INFINITI FX35 2007 Service Manual

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-715
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Revision: 2006 July 2007 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-757,
"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-716, "
EMISSION-
RELATED DIAGNOSTIC INFOR-
MATION ITEMS" .) —
×—— ×———
Except above — — — ×— ×× —

EC-716
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 July 2007 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/
Te s t l i m i t
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000 1000*4—— 1 ×EC-820
CAN COMM CIRCUIT U1001
1001*4— — 1 or 2 — EC-820
CONTROL UNIT(CAN) U1010 1010 — — 1 ×EC-823
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. P0000 0000
———
Flashing *8EC-724
INT/V TIM CONT-B1 P0011 0011 — — 2 ×EC-825
INT/V TIM CONT-B2 P0021 0021 — — 2 ×EC-825
A/F SEN1 HTR (B1) P0031 0031 — ×2 ×EC-837
A/F SEN1 HTR (B1) P0032 0032 — ×2 ×EC-837
HO2S2 HTR (B1) P0037 0037 — ×2 ×EC-844
HO2S2 HTR (B1) P0038 0038 — ×2 ×EC-844
A/F SEN1 HTR (B2) P0051 0051 — ×2 ×EC-837
A/F SEN1 HTR (B2) P0052 0052 — ×2 ×EC-837
HO2S2 HTR (B2) P0057 0057 — ×2 ×EC-844
HO2S2 HTR (B2) P0058 0058 — ×2 ×EC-844
INT/V TIM V/CIR-B1 P0075 0075 — — 2 ×EC-852
INT/V TIM V/CIR-B2 P0081 0081 — — 2 ×EC-852
MAF SEN/CIRCUIT P0101 0101 — — 2 ×EC-859
MAF SEN/CIRCUIT P0102 0102 — — 1 ×EC-868
MAF SEN/CIRCUIT P0103 0103 — — 1 ×EC-868
IAT SEN/CIRCUIT P0112 0112 — — 2 ×EC-875
IAT SEN/CIRCUIT P0113 0113 — — 2 ×EC-875
ECT SEN/CIRC P0117 0117 — — 1 ×EC-880
ECT SEN/CIRC P0118 0118 — — 1 ×EC-880
TP SEN 2/CIRC P0122 0122 — — 1 ×EC-886
TP SEN 2/CIRC P0123 0123 — — 1 ×EC-886
ECT SENSOR P0125 0125 — — 2 ×EC-893
IAT SENSOR P0127 0127 — — 2 ×EC-896
THERMSTAT FNCTN P0128 0128 — — 2 ×EC-899
A/F SENSOR1 (B1) P0130 0130 — ×2 ×EC-901
A/F SENSOR1 (B1) P0131 0131 — ×2 ×EC-911
A/F SENSOR1 (B1) P0132 0132 — ×2 ×EC-920
A/F SENSOR1 (B1) P0133 0133 ××2×EC-929
HO2S2 (B1) P0137 0137 ××2×EC-941

