Nissan Pathfinder (2010 year). Instruction — part 298
EC-476
< ECU DIAGNOSIS >
[VQ40DE]
ECM
CATA-
LYST
21H
Three way catalyst function
(Bank1)
P0420
80H
01H
O2 storage index
P0420
82H
01H
Switching time lag engine exhaust index
value
P2423
83H
0CH
Difference in 3rd O2 sensor output volt-
age
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 index
value
P2424
83H
0CH
Difference in 3rd O2 sensor output volt-
age
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
VVT
SYSTEM
35H
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)
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)
Item
OBD-
MID
Self-diagnostic test item
DTC
Test value and Test
limit
(GST display)
Description
TID
Unit and
Scaling
ID
2010 Pathfinder
ECM
EC-477
< ECU DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
EVAP
SYSTEM
39H
EVAP control system leak
(Cap Off)
P0455
80H
0CH
Difference 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
0CH
Difference in pressure sensor output
voltage before and after vent control
valve close
O2 SEN-
SOR
HEATER
41H
A/F sensor 1 heater
(Bank 1)
Low Input:P0031
High Input:P0032
81H
0BH
Converted value of Heater electric cur-
rent to voltage
42H
Heated oxygen sensor 2 heat-
er (Bank 1)
Low Input:P0037
High Input:P0038
80H
0CH
Converted value of Heater electric cur-
rent to voltage
43H
Heated oxygen sensor 3 heat-
er (Bank 1)
P0043
80H
0CH
Converted value of Heater electric cur-
rent to voltage
45H
A/F sensor 1 heater
(Bank 2)
Low Input:P0051
High Input:P0052
81H
0BH
Converted value of Heater electric cur-
rent to voltage
46H
Heated oxygen sensor 2 heat-
er (Bank 2)
Low Input:P0057
High Input:P0058
80H
0CH
Converted value of Heater electric cur-
rent to voltage
47H
Heated oxygen sensor 3 heat-
er (Bank 2)
P0063
80H
0CH
Converted value of Heater electric cur-
rent to voltage
Second-
ary Air
71H
Secondary Air system
P0411
80H
01H
Secondary Air Injection System Incor-
rect Flow Detected
Bank1: P0491
Bank2: P0492
81H
01H
Secondary Air Injection System Insuffi-
cient Flow
P2445
82H
01H
Secondary Air Injection System Pump
Stuck Off
P2448
83H
01H
Secondary Air Injection System High
Airflow
Bank1: P2440
Bank2: P2442
84H
01H
Secondary Air Injection System Switch-
ing Valve Stuck Open
P2440
85H
01H
Secondary Air Injection System Switch-
ing Valve Stuck Open
P2444
86H
01H
Secondary Air Injection System Pump
Stuck On
FUEL
SYSTEM
81H
Fuel injection system function
(Bank 1)
P0171 or P0172
80H
2FH
Long term fuel trim
P0171 or P0172
81H
24H
The number of lambda control clamped
82H
Fuel injection system function
(Bank 2)
P0174 or P0175
80H
2FH
Long term fuel trim
P0174 or P0175
81H
24H
The number of lambda control clamped
Item
OBD-
MID
Self-diagnostic test item
DTC
Test value and Test
limit
(GST display)
Description
TID
Unit and
Scaling
ID
2010 Pathfinder
EC-478
< ECU DIAGNOSIS >
[VQ40DE]
ECM
MISFIRE
A1H
Multiple Cylinder Misfires
P0301
80H
24H
Misfiring counter at 1000 revolution of
the first cylinder
P0302
81H
24H
Misfiring counter at 1000 revolution of
the second cylinder
P0303
82H
24H
Misfiring counter at 1000 revolution of
the third cylinder
P0304
83H
24H
Misfiring counter at 1000 revolution of
the fourth cylinder
P0305
84H
24H
Misfiring counter at 1000 revolution of
the fifth cylinder
P0306
85H
24H
Misfiring counter at 1000 revolution of
the sixth cylinder
P0307
86H
24H
Misfiring counter at 1000 revolution of
the seventh cylinder
P0308
87H
24H
Misfiring counter at 1000 revolution of
the eighth cylinder
P0300
88H
24H
Misfiring counter at 1000 revolution of
the multiple cylinders
P0301
89H
24H
Misfiring counter at 200 revolution of the
first cylinder
P0302
8AH
24H
Misfiring counter at 200 revolution of the
second cylinder
P0303
8BH
24H
Misfiring counter at 200 revolution of the
third cylinder
P0304
