EC-714
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionNBS004JR
The ECM has an on board diagnostic system, which detects malfunctions related to engine sensors or actua-
tors. The ECM also records various emission-related diagnostic information including:
The above information can be checked using procedures listed in the table below.
× : Applicable —: Not applicable
*: When DTC and 1st trip DTC simultaneously appear on the display, they cannot be clearly distinguished from each other.
The malfunction indicator lamp (MIL) on the instrument panel lights up when the same malfunction is detected
in two consecutive trips (Two trip detection logic), or when the ECM enters fail-safe mode. (Refer to EC-756,
"Fail-Safe Chart" .)
Two Trip Detection LogicNBS004JS
When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not light up at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL lights up. The MIL lights up at the same time when the DTC is stored. <2nd
trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation. Specific on board diagnostic items will cause the ECM to light up or blink the MIL,
and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
× : Applicable —: Not applicable
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting up MIL when there is
malfunction on engine control system.
Emission-related diagnostic information Diagnostic service
Diagnostic Trouble Code (DTC) Service $03 of SAE J1979
Freeze Frame data Service $02 of SAE J1979
System Readiness Test (SRT) code Service $01 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Service $07 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Service $06 of SAE J1979
Calibration ID Service $09 of SAE J1979
DTC 1st trip DTC Freeze
Frame data 1st trip Freeze
Frame data SRT code SRT status Test value
CONSULT-II ×× × × × × —
GST ×× × —×××
ECM ××*— — — ×—
Items MIL DTC 1st trip DTC
1st trip 2nd trip 1st trip
displaying 2nd trip
displaying 1st trip
displaying 2nd trip
display- ing
Blinking Lighting
up Blinking
Lighting
up
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected ×
———— — ×—
Misfire (Possible three way cata-
lyst damage) — DTC: P0300 -
P0308 is being detected ——
×—— ×——
One trip detection diagnoses
(Refer to EC-715, "
EMISSION-
RELATED DIAGNOSTIC INFOR-
MATION ITEMS" .) —
×—— ×———
Except above — — — ×— ×× —
ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-715
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Revision: 2006 December 2006 FX35/FX45
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 control 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 InformationNBS004JT
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-II screen terms) DTC*