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-717
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Revision: 2006 July 2007 FX35/FX45HO2S2 (B1) P0138 0138××2×EC-952
HO2S2 (B1) P0139 0139 ××2×EC-965
A/F SENSOR1 (B2) P0150 0150 — ×2 ×EC-901
A/F SENSOR1 (B2) P0151 0151 — ×2 ×EC-911
A/F SENSOR1 (B2) P0152 0152 — ×2 ×EC-920
A/F SENSOR1 (B2) P0153 0153 ××2×EC-929
HO2S2 (B2) P0157 0157 ××2×EC-941
HO2S2 (B2) P0158 0158 ××2×EC-952
HO2S2 (B2) P0159 0159 ××2×EC-965
FUEL SYS-LEAN-B1 P0171 0171 — — 2 ×EC-976
FUEL SYS-RICH-B1 P0172 0172 — — 2 ×EC-987
FUEL SYS-LEAN-B2 P0174 0174 — — 2 ×EC-976
FUEL SYS-RICH-B2 P0175 0175 — — 2 ×EC-987
FTT SENSOR P0181 0181 — — 2 ×EC-998
FTT SEN/CIRCUIT P0182 0182 — — 2 ×EC-1004
FTT SEN/CIRCUIT P0183 0183 — — 2 ×EC-1004
TP SEN 1/CIRC P0222 0222 — — 1 ×EC-1009
TP SEN 1/CIRC P0223 0223 — — 1 ×EC-1009
MULTI CYL MISFIRE P0300 0300 — — 2 ×EC-1016
CYL 1 MISFIRE P0301 0301 — — 2 ×EC-1016
CYL 2 MISFIRE P0302 0302 — — 2 ×EC-1016
CYL 3 MISFIRE P0303 0303 — — 2 ×EC-1016
CYL 4 MISFIRE P0304 0304 — — 2 ×EC-1016
CYL 5 MISFIRE P0305 0305 — — 2 ×EC-1016
CYL 6 MISFIRE P0306 0306 — — 2 ×EC-1016
CYL 7 MISFIRE P0307 0307 — — 2 ×EC-1016
CYL 8 MISFIRE P0308 0308 — — 2 ×EC-1016
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 — EC-1026
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-1026
KNOCK SEN/CIRC-B2 P0332 0332 — — 2 —EC-1026
KNOCK SEN/CIRC-B2 P0333 0333 — — 2 —EC-1026
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-1031
CMP SEN/CIRC-B1 P0340 0340 — — 2 ×EC-1038
TW CATALYST SYS-B1 P0420 0420 ××2×EC-1045
TW CATALYST SYS-B2 P0430 0430 ××2×EC-1045
EVAP PURG FLOW/MON P0441 0441 ××2×EC-1051
EVAP SMALL LEAK P0442 0442 ××2×EC-1056
PURG VOLUME CONT/V P0443 0443 — — 2 ×EC-1065
PURG VOLUME CONT/V P0444 0444 — — 2 ×EC-1073
PURG VOLUME CONT/V P0445 0445 — — 2 ×EC-1073
VENT CONTROL VALVE P0447 0447 — — 2 ×EC-1080
VENT CONTROL VALVE P0448 0448 — — 2 ×EC-1087
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 July 2007 FX35/FX45
EVAP SYS PRES SEN P0451 0451 — — 2 ×EC-1093
EVAP SYS PRES SEN P0452 0452 — — 2 ×EC-1096
EVAP SYS PRES SEN P0453 0453 — — 2 ×EC-1102
EVAP GROSS LEAK P0455 0455 — — 2 ×E C - 111 0
EVAP VERY SML LEAK P0456 0456
× *7× 2 ×E C - 111 8
FUEL LEV SEN SLOSH P0460 0460 — — 2 ×EC-1127
FUEL LEVEL SENSOR P0461 0461 — — 2 ×EC-1129
FUEL LEVL SEN/CIRC P0462 0462 — — 2 ×EC-1131
FUEL LEVL SEN/CIRC P0463 0463 — — 2 ×EC-1131
VEH SPEED SEN/CIRC*5P0500 0500 — — 2 ×EC-1133
ISC SYSTEM P0506 0506 — — 2 ×EC-1135
ISC SYSTEM P0507 0507 — — 2 ×EC-1137
PW ST P SEN/CIRC P0550 0550 — — 2 — EC-1139
ECM BACK UP/CIRCUIT P0603 0603 — — 2×EC-1144
ECM P0605 0605 — — 1 or 2 × or — EC-1148
SENSOR POWER/CIRC P0643 0643 — — 1 ×EC-1151
TCM P0700 0700 — — 1 ×AT- 111
PNP SW/CIRC P0705 0705 — — 2 ×AT- 11 2
ATF TEMP SEN/CIRC P0710 0710 — — 2 ×AT- 1 3 4
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- 1 2 5
A/T TCC S/V FNCTN P0744 0744 — — 2 ×AT- 1 2 7
L/PRESS SOL/CIRC P0745 0745 — — 2 ×AT- 1 2 9
P-N POS SW/CIRCUIT P0850 0850 — — 2 ×EC-1156
INTK TIM S/CIRC-B1 P1140 1140 — — 2 ×EC-1161
INTK TIM S/CIRC-B2 P1145 1145 — — 2 ×EC-1161
CLOSED LOOP-B1 P1148 1148 — — 1 ×EC-1170
CLOSED LOOP-B2 P1168 1168 — — 1 ×EC-1170
TCS C/U FUNCTN P1211 1211 — — 2 — EC-1171
TCS/CIRC P1212 1212 — — 2 —EC-1172
ENG OVER TEMP P1217 1217 — — 1×EC-1173
CTP LEARNING P1225 1225 — — 2 — EC-1185
CTP LEARNING P1226 1226 — — 2 —EC-1187
COLD START CONTROL P1421 1421 — — 2×EC-1189
ASCD SW P1564 1564 — — 1 — EC-1191

(Models
with ICC) EC-1198

(Models
with ASCD)
ACC COMMAND VALUE*
6P1568 1568 — — 1 — EC-1205
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Te s t l i m i t
(GST only) Trip MIL
Reference
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CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-719
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Revision: 2006 July 2007 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, 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-1206

(Models
with ICC) EC-1215

(Models
with ASCD)
ASCD VHL SPD SEN P1574 1574 — — 1 — EC-1223

(Models
with ICC) EC-1225

(Models
with ASCD)
NATS MALFUNCTION P1610 - P1615 1610 - 1615 — — 2 — EC-714
IN PULY SPEED P1715 1715 — — 2 —EC-1227
A/T INTERLOCK P1730 1730 — — 1×AT-141
I/C SOLENOID/CIRC P1752 1752 — — 1 ×AT-146
I/C SOLENOID FNCTN P1754 1754 — — 1 ×AT-148
FR/B SOLENOID/CIRC P1757 1757 — — 1 ×AT-150
FR/B SOLENOID FNCT P1759 1759 — — 1 ×AT-152
D/C SOLENOID/CIRC P1762 1762 — — 1 ×AT-154
D/C SOLENOID FNCTN P1764 1764 — — 1 ×AT-156
HLR/C SOL/CIRC P1767 1767 — — 1 ×AT-158
HLR/C SOL FNCTN P1769 1769 — — 1 ×AT-160
LC/B SOLENOID/CIRC P1772 1772 — — 1 ×AT-162
LC/B SOLENOID FNCT P1774 1774 — — 1 ×AT-164
VIAS S/V CIRC P1800 1800 — — 2 — EC-1228
BRAKE SW/CIRCUIT P1805 1805 — — 2 —EC-1233
ETC MOT PWR P2100 2100 — — 1×EC-1238
ETC FUNCTION/CIRC P2101 2101 — — 1 ×EC-1244
ETC MOT PWR P2103 2103 — — 1 ×EC-1238
ETC MOT P2118 2118 — — 1 ×EC-1251
ETC ACTR P2119 2119 — — 1 ×EC-1256
APP SEN 1/CIRC P2122 2122 — — 1 ×EC-1258
APP SEN 1/CIRC P2123 2123 — — 1 ×EC-1258
APP SEN 2/CIRC P2127 2127 — — 1 ×EC-1265
APP SEN 2/CIRC P2128 2128 — — 1 ×EC-1265
TP SENSOR P2135 2135 — — 1 ×EC-1272
APP SENSOR P2138 2138 — — 1 ×EC-1279
A/F SENSOR1 (B1) P2A00 2A00 — ×2 ×EC-1287
A/F SENSOR1 (B2) P2A03 2A03 — ×2 ×EC-1287
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Test limit
(GST only) Trip MIL
Reference
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CONSULT-II
GST*
2ECM*3

EC-720
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 July 2007 FX35/FX45
*8: When the ECM is in the mode of displaying SRT status, MIL may flash. For the details, refer to EC-724, "How to Display SRT Status"
.
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DTC number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously, and the 1st trip DTC did not reoccur, the 1st trip
DTC will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is stored in the ECM memory. The MIL will not
light up (two trip detection logic). If the same malfunction is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are stored in the ECM memory and the MIL lights up. In other words,
the DTC is stored in the ECM memory and the MIL lights up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
trips, only the 1st trip DTC will continue to be stored. For malfunctions that blink or light up the MIL during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
Procedures for clearing the DTC and the 1st trip DTC from the ECM memory are described in EC-728, "
HOW
TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .
For malfunctions in which 1st trip DTCs are displayed, refer to EC-716, "
EMISSION-RELATED DIAGNOSTIC
INFORMATION ITEMS" . These items are required by legal regulations to continuously monitor the system/
component. In addition, the items monitored non-continuously are also displayed on CONSULT-II.
1st trip DTC is specified in Service $07 of SAE J1979. 1st trip DTC detection occurs without lighting up the MIL
and therefore does not warn the driver of a malfunction. However, 1st trip DTC detection will not prevent the
vehicle from being tested, for example during Inspection/Maintenance (I/M) tests.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in Work Flow procedure Step 2, refer to EC-750, "
WORK FLOW" . Then perform DTC Con-
firmation Procedure or Overall Function Check to try to duplicate the malfunction. If the malfunction is dupli-
cated, the item requires repair.
How to Read DTC and 1st Trip DTC
DTC and 1st trip DTC can be read by the following methods.
With CONSULT-II
With GST
CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P0850, P1148, etc.
These DTCs are prescribed by SAE J2012.
(CONSULT-II also displays the malfunctioning component or system.)
No Tools
The number of blinks of the MIL in the Diagnostic Test Mode II (Self-Diagnostic Results) indicates the DTC.
Example: 0340, 0850, 1148, etc.
These DTCs are controlled by NISSAN.

1st trip DTC No. is the same as DTC No.