8CH
24H
Misfiring counter at 200 revolution of the
fourth cylinder
P0305
8DH
24H
Misfiring counter at 200 revolution of the
fifth cylinder
P0306
8EH
24H
Misfiring counter at 200 revolution of the
sixth cylinder
P0307
8FH
24H
Misfiring counter at 200 revolution of the
seventh cylinder
P0308
90H
24H
Misfiring counter at 200 revolution of the
eighth cylinder
P0300
91H
24H
Misfiring counter at 1000 revolution of
the single cylinder
P0300
92H
24H
Misfiring counter at 200 revolution of the
single cylinder
P0300
93H
24H
Misfiring counter at 200 revolution of the
multiple cylinders
Item
OBD-
MID
Self-diagnostic test item
DTC
Test value and Test
limit
(GST display)
Description
TID
Unit and
Scaling
ID
2010 Pathfinder
ECM
EC-479
< ECU DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
How to Erase DTC
With CONSULT-III
The emission related diagnostic information in the ECM can be erased by selecting “ALL Erase” in the
“Description” of “FINAL CHECK” mode with CONSULT-III.
With GST
The emission related diagnostic information in the ECM can be erased by selecting Service $04 with GST.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform
TM-34, "OBD-II Diagnostic Trouble Code (DTC)"
. (The DTC in TCM will be erased.)
MISFIRE
A2H
No. 1 Cylinder Misfire
P0301
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0301
0CH
24H
Misfire counts for last/current driving cy-
cles
A3H
No. 2 Cylinder Misfire
P0302
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0302
0CH
24H
Misfire counts for last/current driving cy-
cles
A4H
No. 3 Cylinder Misfire
P0303
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0303
0CH
24H
Misfire counts for last/current driving cy-
cles
A5H
No. 4 Cylinder Misfire
P0304
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0304
0CH
24H
Misfire counts for last/current driving cy-
cles
A6H
No. 5 Cylinder Misfire
P0305
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0305
0CH
24H
Misfire counts for last/current driving cy-
cles
A7H
No. 6 Cylinder Misfire
P0306
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0306
0CH
24H
Misfire counts for last/current driving cy-
cles
A8H
No. 7 Cylinder Misfire
P0307
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0307
0CH
24H
Misfire counts for last/current driving cy-
cles
A9H
No. 8 Cylinder Misfire
P0308
0BH
24H
EWMA (Exponential Weighted Moving
Average) misfire counts for last 10 driv-
ing cycles
P0308
0CH
24H
Misfire counts for last/current driving cy-
cles
Item
OBD-
MID
Self-diagnostic test item
DTC
Test value and Test
limit
(GST display)
Description
TID
Unit and
Scaling
ID
2010 Pathfinder
EC-480
< ECU DIAGNOSIS >
[VQ40DE]
ECM
3. Select Service $04 with GST (Generic Scan Tool).
No Tools
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once.
Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Perform
TM-34, "OBD-II Diagnostic Trouble Code (DTC)"
. (The DTC in TCM will be erased.)
3. Change the diagnostic test mode from Mode II to Mode I by depressing the accelerator pedal. Refer to
EC-71, "Malfunction Indicator Lamp (MIL)"
•
If the battery is disconnected, the emission-related diagnostic information will be lost within 24
hours.
•
The following data are cleared when the ECM memory is erased.
- Diagnostic trouble codes
- 1st trip diagnostic trouble codes
- Freeze frame data
- 1st trip freeze frame data
- System readiness test (SRT) codes
- Test values
Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but all
of the data listed above, are cleared from the ECM memory during work procedures.
How to Erase Permanent DTC
When a DTC is stored in ECM
• When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL shutoff if the same mal-
function is not detected after performing the driving pattern for MIL shutoff three times in a raw.
When a DTC is not stored in ECM
• The erasing method depends on a permanent DTC stored in ECM. Refer to the following table.
×
: Applicable —: Not applicable
*: For group, refer to
EC-464, "Emission-related Diagnostic Information"
, “EMISSION-RELATED DIAGNOSTIC INFORMATION
ITEMS”.
Group A
*1: When the same malfunction is de-
tected in two consecutive trips, MIL
will illuminate.
*2: MIL will turn off after vehicle is driven
3 times (pattern B) without any mal-
functions.
JSBIA0063GB
Group
*
Perform “DTC CONFIRMATION PROCEDURE”
for applicable DTCs.
Driving pattern
B
D
A
×
—
—
B
—
×
×
2010 Pathfinder
ECM
EC-481
< ECU DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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. Turn ignition switch ON.
5. Check permanent DTC. Refer to
EC-464, "Emission-related Diagnostic Information"
, “How to Display Per-
manent DTC Status”.
6. Perform “DTC CONFIRMATION PROCEDURE” for DTCs which are the same as permanent DTCs stored
in ECM.
7. Turn ignition switch OFF and wait at least 10 seconds.
8. Turn ignition switch ON.
9. Turn ignition switch OFF and wait at least 10 seconds.
10. Turn ignition switch ON.
11. Check permanent DTC. Refer to
EC-464, "Emission-related Diagnostic Information"
, “How to Display Per-
manent DTC Status”.
12. Check that the permanent DTCs have been erased.
Group B
*1: When the same malfunction is de-
tected in two consecutive trips, MIL
will illuminate.
JSBIA0064GB
2010 Pathfinder
EC-482
< ECU DIAGNOSIS >
[VQ40DE]
ECM
NOTE:
• Drive the vehicle according to only driving patterns indicating “INCMP” in driving patterns B and D on the
“PERMANENT DTC STATUS” screen.
• When experiencing both driving pattern B and D during the same trip, the experience of driving pattern D is
counted by priority.
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. Turn ignition switch ON.
5. Check permanent DTC. Refer to
EC-464, "Emission-related Diagnostic Information"
, “How to Display Per-
manent DTC Status”.
6. Start engine and warm it up to normal operating temperature.
7. Drive the vehicle according to driving pattern D.
CAUTION:
• Always drive at a safe speed.
• Never erase self-diagnosis results.
• If self-diagnosis results are erased during the trip of driving pattern B or D, the counter of driving
pattern B or D is reset.
• If self-diagnosis results are erased during the trip of driving pattern B or D, an experience of driv-
ing pattern B and D during the same trip is not counted up.
8. Turn ignition switch OFF and wait at least 10 seconds.
9. Turn ignition switch ON.
10. Turn ignition switch OFF and wait at least 10 seconds.
11. Turn ignition switch ON.
12. Use “PERMANENT DTC WORK SUPPORT” to drive the vehicle according to driving pattern B.
*1: When the same malfunction is de-
tected in two consecutive trips, MIL
will illuminate.
*2: After experiencing Driving pattern B
and D, permanent DTC is erased.
*3: Indication does not change unless
the ignition switch is turned from ON
to OFF twice even after experiencing
Driving pattern B or D.
JSBIA0068GB
2010 Pathfinder
ECM
EC-483
< ECU DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
CAUTION:
• Always drive at a safe speed.
• Never erase self-diagnosis results.
• If self-diagnosis results are erased during the trip of driving pattern B or D, the counter of driving
pattern B or D is reset.
• If self-diagnosis results are erased during the trip of driving pattern B or D, an experience of driv-
ing pattern B and D during the same trip is not counted up.
13. Turn ignition switch OFF and wait at least 10 seconds.
14. Turn ignition switch ON.
15. Turn ignition switch OFF and wait at least 10 seconds.
16. Turn ignition switch ON.
17. Check permanent DTC. Refer to
EC-464, "Emission-related Diagnostic Information"
, “How to Display Per-
manent DTC Status”.
18. Check that the permanent DTCs have been erased.
2010 Pathfinder
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