lightin INFINITI FX35 2004 Workshop Manual

EC-664
[VK45DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
HO2S1 HTR (B2) P0051 0051 2×EC-806
HO2S1 HTR (B2) P0052 0052 2×EC-806
HO2S2 (B1) P0138 0138 2×EC-894
HO2S2 (B1) P0139 0139 2×EC-903
HO2S2 (B1) P1146 1146 2×E C - 111 6
HO2S2 (B1) P1147 1147 2×EC-1127
HO2S2 (B2) P0158 0158 2×EC-894
HO2S2 (B2) P0159 0159 2×EC-903
HO2S2 (B2) P1166 1166 2×E C - 111 6
HO2S2 (B2) P1167 1167 2×EC-1127
HO2S2 HTR (B1) P0037 0037 2×EC-814
HO2S2 HTR (B1) P0038 0038 2×EC-814
HO2S2 HTR (B2) P0057 0057 2×EC-814
HO2S2 HTR (B2) P0058 0058 2×EC-814
I/C SOLENOID/CIRC P1752 1752 1×AT-152
I/C SOLENOID FNCTN P1754 1754 1×AT-154
IAT SEN/CIRCUIT P0112 0112 2×EC-837
IAT SEN/CIRCUIT P0113 0113 2×EC-837
IAT SENSOR P0127 0127 2×EC-858
INT/V TIM CONT-B1 P0011 0011 2×EC-795
INT/V TIM CONT-B2 P0021 0021 2×EC-795
I N T / V T I M V / C I R - B 1 P 1111 1111 2×EC-1070
INT/V TIM V/CIR-B2 P1136 1136 2×EC-1070
INTK TIM S/CIRC-B1 P1140 1140 2×EC-1095
INTK TIM S/CIRC-B2 P1145 1145 2×EC-1095
ISC SYSTEM P0506 0506 2×EC-1048
ISC SYSTEM P0507 0507 2×EC-1050
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-955
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-955
KNOCK SEN/CIRC-B2 P0332 0332 2 —EC-955
KNOCK SEN/CIRC-B2 P0333 0333 2 —EC-955
L/PRESS SOL/CIRC P0745 0745 2×AT-127
LC/B SOLENOID FNCT P1774 1774 1×AT-170
LC/B SOLENOID/CIRC P1772 1772 1×AT-168
MAF SEN/CIRCUIT P0101 0101 1×EC-822
MAF SEN/CIRCUIT P0102 0102 1×EC-830
MAF SEN/CIRCUIT P0103 0103 1×EC-830
MAF SENSOR P1102 1102 1×EC-1064
MULTI CYL MISFIRE P0300 0300 2×EC-949
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —EC-717
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*4—
Flashing*4EC-718
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-665
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 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: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*7: Models with ICC
*8: Models with ASCD
DTC No. IndexABS00BYW
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-792, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
P-N POS SW/CIRCUIT P1706 1706 2×EC-1211
PNP SW/CIRC P0705 0705 2×AT- 11 2
PURG VOLUME CONT/V P0444 0444 2×EC-990
PURG VOLUME CONT/V P0445 0445 2×EC-990
PURG VOLUME CONT/V P1444 1444 2×EC-1160
PW ST P SEN/CIRC P0550 0550 2 —EC-1052
SENSOR POWER/CIRC P1229 1229 1×EC-1156
SHIFT SIG FNCTN P1780 1780 2 —EC-1218
TCC SOLENOID/CIRC P0740 0740 2×AT- 1 2 3
TCS C/U FUNCTN P1211 1211 2 —EC-1140
TCS/CIRC P1212 1212 2 —EC-1141
THERMSTAT FNCTN P0128 0128 2×EC-861
TP SEN 1/CIRC P0222 0222 1×EC-942
TP SEN 1/CIRC P0223 0223 1×EC-942
TP SEN 2/CIRC P0122 0122 1×EC-848
TP SEN 2/CIRC P0123 0123 1×EC-848
TP SENSOR P2135 2135 1×EC-1239
TURBINE REV S/CIRC P1716 1716 2×AT- 1 4 3
TW CATALYST SYS-B1 P0420 0420 2×EC-971
TW CATALYST SYS-B2 P0430 0430 2×EC-971
V/SP SEN(A/T OUT) P1720 1720 2 —EC-1216
VEH SPD SEN/CIR AT*6P0720 0720 2×AT- 11 6
VEH SPEED SEN/CIRC*6P0500 0500 2×EC-1046
VENT CONTROL VALVE P0447 0447 2×EC-997
VENT CONTROL VALVE P1446 1446 2×EC-1168
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-666
[VK45DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
×:Applicable —: Not applicable
DTC*
1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3
No DTC
Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
Flashing*4EC-718
U1000
1000*5CAN COMM CIRCUIT 1× or —EC-792
U1001
1001*5CAN COMM CIRCUIT 2 —EC-792
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0011 0011 INT/V TIM CONT-B1 2×EC-795
P0021 0021 INT/V TIM CONT-B2 2×EC-795
P0031 0031 HO2S1 HTR (B1) 2×EC-806
P0032 0032 HO2S1 HTR (B1) 2×EC-806
P0037 0037 HO2S2 HTR (B1) 2×EC-814
P0038 0038 HO2S2 HTR (B1) 2×EC-814
P0051 0051 HO2S1 HTR (B2) 2×EC-806
P0052 0052 HO2S1 HTR (B2) 2×EC-806
P0057 0057 HO2S2 HTR (B2) 2×EC-814
P0058 0058 HO2S2 HTR (B2) 2×EC-814
P0101 0101 MAF SEN/CIRCUIT 1×EC-822
P0102 0102 MAF SEN/CIRCUIT 1×EC-830
P0103 0103 MAF SEN/CIRCUIT 1×EC-830
P0112 0112 IAT SEN/CIRCUIT 2×EC-837
P0113 0113 IAT SEN/CIRCUIT 2×EC-837
P0117 0117 ECT SEN/CIRCUIT 1×EC-842
P0118 0118 ECT SEN/CIRCUIT 1×EC-842
P0122 0122 TP SEN 2/CIRC 1×EC-848
P0123 0123 TP SEN 2/CIRC 1×EC-848
P0125 0125 ECT SENSOR 1×EC-855
P0127 0127 IAT SENSOR 2×EC-858
P0128 0128 THERMSTAT FNCTN 2×EC-861
P0132 0132 HO2S1 (B1) 2×EC-863
P0133 0133 HO2S1 (B1) 2×EC-872
P0134 0134 HO2S1 (B1) 2×EC-884
P0138 0138 HO2S2 (B1) 2×EC-894
P0139 0139 HO2S2 (B1) 2×EC-903
P0152 0152 HO2S1 (B2) 2×EC-863
P0153 0153 HO2S1 (B2) 2×EC-872
P0154 0154 HO2S1 (B2) 2×EC-884
P0158 0158 HO2S2 (B2) 2×EC-894
P0159 0159 HO2S2 (B2) 2×EC-903
P0171 0171 FUEL SYS-LEAN-B1 2×EC-914
P0172 0172 FUEL SYS-RICH-B1 2×EC-923
P0174 0174 FUEL SYS-LEAN-B2 2×EC-914