Output of a DTC indicates a malfunction. However, GST or the Diagnostic Test Mode II do not indi-
cate whether the malfunction is still occurring or has occurred in the past and has returned to nor-
mal. CONSULT-II can identify malfunction status as shown below. Therefore, using CONSULT-II (if
available) is recommended.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown below. DTC or 1st trip DTC of a malfunc-
tion is displayed in SELF-DIAGNOSTIC RESULTS mode of CONSULT-II. Time data indicates how many times
the vehicle was driven after the last detection of a DTC.
If the DTC is being detected currently, the time data will be [0].
If a 1st trip DTC is stored in the ECM, the time data will be [1t].
PBIB0911E

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-721
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Revision: 2006 July 2007 FX35/FX45
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-
perature, short term fuel trim, long term fuel trim, engine speed, vehicle speed, absolute throttle position, base
fuel schedule and intake air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II or
GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, see EC-784, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was stored in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different mal-
function is detected. There is no priority for 1st trip freeze frame data. However, once freeze frame data is
stored in the ECM memory, 1st trip freeze data is no longer stored (because only one freeze frame data or 1st
trip freeze frame data can be stored in the ECM). If freeze frame data is stored in the ECM memory and freeze
frame data with the same priority occurs later, the first (original) freeze frame data remains unchanged in the
ECM memory.
Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM mem-
ory is erased. Procedures for clearing the ECM memory are described in EC-728, "
HOW TO ERASE EMIS-
SION-RELATED DIAGNOSTIC INFORMATION" .
SYSTEM READINESS TEST (SRT) CODE
System Readiness Test (SRT) code is specified in Service $01 of SAE J1979.
As part of an enhanced emissions test for Inspection & Maintenance (I/M), certain states require the status of
SRT be used to indicate whether the ECM has completed self-diagnosis of major emission systems and com-
ponents. Completion must be verified in order for the emissions inspection to proceed.
If a vehicle is rejected for a State emissions inspection due to one or more SRT items indicating “INCMP”, use
the information in this Service Manual to set the SRT to “CMPLT”.
In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT
status will indicate “CMPLT” for each application system. Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.
Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer's
normal driving pattern; the SRT will indicate “INCMP” for these items.
NOTE:
The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM mem-
ory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will con-
tinue with the emissions test. However, if the SRT indicates “INCMP” for one or more of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If MIL is ON during the state emissions inspection, the vehicle is also returned to the customer untested even
though the SRT indicates “CMPLT” for all test items. Therefore, it is important to check SRT (“CMPLT”) and
DTC (No DTCs) before the inspection.
SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
Priority Items
1 Freeze frame data Misfire — DTC: P0300 - P0308
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

EC-722
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 July 2007 FX35/FX45
*: 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”

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-723
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45

When, during SRT driving pattern, 1st trip DTC (NG) is detected prior to “CMPLT” of SRT, the self-diagno-
sis memory must be erased from ECM after repair.

If the 1st trip DTC is erased, all the SRT will indicate “INCMP”.
NOTE:
SRT can be set as “CMPLT” together with the DTC(s). Therefore, DTC check must always be carried out
prior to the state emission inspection even though the SRT indicates “CMPLT”.
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 on the next page.
*1 EC-720, "How to Read DTC and 1st
Trip DTC"
*2EC-724, "How to Display SRT Sta-
tus"
*3 EC-724, "How to Set SRT Code"
PBIB2320E

EC-724
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 July 2007 FX35/FX45
How to Display SRT Status
WITH CONSULT-II
Selecting “SRT STATUS” in “DTC CONFIRMATION” mode with
CONSULT-II.
For items whose SRT codes are set, a “CMPLT” is displayed on the
CONSULT-II screen; for items whose SRT codes are not set,
“INCMP” is displayed.
A sample of CONSULT-II display for SRT code is shown in the fig-
ure.
“INCMP” means the self-diagnosis is incomplete and SRT is not set.
“CMPLT” means the self-diagnosis is complete and SRT is set.
NOTE:
Though displayed on the CONSULT-II screen, “HO2S HTR” is not
SRT item.
WITH GST
Selecting Service $01 with GST (Generic Scan Tool)
NO TOOLS
A SRT code itself can not be displayed while only SRT status can be.
1. Turn ignition switch ON and wait 20 seconds.
2. SRT status is indicated as shown below.

When all SRT codes are set, MIL lights up continuously.

When any SRT codes are not set, MIL will flash periodically for 10 seconds.
How to Set SRT Code
To set all SRT codes, self-diagnosis for the items indicated above must be performed one or more times. Each
diagnosis may require a long period of actual driving under various conditions.
WITH CONSULT-II
Perform corresponding DTC Confirmation Procedure one by one based on Performance Priority in the table
on EC-721, "
SRT Item" .
WITHOUT CONSULT-II
The most efficient driving pattern in which SRT codes can be properly set is explained on the next page. The
driving pattern should be performed one or more times to set all SRT codes.
SEF949Z
PBIB2317E