1
SRT code
Test value/
Test limit
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000 1000*4—— 1 ×EC-819
CAN COMM CIRCUIT U1001
1001*4—— 2 — EC-819
CONTROL UNIT(CAN) U1010 1010 — — 1 ×EC-822
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. P0000 0000
———
Flashing *8—
INT/V TIM CONT-B1 P0011 0011 — — 2 ×EC-824
INT/V TIM CONT-B2 P0021 0021 — — 2 ×EC-824
A/F SEN1 HTR (B1) P0031 0031 — ×2 ×EC-836
A/F SEN1 HTR (B1) P0032 0032 — ×2 ×EC-836
HO2S2 HTR (B1) P0037 0037 — ×2 ×EC-843
HO2S2 HTR (B1) P0038 0038 — ×2 ×EC-843
A/F SEN1 HTR (B2) P0051 0051 — ×2 ×EC-836
A/F SEN1 HTR (B2) P0052 0052 — ×2 ×EC-836
HO2S2 HTR (B2) P0057 0057 — ×2 ×EC-843
HO2S2 HTR (B2) P0058 0058 — ×2 ×EC-843
INT/V TIM V/CIR-B1 P0075 0075 — — 2 ×EC-851
INT/V TIM V/CIR-B2 P0081 0081 — — 2 ×EC-851
MAF SEN/CIRCUIT P0101 0101 — — 2 ×EC-858
MAF SEN/CIRCUIT P0102 0102 — — 1 ×EC-867
MAF SEN/CIRCUIT P0103 0103 — — 1 ×EC-867
IAT SEN/CIRCUIT P0112 0112 — — 2 ×EC-874
IAT SEN/CIRCUIT P0113 0113 — — 2 ×EC-874
ECT SEN/CIRC P0117 0117 — — 1 ×EC-879
ECT SEN/CIRC P0118 0118 — — 1 ×EC-879
TP SEN 2/CIRC P0122 0122 — — 1 ×EC-885
TP SEN 2/CIRC P0123 0123 — — 1 ×EC-885
ECT SENSOR P0125 0125 — — 2 ×EC-892
IAT SENSOR P0127 0127 — — 2 ×EC-895
THERMSTAT FNCTN P0128 0128 — — 2 ×EC-898
A/F SENSOR1 (B1) P0130 0130 — ×2 ×EC-900
A/F SENSOR1 (B1) P0131 0131 — ×2 ×EC-910
A/F SENSOR1 (B1) P0132 0132 — ×2 ×EC-919
A/F SENSOR1 (B1) P0133 0133 ××2×EC-928
HO2S2 (B1) P0137 0137 ××2×EC-940
EC-716
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
HO2S2 (B1) P0138 0138 ××2×EC-951
HO2S2 (B1) P0139 0139 ××2×EC-964
A/F SENSOR1 (B2) P0150 0150 — ×2 ×EC-900
A/F SENSOR1 (B2) P0151 0151 — ×2 ×EC-910
A/F SENSOR1 (B2) P0152 0152 — ×2 ×EC-919
A/F SENSOR1 (B2) P0153 0153 ××2×EC-928
HO2S2 (B2) P0157 0157 ××2×EC-940
HO2S2 (B2) P0158 0158 ××2×EC-951
HO2S2 (B2) P0159 0159 ××2×EC-964
FUEL SYS-LEAN-B1 P0171 0171 — — 2 ×EC-975
FUEL SYS-RICH-B1 P0172 0172 — — 2 ×EC-986
FUEL SYS-LEAN-B2 P0174 0174 — — 2 ×EC-975
FUEL SYS-RICH-B2 P0175 0175 — — 2 ×EC-986
FTT SENSOR P0181 0181 — — 2 ×EC-997
FTT SEN/CIRCUIT P0182 0182 — — 2 ×EC-1003
FTT SEN/CIRCUIT P0183 0183 — — 2 ×EC-1003
TP SEN 1/CIRC P0222 0222 — — 1 ×EC-1008
TP SEN 1/CIRC P0223 0223 — — 1 ×EC-1008
MULTI CYL MISFIRE P0300 0300 — — 2 ×EC-1015
CYL 1 MISFIRE P0301 0301 — — 2 ×EC-1015
CYL 2 MISFIRE P0302 0302 — — 2 ×EC-1015
CYL 3 MISFIRE P0303 0303 — — 2 ×EC-1015
CYL 4 MISFIRE P0304 0304 — — 2 ×EC-1015
CYL 5 MISFIRE P0305 0305 — — 2 ×EC-1015
CYL 6 MISFIRE P0306 0306 — — 2 ×EC-1015
CYL 7 MISFIRE P0307 0307 — — 2 ×EC-1015
CYL 8 MISFIRE P0308 0308 — — 2 ×EC-1015
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 — EC-1025
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-1025