INDEX FOR DTC
EC-667
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 FX35/FX45P0175 0175 FUEL SYS-RICH-B2 2×EC-923
P0181 0181 FTT SENSOR 2×EC-931
P0182 0182 FTT SEN/CIRCUIT 2×EC-937
P0183 0183 FTT SEN/CIRCUIT 2×EC-937
P0222 0222 TP SEN 1/CIRC 1×EC-942
P0223 0223 TP SEN 1/CIRC 1×EC-942
P0300 0300 MULTI CYL MISFIRE 2×EC-949
P0301 0301 CYL 1 MISFIRE 2×EC-949
P0302 0302 CYL 2 MISFIRE 2×EC-949
P0303 0303 CYL 3 MISFIRE 2×EC-949
P0304 0304 CYL 4 MISFIRE 2×EC-949
P0305 0305 CYL 5 MISFIRE 2×EC-949
P0306 0306 CYL 6 MISFIRE 2×EC-949
P0307 0307 CYL 7 MISFIRE 2×EC-949
P0308 0308 CYL 8 MISFIRE 2×EC-949
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-955
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-955
P0332 0332 KNOCK SEN/CIRC-B2 2 —EC-955
P0333 0333 KNOCK SEN/CIRC-B2 2 —EC-955
P0335 0335 CKP SEN/CIRCUIT 2×EC-960
P0340 0340 CMP SEN/CIRC-B1 2×EC-966
P0420 0420 TW CATALYST SYS-B1 2×EC-971
P0430 0430 TW CATALYST SYS-B2 2×EC-971
P0441 0441 EVAP PURG FLOW/MON 2×EC-976
P0442 0442 EVAP SMALL LEAK 2×EC-981
P0444 0444 PURG VOLUME CONT/V 2×EC-990
P0445 0445 PURG VOLUME CONT/V 2×EC-990
P0447 0447 VENT CONTROL VALVE 2×EC-997
P0451 0451 EVAP SYS PRES SEN 2×EC-1004
P0452 0452 EVAP SYS PRES SEN 2×EC-1007
P0453 0453 EVAP SYS PRES SEN 2×EC-1014
P0455 0455 EVAP GROSS LEAK 2×EC-1022
P0456 0456 EVAP VERY SML LEAK 2×EC-1030
P0460 0460 FUEL LEV SEN SLOSH 2×EC-1040
P0461 0461 FUEL LEVEL SENSOR 2×EC-1042
P0462 0462 FUEL LEVL SEN/CIRC 2×EC-1044
P0463 0463 FUEL LEVL SEN/CIRC 2×EC-1044
P0500 0500
VEH SPEED SEN/CIRC*62×EC-1046
P0506 0506 ISC SYSTEM 2×EC-1048
P0507 0507 ISC SYSTEM 2×EC-1050
P0550 0550 PW ST P SEN/CIRC 2 —EC-1052
P0605 0605 ECM 1 or 2× or —EC-1057
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-668
[VK45DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
P0705 0705 PNP SW/CIRC 2×AT- 11 2
P0710 0710 ATF TEMP SEN/CIRC 2×AT-139
P0720 0720
VEH SPD SEN/CIR AT*62×AT- 11 6
P0740 0740 TCC SOLENOID/CIRC 2×AT-123
P0744 0744 A/T TCC S/V FNCTN 2×AT-125
P0745 0745 L/PRESS SOL/CIRC 2×AT-127
P1065 1065 ECM BACK UP/CIRCUIT 2×EC-1060
P1102 1102 MAF SENSOR 1×EC-1064
P 1111 1111 I N T / V T I M V / C I R - B 1 2×EC-1070
P1121 1121 ETC ACTR 1×EC-1077
P1122 1122 ETC FUNCTION/CIRC 1×EC-1079
P1124 1124 ETC MOT PWR 1×EC-1085
P1126 1126 ETC MOT PWR 1×EC-1085
P1128 1128 ETC MOT 1×EC-1090
P1136 1136 INT/V TIM V/CIR-B2 2×EC-1070
P1140 1140 INTK TIM S/CIRC-B1 2×EC-1095
P1143 1143 HO2S1 (B1) 2×EC-1103
P1144 1144 HO2S1 (B1) 2×EC-1109
P1145 1145 INTK TIM S/CIRC-B2 2×EC-1095
P1146 1146 HO2S2 (B1) 2×E C - 111 6
P1147 1147 HO2S2 (B1) 2×EC-1127
P1148 1148 CLOSED LOOP-B1 1×EC-1138
P1163 1163 HO2S1 (B2) 2×EC-1103
P1164 1164 HO2S1 (B2) 2×EC-1109
P1166 1166 HO2S2 (B2) 2×E C - 111 6
P1167 1167 HO2S2 (B2) 2×EC-1127
P1168 1168 CLOSED LOOP-B2 1×EC-1138
P1211 1211 TCS C/U FUNCTN 2 —EC-1140
