07H 0CH
Minimum sensor output voltage for test
cycle
P0144 08H 0CH Maximum sensor output voltage for
test cycle
P0146 80H 0CH Sensor output voltage
P0145 81H 0CH Difference in sensor output voltage
05H Air fuel ratio (A/F) sensor 1
(Bank 2) P0151 83H 0BH
Minimum sensor output voltage for test
cycle
P0151 84H 0BH Maximum sensor output voltage for
test cycle
P0150 85H 0BH Minimum sensor output voltage for test
cycle
P0150 86H 0BH Maximum sensor output voltage for
test cycle
P0153 87H 04H Response rate: Response ratio (lean
to rich)
P0153 88H 04H Response rate: Respon
se ratio (rich to
lean)
P2A03 or P2098 89H 84H The amount of shift in air fuel ratio (too
lean)
P2A03 or P2099 8AH 84H The amount of shift in air fuel ratio (too
rich)
P0150 8BH 0BH Difference in sensor output voltage
P0153 8CH 83H Response gain at the limited frequency
P014E 8DH 04H O2 sensor slow response - Rich to
lean bank 2 sensor 1
P014E 8EH 04H O2 sensor slow response - Rich to
lean bank 2 sensor 1
P014F 8FH 84H O2 sensor slow response - Lean to rich
bank 2 sensor 1
P014F 90H 84H O2 sensor slow response - Lean to rich
bank 2 sensor 1
P015C 91H 01H O2 sensor delayed response - Rich to
lean bank 2 sensor 1
P015C 92H 01H O2 sensor delayed response - Rich to
lean bank 2 sensor 1
P015D 93H 01H O2 sensor delayed response - Lean to
rich bank 2 sensor 1
Item
OBD-
MID Self-diagnostic test item
DTCTest value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
Revision: August 2015 2016 Versa Note
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ECM
EC-93
< ECU DIAGNOSIS INFORMATION > [HR16DE]
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HO2S 05H
Air fuel ratio (A/F) sensor 1
(Bank 2) P015D 94H 01H
O2 sensor delayed response - Lean to
rich bank 2 sensor 1
P0153 95H 04H Response rate: Response ratio (lean
to rich)
P0153 96H 84H Response rate: Response ratio (rich to
lean)
06H Heated oxygen sensor 2
(Bank 2) P0158 07H 0CH
Minimum sensor output voltage for test
cycle
P0157 08H 0CH Maximum sensor output voltage for
test cycle
P0158 80H 0CH Sensor output voltage
P0159 81H 0CH Difference in sensor output voltage
P0159 82H 11H Rear O2 sensor delay response diag-
nosis
07H Heated oxygen sensor 3
(Bank2) P0163 07H 0CH
Minimum sensor output voltage for test
cycle
P0164 08H 0CH Maximum sensor output voltage for
test cycle
P0166 80H 0CH Sensor output voltage
P0165 81H 0CH Difference in sensor output voltage
CATA-
LY S T 21H
Three way catalyst function
(Bank1) P0420 80H 01H O2 storage index
P0420 82H 01H
Switching time lag engine exhaust in-
dex value
P2423 83H 0CH Difference in 3rd O2 sensor output
voltage
P2423 84H 84H O2 storage index in HC trap catalyst
22H Three way catalyst function
(Bank2) P0430 80H 01H O2 storage index
P0430 82H 01H
Switching time lag engine exhaust in-
dex value
P2424 83H 0CH Difference in 3rd O2 sensor output
voltage
P2424 84H 84H O2 storage index in HC trap catalyst
EGR
SYSTEM 31H EGR function P0400 80H 96H
Low flow faults: EGR temp change rate
(short term)
P0400 81H 96H Low flow faults: EGR temp change rate
(long term)
P0400 82H 96H Low flow faults: Difference between
max EGR temp and EGR temp under
idling condition
P0400 83H 96H Low flow faults: Max EGR temp
P1402 84H 96H High Flow Faults: EGR temp increase
rate
P0402 85H FCH EGR differential pressure high flow
P0401 86H 37H EGR differential pressure low flow
P2457 87H 96H EGR temperature
Item
OBD-
MID Self-diagnostic test item
DTCTest value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-94
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
VVT
SYSTEM35H VVT Monitor (Bank1)
P0011 80H 9DH
VTC intake function diagnosis (VTC
alignment check diagnosis)
P0014 81H 9DH VTC exhaust function diagnosis (VTC
alignment check diagnosis)
P0011 82H 9DH VTC intake function diagnosis (VTC
drive failure diagnosis)
P0014 83H 9DH VTC exhaust function diagnosis (VTC
drive failure diagnosis)
P100A 84H 10H VEL slow response diagnosis P1090 85H 10H VEL servo system diagnosis
P0011 86H 9DH VTC intake intermediate lock function
diagnosis (VTC intermediate position
alignment check diagnosis)
Advanced: P052A Retarded: P052B 87H 9DHVTC intake intermediate lock system
diagnosis (VTC intermediate lock posi-
tion check diagnosis)
36H VVT Monitor (Bank2) P0021 80H 9DH
VTC intake function diagnosis (VTC
alignment check diagnosis)
P0024 81H 9DH VTC exhaust function diagnosis (VTC
alignment check diagnosis)
P0021 82H 9DH VTC intake function diagnosis (VTC
drive failure diagnosis)
P0024 83H 9DH VTC exhaust function diagnosis (VTC
drive failure diagnosis)
P100B 84H 10H VEL slow response diagnosis P1093 85H 10H VEL servo system diagnosis
P0021 86H 9DH VTC intake intermediate lock function
diagnosis (VTC intermediate position
alignment check diagnosis)
Advanced: P052C Retarded: P052D 87H 9DHVTC intake intermediate lock system
diagnosis (VTC intermediate lock posi-
tion check diagnosis)
EVAP
SYSTEM 39H
EVAP control system leak