KNOCK SEN/CIRC-B2 P0332 0332 — — 2 —EC-1025
KNOCK SEN/CIRC-B2 P0333 0333 — — 2 —EC-1025
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-1030
CMP SEN/CIRC-B1 P0340 0340 — — 2 ×EC-1037
TW CATALYST SYS-B1 P0420 0420 ××2×EC-1044
TW CATALYST SYS-B2 P0430 0430 ××2×EC-1044
EVAP PURG FLOW/MON P0441 0441 ××2×EC-1049
EVAP SMALL LEAK P0442 0442 ××2×EC-1054
PURG VOLUME CONT/V P0443 0443 — — 2 ×EC-1063
PURG VOLUME CONT/V P0444 0444 — — 2 ×EC-1071
PURG VOLUME CONT/V P0445 0445 — — 2 ×EC-1071
VENT CONTROL VALVE P0447 0447 — — 2 ×EC-1078
VENT CONTROL VALVE P0448 0448 — — 2 ×EC-1085
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Te s t l i m i t
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3
ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-717
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Revision: 2006 December 2006 FX35/FX45EVAP SYS PRES SEN P0451 0451 — — 2 ×EC-1091
EVAP SYS PRES SEN P0452 0452 — — 2 ×EC-1094
EVAP SYS PRES SEN P0453 0453 — — 2 ×EC-1100
EVAP GROSS LEAK P0455 0455 — — 2 ×EC-1108
EVAP VERY SML LEAK P0456 0456
× *7× 2 ×E C - 111 6
FUEL LEV SEN SLOSH P0460 0460 — — 2 ×EC-1125
FUEL LEVEL SENSOR P0461 0461 — — 2 ×EC-1127
FUEL LEVL SEN/CIRC P0462 0462 — — 2 ×EC-1129
FUEL LEVL SEN/CIRC P0463 0463 — — 2 ×EC-1129
VEH SPEED SEN/CIRC*5P0500 0500 — — 2 ×EC-1131
ISC SYSTEM P0506 0506 — — 2 ×EC-1133
ISC SYSTEM P0507 0507 — — 2 ×EC-1135
PW ST P SEN/CIRC P0550 0550 — — 2 — EC-1137
ECM BACK UP/CIRCUIT P0603 0603 — — 2×EC-1142
ECM P0605 0605 — — 1 or 2 × or — EC-1146
SENSOR POWER/CIRC P0643 0643 — — 1 ×EC-1149
TCM P0700 0700 — — 1 ×AT- 111
PNP SW/CIRC P0705 0705 — — 2 ×AT- 11 2
ATF TEMP SEN/CIRC P0710 0710 — — 2 ×AT-134
TURBINE SENSOR P0717 0717 — — 2 ×AT- 11 6
VEH SPD SEN/CIR AT*5P0720 0720 — — 2 ×AT- 11 8
TCC SOLENOID/CIRC P0740 0740 — — 2 ×AT-125
A/T TCC S/V FNCTN P0744 0744 — — 2 ×AT-127
L/PRESS SOL/CIRC P0745 0745 — — 2 ×AT-129
P-N POS SW/CIRCUIT P0850 0850 — — 2 ×EC-1154
INTK TIM S/CIRC-B1 P1140 1140 — — 2 ×EC-1159
INTK TIM S/CIRC-B2 P1145 1145 — — 2 ×EC-1159
CLOSED LOOP-B1 P1148 1148 — — 1 ×EC-1168
CLOSED LOOP-B2 P1168 1168 — — 1 ×EC-1168
TCS C/U FUNCTN P1211 1211 — — 2 — EC-1169
TCS/CIRC P1212 1212 — — 2 —EC-1170
ENG OVER TEMP P1217 1217 — — 1×EC-1171
CTP LEARNING P1225 1225 — — 2 — EC-1183
CTP LEARNING P1226 1226 — — 2 —EC-1185
ASCD SW P1564 1564 — — 1 — EC-1187
(Models
with ICC) EC-1194
(Models
with ASCD)
ACC COMMAND VALUE*
6P1568 1568 — — 1 — EC-1201
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Test limit
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3
EC-718
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-II.
*5: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*6: Models with ICC.
*7: SRT code will not be set if the self-diagnostic result is NG. ASCD BRAKE SW P1572 1572 — — 1 —
EC-1202
(Models
with ICC) EC-1211
(Models
with ASCD)
ASCD VHL SPD SEN P1574 1574 — — 1 — EC-1219
(Models
with ICC) EC-1221
(Models
with ASCD)
NATS MALFUNCTION P1610 - P1615 1610 - 1615 — — 2 — EC-713
IN PULY SPEED P1715 1715 — — 2 —EC-1223
A/T INTERLOCK P1730 1730 — — 1×AT- 1 4 1
I/C SOLENOID/CIRC P1752 1752 — — 1 ×AT- 1 4 6
I/C SOLENOID FNCTN P1754 1754 — — 1 ×AT- 1 4 8
FR/B SOLENOID/CIRC P1757 1757 — — 1 ×AT- 1 5 0
FR/B SOLENOID FNCT P1759 1759 — — 1 ×AT- 1 5 2
D/C SOLENOID/CIRC P1762 1762 — — 1 ×AT- 1 5 4
D/C SOLENOID FNCTN P1764 1764 — — 1 ×AT- 1 5 6
HLR/C SOL/CIRC P1767 1767 — — 1 ×AT- 1 5 8
HLR/C SOL FNCTN P1769 1769 — — 1 ×AT- 1 6 0
LC/B SOLENOID/CIRC P1772 1772 — — 1 ×AT- 1 6 2
LC/B SOLENOID FNCT P1774 1774 — — 1 ×AT- 1 6 4
VIAS S/V CIRC P1800 1800 — — 2 — EC-1224
BRAKE SW/CIRCUIT P1805 1805 — — 2 —EC-1229
ETC MOT PWR P2100 2100 — — 1×EC-1234
ETC FUNCTION/CIRC P2101 2101 — — 1 ×EC-1240
ETC MOT PWR P2103 2103 — — 1 ×EC-1234
ETC MOT P2118 2118 — — 1 ×EC-1247
ETC ACTR P2119 2119 — — 1 ×EC-1252
APP SEN 1/CIRC P2122 2122 — — 1 ×EC-1254
APP SEN 1/CIRC P2123 2123 — — 1 ×EC-1254
APP SEN 2/CIRC P2127 2127 — — 1 ×EC-1261
APP SEN 2/CIRC P2128 2128 — — 1 ×EC-1261
TP SENSOR P2135 2135 — — 1 ×EC-1268
APP SENSOR P2138 2138 — — 1 ×EC-1275
A/F SENSOR1 (B1) P2A00 2A00 — ×2 ×EC-1283
A/F SENSOR1 (B2) P2A03 2A03 — ×2 ×EC-1283
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Te s t l i m i t
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3
ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-721
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*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the pr iority for
models with CONSULT-II.
SRT Set Timing
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. The set timing is different between OK and NG results and
is shown in the table below.
OK: Self-diagnosis is carried out and the result is OK.
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.
When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective self-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indi-
cate “CMPLT”. → Case 3 above
The table above shows that the minimum number of cycles for setting SRT as “INCMP” is one (1) for each
self-diagnosis (Case 1 & 2) or two (2) for one of self-diagnoses (Case 3). However, in preparation for the state
emissions inspection, it is unnecessary for each self-diagnosis to be executed twice (Case 3) for the following
reasons:
The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.
The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.
SRT item
(CONSULT-II indication) Performance
Priority* Required self-diagnostic items to set the SRT to “CMPLT” Corresponding
DTC No.
CATALYST 2 Three way catalyst function P0420, P0430
EVAP SYSTEM 2 EVAP control system purge flow monitoring P0441 1 EVAP control system P0442
2 EVAP control system P0456
HO2S 2 Air fuel ratio (A/F) sensor 1 P0133, P0153 Heated oxygen sensor 2 P0137, P0157
Heated oxygen sensor 2 P0138, P0158
Heated oxygen sensor 2 P0139, P0159
Self-diagnosis result Example
Diagnosis Ignition cycle
← ON → OFF ← ON → OFF ← ON → OFF ← ON →
All OK Case 1 P0400 OK (1) — (1) OK (2) — (2) P0402 OK (1) — (1) — (1) OK (2)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “CMPLT” “CMPLT” “CMPLT” “CMPLT”
Case 2 P0400 OK (1) — (1) — (1) — (1) P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”
NG exists Case 3 P0400 OK OK — — P0402 — — — —
P1402 NG — NG NG
(Consecutive NG)
(1st trip) DTC 1st trip DTC — 1st trip DTC DTC
(= MIL ON)
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”
EC-726
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)
The following is the information specified in Service $06 of SAE J1979.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.