P1212 1212 TCS/CIRC 2 —EC-1141
P1217 1217 ENG OVER TEMP 1×EC-1142
P1225 1225 CTP LEARNING 2 —EC-1152
P1226 1226 CTP LEARNING 2 —EC-1154
P1229 1229 SENSOR POWER/CIRC 1×EC-1156
P1444 1444 PURG VOLUME CONT/V 2×EC-1160
P1446 1446 VENT CONTROL VALVE 2×EC-1168
P1564 1564
ASCD SW*7 *81—EC-1174,
EC-1181
P1568 1568
ACC COMMAND VALUE*71—EC-1188
P1572 1572
ASCD BRAKE SW*7 *81—EC-1189,
EC-1199
P1574 1574
ASCD VHL SPD SEN*7 *81—EC-1207,
EC-1209
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 —EC-717
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-669
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 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: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*7: Models with ICC
*8: Models with ASCDP1706 1706 P-N POS SW/CIRCUIT 2×EC-1211
P1716 1716 TURBINE REV S/CIRC 2×AT- 1 4 3
P1720 1720 V/SP SEN (A/T OUT) 2 —EC-1216
P1730 1730 A/T INTERLOCK 1×AT- 1 4 7
P1752 1752 I/C SOLENOID/CIRC 1×AT- 1 5 2
P1754 1754 I/C SOLENOID FNCTN 1×AT- 1 5 4
P1757 1757 FR/B SOLENOID/CIRC 1×AT- 1 5 6
P1759 1759 FR/B SOLENOID FNCT 1×AT- 1 5 8
P1762 1762 D/C SOLENOID/CIRC 1×AT- 1 6 0
P1764 1764 D/C SOLENOID FNCTN 1×AT- 1 6 2
P1767 1767 HLR/C SOL/CIRC 1×AT- 1 6 4
P1769 1769 HLR/C SOL FNCTN 1×AT- 1 6 6
P1772 1772 LC/B SOLENOID/CIRC 1×AT- 1 6 8
P1774 1774 LC/B SOLENOID FNCT 1×AT- 1 7 0
P1780 1780 SHIFT SIG FNCTN 2 —EC-1218
P1805 1805 BRAKE SW/CIRCUIT 2 —EC-1220
P2122 2122 APP SEN 1/CIRC 1×EC-1225
P2123 2123 APP SEN 1/CIRC 1×EC-1225
P2127 2127 APP SEN 2/CIRC 1×EC-1232
P2128 2128 APP SEN 2/CIRC 1×EC-1232
P2135 2135 TP SENSOR 1×EC-1239
P2138 2138 APP SENSOR 1×EC-1246
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-703
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 FX35/FX45
ON BOARD DIAGNOSTIC (OBD) SYSTEMPFP:00028
IntroductionABS00BZI
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-731
.)
Two Trip Detection LogicABS00BZJ
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 MIL up when there is
malfunction on engine control system.
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.
Emission-related diagnostic information SAE Mode
Diagnostic Trouble Code (DTC) Mode 3 of SAE J1979
Freeze Frame data Mode 2 of SAE J1979
System Readiness Test (SRT) code Mode 1 of SAE J1979
1st Trip Diagnostic Trouble Code (1st Trip DTC) Mode 7 of SAE J1979
1st Trip Freeze Frame data
Test values and Test limits Mode 6 of SAE J1979
Calibration ID Mode 9 of SAE J1979
DTC 1st trip DTCFreeze Frame
data1st trip Freeze
Frame dataSRT code Test value
CONSULT-II×× × × ×—
GST×× ×—××
ECM××*— ———
ItemsMIL DTC 1st trip DTC
1st trip 2nd trip
1st trip
displaying2nd trip
displaying1st trip
displaying2nd trip
display-
ing BlinkingLighting
upBlinkingLighting
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-662
.)—×——×———
Except above — — —×—××—