(Cap Off)
P0455 80H 0CHDifference in pressure sensor output
voltage before and after pull down
3BH EVAP control system leak
(Small leak) P0442 80H 05H
Leak area index (for more than 0.04
inch)
3CH EVAP control system leak
(Very small leak) P0456 80H 05H
Leak area index (for more than 0.02
inch)
P0456 81H FDH Maximum internal pressure of EVAP
system during monitoring
P0456 82H FDH Internal pressure of EVAP system at
the end of monitoring
3DH Purge flow system P0441 83H 0CHDifference in pressure sensor output
voltage before and after vent control
valve close
Item
OBD-
MID Self-diagnostic test item
DTCTest value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
Revision: August 2015 2016 Versa Note
cardiagn.com
BASIC INSPECTIONEC-133
< BASIC INSPECTION > [HR16DE]
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BASIC INSPECTION
Work ProcedureINFOID:0000000012431362
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
- Harness connectors for improper connections
- Wiring harness for improper connections, pinches and cut
- Vacuum hoses for splits, kinks and improper connections
- Hoses and ducts for leaks
- Air cleaner clogging
- Gasket
3. Confirm that electrical or mechanical loads are not applied.
- Headlamp switch is OFF.
- Air conditioner switch is OFF.
- Rear window defogger switch is OFF.
- Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no load.
6. Make sure that no DTC is displayed with CONSULT or GST.
Is any DTC detected?
YES >> GO TO 2.
NO >> GO TO 3.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3
3.CHECK TARGET IDLE SPEED
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
SEF983U
SEF976U
SEF977U
Revision: August 2015 2016 Versa Note
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HOW TO SET SRT CODEEC-139
< BASIC INSPECTION > [HR16DE]
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HOW TO SET SRT CODE
DescriptionINFOID:0000000012431364
OUTLINE
In order to set all SRTs, the self-diagnoses as in
the “SRT ITEM” table must have been performed at least
once. Each diagnosis may require actual driving for a long period of time under various conditions.
SRT ITEM
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: Though displayed on the CONSULT scr een, “HO2S HTR” is not SRT item.
SRT SERVICE PROCEDURE
If a vehicle has failed the state emissions inspection due to one or more SRT items indicating “INCMP”, review
the flowchart diagnostic sequence, referring to the following flowchart.
SRT item*
(CONSULT indication) Required self-diagnostic items to set the SRT to “CMPLT” Corresponding
DTC No.
CATALYST Three way catalyst function P0420
EVAP SYSTEM EVAP control system purge flow monitoring P0441
EVAP control system P0456
HO2S Air fuel ratio (A/F) sensor 1
P0130, P014C,
P014D, P015A,
P015B, P219C,
P219D, P219E,
P219F
Heated oxygen sensor 2 P0137
Heated oxygen sensor 2 P0138
Heated oxygen sensor 2 P0139
EGR/VVT SYSTEM Intake value timing control function P0011
Revision: August 2015 2016 Versa Note
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TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-155
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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8.CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> INSPECTION END
NO >> GO TO 9.
9.PERFORM POWER BALANCE TEST
1. Perform “POWER BALANCE ” in “ACTIVE TEST” mode.
2. Make sure that the each cylinder produces a momentary engine speed drop.
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
1. Ignition coil and its circuit (Refer to EC-454, "
Component Inspection (Ignition Coil with Power Transistor)".)
2. Fuel injector and its circuit (Refer to EC-447, "
Component Inspection".)
3. Intake air leakage
4. Low compression pressure (Refer to EM-13, "
Inspection".)
Is the inspection result normal?
YES >> Replace fuel injector (Refer to EM-40, "Removal and Installation"), and then GO TO 11.
NO >> Repair or replace malfunctioning part and then GO TO 11.
11 .CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> INSPECTION END
NO >> GO TO 12.
12.CHECK A/F SENSOR 1 FUNCTION
Perform all DTC CONFIRMATION PROC EDURE related with A/F sensor 1.
• For DTC P0130, refer to EC-213, "
DTC Logic".
• For DTC P0131, refer to EC-217, "
DTC Logic".
• For DTC P0132, refer to EC-220, "
DTC Logic".
• For DTC P2096, P2097, refer to EC-398, "
DTC Logic".
Is any DTC detected?
YES >> GO TO 15.
NO >> GO TO 13.
13.CHECK A/F SENSOR 1 CIRCUIT
Perform DIAGNOSTIC PROCEDURE according to corresponding DTC.
>> GO TO 14.
14.CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> INSPECTION END
NO >> GO TO 15.
15.DISCONNECT AND RECONNECT ECM HARNESS CONNECTOR
Revision: August 2015 2016 Versa Note
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P0101 MAF SENSOREC-187
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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
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