Item Self-diagnostic test item DTC Test value (GST display)
Test limit Conversion
TID CID
CATALYST Three way catalyst function (Bank 1)
P0420 01H 01H Max. 1/128
P0420 02H 81H Min. 1
Three way catalyst function (Bank 2) P0430 03H 02H Max. 1/128
P0430 04H 82H Min. 1
EVAP
SYSTEM EVAP control system (Small leak) P0442 05H 03H Max.
1/128 mm
2
EVAP control system purge flow monitoring P0441 06H 83H Min. 20 mV
EVAP control system (Very small leak) P0456 07H 03H Max. 1/128 mm
2
HO2S Air fuel ratio (A/F) sensor 1 (Bank 1)
P0131 41H 8EH Min. 5mV
P0132 42H 0EH Max. 5mV
P2A00 43H 0EH Max. 0.002
P2A00 44H 8EH Min. 0.002
P0133 45H 8EH Min. 0.002
P0130 46H 0EH Max. 5mV
P0130 47H 8EH Min. 5mV
P0133 48H 8EH Min. 0.002
Air fuel ratio (A/F) sensor 1 (Bank 2) P0151 4CH 8FH Min. 5mV
P0152 4DH 0FH Max. 5mV
P2A03 4EH 0FH Max. 0.002
P2A03 4FH 8FH Min. 0.002
P0153 50H 8FH Min. 0.002
P0150 51H 0FH Max. 5mV
P0150 52H 8FH Min. 5mV
P0153 53H 8FH Min. 0.002
Heated oxygen sensor 2 (Bank 1) P0139 19H 86H Min. 10mV/500 ms
P0137 1AH 86H Min. 10 mV
P0138 1BH 06H Max. 10 mV
P0138 1CH 06H Max. 10mV
Heated oxygen sensor 2 (Bank 2) P0159 21H 87H Min. 10 mV/500 ms
P0157 22H 87H Min. 10 mV
P0158 23H 07H Max. 10 mV
P0158 24H 07H Max. 10mV
ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-727
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Revision: 2006 December 2006 FX35/FX45
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
How to Erase DTC
WITH CONSULT-II
The emission related diagnostic information in the ECM can be erased by selecting “ERASE” in the “SELF-
DIAG RESULTS” mode with CONSULT-II.
If DTCs are displayed for both ECM and TCM (Transmission control module), they need to be erased individu-
ally from the ECM and TCM (Transmission control module).
NOTE:
If the DTC is not for A/T related items (see EC-676, "
INDEX FOR DTC" ), skip steps 2 through 4.
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. Turn CONSULT-II ON and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. [The DTC in the TCM (Transmission control module) will be erased.] Then touch “BACK” twice.
5. Touch “ENGINE”.
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
HO2S
HEATER A/F sensor 1 heater (Bank 1)
P0032 57H 10H Max. 5 mV
P0031 58H 90H Min. 5 mV
A/F sensor 1 heater (Bank 2) P0052 59H 11H Max. 5 mV
P0051 5AH 91H Min. 5 mV
Heated oxygen sensor 2 heater (Bank 1) P0038 2DH 0AH Max. 20 mV
P0037 2EH 8AH Min. 20 mV
Heated oxygen sensor 2 heater (Bank 2) P0058 2FH 0BH Max. 20 mV
P0057 30H 8BH Min. 20 mV
Item Self-diagnostic test item DTC
Test value (GST display)
Test limit Conversion
TID CID