EC-708
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2004 November 2004 FX35/FX45
For malfunctions in which 1st trip DTCs are displayed, refer to EC-704, "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 Mode 7 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 vehi-
cle 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 II, refer to EC-727, "
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, P1148, P1706, 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, 1148, 1706, 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].
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, 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-764, "
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.
PBIB0911E

EC-718
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2004 November 2004 FX35/FX45
ON BOARD DIAGNOSTIC SYSTEM FUNCTION
The on board diagnostic system has the following four functions.
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting MIL up when there is
malfunction on engine control system.
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.
MIL Flashing Without DTC
If the ECM is in Diagnostic Test Mode II, MIL may flash when engine is running. In this case, check ECM diag-
nostic test mode. EC-719, "
HOW TO SWITCH DIAGNOSTIC TEST MODE" .
How to switch the diagnostic test (function) modes, and details of the above functions are described later. EC-
719, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .
The following emission-related diagnostic information is 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

Others
Diagnostic Test
ModeKEY and ENG.
Sta tusFunction Explanation of Function
Mode I Ignition switch in
ON position
Engine stoppedBULB CHECK This function checks the MIL bulb for damage (blown,
open circuit, etc.).
If the MIL does not come on, check MIL circuit.
Engine running MALFUNCTION
WARNINGThis is a usual driving condition. When a malfunction is
detected twice in two consecutive driving cycles (two trip
detection logic), the MIL will light up to inform the driver
that a malfunction has been detected.
The following malfunctions will light up or blink the MIL in
the 1st trip.

Misfire (Possible three way catalyst damage)

One trip detection diagnoses
Mode II Ignition switch in
ON position
Engine stoppedSELF-DIAGNOSTIC
RESULTSThis function allows DTCs and 1st trip DTCs to be read.
Engine running HEATED OXYGEN SENSOR 1
MONITORThis function allows the fuel mixture condition (lean or
rich), monitored by heated oxygen sensor 1, to be read.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut

EC-732
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45

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.
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.
P0117
P0118Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the time after turning
ignition switch ON or START.
CONSULT-II displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided
(CONSULT-II display)
Just as ignition switch is turned
ON or START40°C (104°F)
More than approx. 4 minutes after
ignition ON or START80°C (176°F)
Except as shown above40 - 80°C (104 - 176°F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P1121 Electric throttle control
actuator(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops,
the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or
more.
P1122 Electric throttle control
functionECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1124
P1126Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1128 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1229 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2122
P2123
P2127
P2128
P2138Accelerator pedal position
sensorThe ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor. DTC No. Detected items Engine operating condition in fail-safe mode
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut