P0123 NISSAN X-TRAIL 2005 Service Repair Manual

EC-2 DTC Confirmation Procedure ...............................137
Diagnostic Procedure ...........................................138
DTC P0031, P0032 HO2S1 HEATER .....................139
Description ............................................................139
CONSULT-II Reference Value in Data Monitor Mode
.139
On Board Diagnosis Logic ....................................139
DTC Confirmation Procedure ...............................139
Wiring Diagram .....................................................141
Diagnostic Procedure ...........................................142
Component Inspection ..........................................144
Removal and Installation ......................................144
DTC P0037, P0038 HO2S2 HEATER .....................145
Description ............................................................145
CONSULT-II Reference Value in Data Monitor Mode
.145
On Board Diagnosis Logic ....................................145
DTC Confirmation Procedure ...............................145
Wiring Diagram .....................................................147
Diagnostic Procedure ...........................................148
Component Inspection ..........................................150
Removal and Installation ......................................150
DTC P0102, P0103 MAF SENSOR .........................151
Component Description ........................................151
CONSULT-II Reference Value in Data Monitor Mode
.151
On Board Diagnosis Logic ....................................151
DTC Confirmation Procedure ...............................151
Wiring Diagram .....................................................153
Diagnostic Procedure ...........................................154
Component Inspection ..........................................157
Removal and Installation ......................................158
DTC P0112, P0113 IAT SENSOR ...........................159
Component Description ........................................159
On Board Diagnosis Logic ....................................159
DTC Confirmation Procedure ...............................159
Wiring Diagram .....................................................161
Diagnostic Procedure ...........................................162
Component Inspection ..........................................164
Removal and Installation ......................................164
DTC P0117, P0118 ECT SENSOR ..........................165
Component Description ........................................165
On Board Diagnosis Logic ....................................165
DTC Confirmation Procedure ...............................166
Wiring Diagram .....................................................167
Diagnostic Procedure ...........................................168
Component Inspection ..........................................170
Removal and Installation ......................................170
DTC P0122, P0123 TP SENSOR ............................171
Component Description ........................................171
CONSULT-II Reference Value in Data Monitor Mode
.171
On Board Diagnosis Logic ....................................171
DTC Confirmation Procedure ...............................171
Wiring Diagram .....................................................173
Diagnostic Procedure ...........................................175
Component Inspection ..........................................178
Removal and Installation ......................................178DTC P0132 HO2S1 .................................................179
Component Description ........................................179
CONSULT-II Reference Value in Data Monitor Mode
.179
On Board Diagnosis Logic ....................................179
DTC Confirmation Procedure ................................180
Wiring Diagram .....................................................181
Diagnostic Procedure ............................................182
Component Inspection ..........................................184
Removal and Installation .......................................185
DTC P0133 HO2S1 .................................................186
Component Description ........................................186
CONSULT-II Reference Value in Data Monitor Mode
.186
On Board Diagnosis Logic ....................................186
DTC Confirmation Procedure ................................187
Overall Function Check .........................................188
Wiring Diagram .....................................................189
Diagnostic Procedure ............................................190
Component Inspection ..........................................193
Removal and Installation .......................................195
DTC P0134 HO2S1 .................................................196
Component Description ........................................196
CONSULT-II Reference Value in Data Monitor Mode
.196
On Board Diagnosis Logic ....................................196
DTC Confirmation Procedure ................................197
Overall Function Check .........................................197
Wiring Diagram .....................................................199
Diagnostic Procedure ............................................200
Component Inspection ..........................................201
Removal and Installation .......................................203
DTC P0138 HO2S2 .................................................204
Component Description ........................................204
CONSULT-II Reference Value in Data Monitor Mode
.204
On Board Diagnosis Logic ....................................204
DTC Confirmation Procedure ................................204
Wiring Diagram .....................................................206
Diagnostic Procedure ............................................207
Component Inspection ..........................................208
Removal and Installation .......................................210
DTC P0139 HO2S2 .................................................211
Component Description ........................................211
CONSULT-II Reference Value in Data Monitor Mode
.211
On Board Diagnosis Logic ....................................211
DTC Confirmation Procedure ................................212
Overall Function Check .........................................213
Wiring Diagram .....................................................214
Diagnostic Procedure ............................................215
Component Inspection ..........................................217
Removal and Installation .......................................218
DTC P0171 FUEL INJECTION SYSTEM FUNCTION .219
On Board Diagnosis Logic ....................................219
DTC Confirmation Procedure ................................219
Wiring Diagram .....................................................221
Diagnostic Procedure ............................................222

EC-7
C
D
E
F
G
H
I
J
K
L
M
ECA
Diagnostic Procedure ........................................... 647
Component Inspection ......................................... 650
Removal and Installation ...................................... 651
DTC P0117, P0118 ECT SENSOR ......................... 652
Component Description ........................................ 652
On Board Diagnosis Logic ................................... 652
DTC Confirmation Procedure ............................... 653
Wiring Diagram .................................................... 654
Diagnostic Procedure ........................................... 655
Component Inspection ......................................... 657
Removal and Installation ...................................... 657
DTC P0122, P0123 TP SENSOR ........................... 658
Component Description ........................................ 658
CONSULT-II Reference Value in Data Monitor Mode
. 658
On Board Diagnosis Logic ................................... 658
DTC Confirmation Procedure ............................... 658
Wiring Diagram .................................................... 660
Diagnostic Procedure ........................................... 662
Component Inspection ......................................... 665
Removal and Installation ...................................... 665
DTC P0132 HO2S1 ................................................. 666
Component Description ........................................ 666
CONSULT-II Reference Value in Data Monitor Mode
. 666
On Board Diagnosis Logic ................................... 666
DTC Confirmation Procedure ............................... 667
Wiring Diagram .................................................... 668
Diagnostic Procedure ........................................... 669
Component Inspection ......................................... 671
Removal and Installation ...................................... 672
DTC P0134 HO2S1 ................................................. 673
Component Description ........................................ 673
CONSULT-II Reference Value in Data Monitor Mode
. 673
On Board Diagnosis Logic ................................... 673
Overall Function Check ........................................ 674
Wiring Diagram .................................................... 675
Diagnostic Procedure ........................................... 676
Component Inspection ......................................... 677
Removal and Installation ...................................... 679
DTC P0222, P0223 TP SENSOR ........................... 680
Component Description ........................................ 680
CONSULT-II Reference Value in Data Monitor Mode
. 680
On Board Diagnosis Logic ................................... 680
DTC Confirmation Procedure ............................... 680
Wiring Diagram .................................................... 682
Diagnostic Procedure ........................................... 684
Component Inspection ......................................... 687
Removal and Installation ...................................... 687
DTC P0327, P0328 KS ........................................... 688
Component Description ........................................ 688
On Board Diagnosis Logic ................................... 688
DTC Confirmation Procedure ............................... 688
Wiring Diagram .................................................... 689
Diagnostic Procedure ........................................... 690
Component Inspection ......................................... 692
Removal and Installation ...................................... 692DTC P0335 CKP SENSOR (POS) ..........................693
Component Description ........................................693
CONSULT-II Reference Value in Data Monitor Mode
.693
On Board Diagnosis Logic ....................................693
DTC Confirmation Procedure ...............................693
Wiring Diagram .....................................................695
Diagnostic Procedure ...........................................697
Component Inspection ..........................................699
Removal and Installation ......................................700
DTC P0340 CMP SENSOR (PHASE) .....................701
Component Description ........................................701
On Board Diagnosis Logic ....................................701
DTC Confirmation Procedure ...............................701
Wiring Diagram .....................................................703
Diagnostic Procedure ...........................................704
Component Inspection ..........................................708
Removal and Installation ......................................708
DTC P0500 VSS ......................................................709
Description ............................................................709
On Board Diagnosis Logic ....................................709
DTC Confirmation Procedure ...............................709
Overall Function Check ........................................710
Diagnostic Procedure ...........................................710
DTC P0550 PSP SENSOR .....................................711
Component Description ........................................711
CONSULT-II Reference Value in Data Monitor Mode
.711
On Board Diagnosis Logic ....................................711
DTC Confirmation Procedure ...............................711
Wiring Diagram .....................................................712
Diagnostic Procedure ...........................................713
Component Inspection ..........................................715
Removal and Installation ......................................715
DTC P0605 ECM .....................................................716
Component Description ........................................716
On Board Diagnosis Logic ....................................716
DTC Confirmation Procedure ...............................716
Diagnostic Procedure ...........................................718
DTC P1065 ECM POWER SUPPLY .......................719
Component Description ........................................719
On Board Diagnosis Logic ....................................719
DTC Confirmation Procedure ...............................719
Wiring Diagram .....................................................720
Diagnostic Procedure ...........................................721
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .............................................................723
Component Description ........................................723
On Board Diagnosis Logic ....................................723
DTC Confirmation Procedure ...............................723
Diagnostic Procedure ...........................................724
Removal and Installation ......................................725
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................726
Description ............................................................726
On Board Diagnosis Logic ....................................726
DTC Confirmation Procedure ...............................726
Wiring Diagram .....................................................728
Diagnostic Procedure ...........................................732

EC-11
C
D
E
F
G
H
I
J
K
L
M
ECA
Diagnostic Procedure ..........................................1066
Removal and Installation .....................................1067
DTC P0089 FUEL PUMP .......................................1068
On Board Diagnosis Logic ..................................1068
DTC Confirmation Procedure ..............................1068
Diagnostic Procedure ..........................................1068
Removal and Installation .....................................1070
DTC P0093 FUEL SYSTEM ..................................1071
On Board Diagnosis Logic ..................................1071
DTC Confirmation Procedure ..............................1071
Diagnostic Procedure ..........................................1071
Component Inspection ........................................1073
Removal and Installation .....................................1074
DTC P0101 MAF SENSOR ...................................1075
Component Description .......................................1075
CONSULT-II Reference Value in Data Monitor Mode
1075
On Board Diagnosis Logic ..................................1075
DTC Confirmation Procedure ..............................1076
Wiring Diagram ...................................................1077
Diagnostic Procedure ..........................................1078
Component Inspection ........................................1082
Removal and Installation .....................................1082
DTC P0102, P0103 MAF SENSOR .......................1083
Component Description .......................................1083
CONSULT-II Reference Value in Data Monitor Mode
1083
On Board Diagnosis Logic ..................................1083
DTC Confirmation Procedure ..............................1083
Wiring Diagram ...................................................1084
Diagnostic Procedure ..........................................1085
Component Inspection ........................................1087
Removal and Installation .....................................1087
DTC P0112, P0113 IAT SENSOR ..........................1088
Component Description .......................................1088
On Board Diagnosis Logic ..................................1088
DTC Confirmation Procedure ..............................1088
Wiring Diagram ...................................................1089
Diagnostic Procedure ..........................................1090
Component Inspection ........................................1092
Removal and Installation .....................................1092
DTC P0117, P0118 ECT SENSOR ........................1093
Description ..........................................................1093
On Board Diagnosis Logic ..................................1093
DTC Confirmation Procedure ..............................1093
Wiring Diagram ...................................................1095
Diagnostic Procedure ..........................................1096
Component Inspection ........................................1098
Removal and Installation .....................................1098
DTC P0122, P0123 APP SENSOR .......................1099
Description ..........................................................1099
CONSULT-II Reference Value in Data Monitor Mode
1099
On Board Diagnosis Logic ..................................1099
DTC Confirmation Procedure ..............................1099
Wiring Diagram ...................................................1101
Diagnostic Procedure ..........................................1103
Component Inspection ........................................1105
Removal and Installation .....................................1105DTC P0182, P0183 FUEL PUMP TEMPERATURE
SENSOR ................................................................110 6
Description ...........................................................11 0 6
CONSULT-II Reference Value in Data Monitor Mode
11 0 6
On Board Diagnosis Logic ...................................11 0 6
DTC Confirmation Procedure ..............................11 0 6
Wiring Diagram ....................................................11 0 7
Diagnostic Procedure ..........................................11 0 8
Removal and Installation .....................................11 0 9
DTC P0192, P0193 FRP SENSOR ........................111 0
Description ...........................................................1110
CONSULT-II Reference Value in Data Monitor Mode
111 0
On Board Diagnosis Logic ...................................1110
DTC Confirmation Procedure ..............................1110
Wiring Diagram ....................................................1111
Diagnostic Procedure ..........................................1113
Component Inspection .........................................1115
Removal and Installation .....................................1115
DTC P0200 FUEL INJECTOR ...............................111 6
On Board Diagnosis Logic ...................................1116
DTC Confirmation Procedure ..............................1116
Diagnostic Procedure ..........................................1116
DTC P0201 - P0204 FUEL INJECTOR ..................111 8
Component Description .......................................1118
CONSULT-II Reference Value in Data Monitor Mode
111 8
On Board Diagnosis Logic ...................................1118
DTC Confirmation Procedure ..............................1119
Wiring Diagram ....................................................11 2 0
Diagnostic Procedure ..........................................11 2 2
Component Inspection .........................................11 2 3
Removal and Installation .....................................11 2 3
DTC P0217 ENGINE OVER TEMPERATURE .......112 4
System Description ..............................................11 2 4
CONSULT-II Reference Value in Data Monitor Mode
11 2 4
On Board Diagnosis Logic ...................................11 2 5
Overall Function Check .......................................11 2 5
Wiring Diagram ....................................................11 2 7
Diagnostic Procedure ..........................................11 2 8
Main 12 Causes of Overheating ..........................11 3 6
Component Inspection .........................................11 3 7
DTC P0222, P0223 APP SENSOR ........................113 8
Description ...........................................................11 3 8
CONSULT-II Reference Value in Data Monitor Mode
11 3 8
On Board Diagnosis Logic ...................................11 3 8
DTC Confirmation Procedure ..............................11 3 8
Wiring Diagram ....................................................11 4 0
Diagnostic Procedure ..........................................11 4 2
Component Inspection .........................................11 4 4
Removal and Installation .....................................11 4 4
DTC P0234 TC SYSTEM .......................................114 5
Description ...........................................................11 4 5
On Board Diagnosis Logic ...................................11 4 5
Overall Function Check .......................................11 4 5
Wiring Diagram ....................................................11 4 6

EC-15
C
D
E
F
G
H
I
J
K
L
M
ECA
ECM Terminals And Reference Value .................1398
CONSULT-II Function (ENGINE) ........................1405
CONSULT-II Reference Value in Data Monitor Mode
1411
Major Sensor Reference Graph in Data Monitor
Mode ...................................................................1413
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .....................................................................1414
Description ..........................................................1414
Diagnostic Procedure ..........................................1414
POWER SUPPLY AND GROUND CIRCUIT .........1415
Wiring Diagram ...................................................1415
Diagnostic Procedure ..........................................1416
Component Inspection ........................................1423
Ground Inspection ...............................................1424
DTC U1000 CAN COMMUNICATION LINE ..........1425
Description ..........................................................1425
On Board Diagnosis Logic ..................................1425
DTC Confirmation Procedure ..............................1425
Wiring Diagram ...................................................1426
Diagnostic Procedure ..........................................1427
DTC P0016 CKP - CMP CORRELATION ..............1428
On Board Diagnosis Logic ..................................1428
DTC Confirmation Procedure ..............................1428
Diagnostic Procedure ..........................................1428
DTC P0088 FUEL SYSTEM ..................................1430
On Board Diagnosis Logic ..................................1430
DTC Confirmation Procedure ..............................1430
Diagnostic Procedure ..........................................1430
Removal and Installation .....................................1431
DTC P0089 FUEL PUMP .......................................1432
On Board Diagnosis Logic ..................................1432
DTC Confirmation Procedure ..............................1432
Diagnostic Procedure ..........................................1432
Removal and Installation .....................................1433
DTC P0093 FUEL SYSTEM ..................................1434
On Board Diagnosis Logic ..................................1434
DTC Confirmation Procedure ..............................1434
Diagnostic Procedure ..........................................1434
Component Inspection ........................................1436
Removal and Installation .....................................1437
DTC P0102, P0103 MAF SENSOR .......................1438
Component Description .......................................1438
CONSULT-II Reference Value in Data Monitor Mode
1438
On Board Diagnosis Logic ..................................1438
DTC Confirmation Procedure ..............................1438
Wiring Diagram ...................................................1439
Diagnostic Procedure ..........................................1440
Component Inspection ........................................1442
Removal and Installation .....................................1442
DTC P0112, P0113 IAT SENSOR ..........................1443
Component Description .......................................1443
On Board Diagnosis Logic ..................................1443
DTC Confirmation Procedure ..............................1443
Wiring Diagram ...................................................1445
Diagnostic Procedure ..........................................1446
Component Inspection ........................................1448
Removal and Installation .....................................1448DTC P0117, P0118 ECT SENSOR ........................1449
Description ...........................................................1449
On Board Diagnosis Logic ...................................1449
DTC Confirmation Procedure ..............................1449
Wiring Diagram ....................................................1451
Diagnostic Procedure ..........................................1452
Component Inspection .........................................1454
Removal and Installation .....................................1454
DTC P0122, P0123 APP SENSOR ........................1455
Description ...........................................................1455
CONSULT-II Reference Value in Data Monitor Mode
1455
On Board Diagnosis Logic ...................................1455
DTC Confirmation Procedure ..............................1455
Wiring Diagram ....................................................1457
Diagnostic Procedure ..........................................1459
Component Inspection .........................................1461
Removal and Installation .....................................1461
DTC P0182, P0183 FUEL PUMP TEMPERATURE
SENSOR ................................................................1462
Description ...........................................................1462
CONSULT-II Reference Value in Data Monitor Mode
1462
On Board Diagnosis Logic ...................................1462
DTC Confirmation Procedure ..............................1462
Wiring Diagram ....................................................1463
Diagnostic Procedure ..........................................1464
Removal and Installation .....................................1465
DTC P0192, P0193 FRP SENSOR ........................1466
Description ...........................................................1466
CONSULT-II Reference Value in Data Monitor Mode
1466
On Board Diagnosis Logic ...................................1466
DTC Confirmation Procedure ..............................1466
Wiring Diagram ....................................................1467
Diagnostic Procedure ..........................................1469
Component Inspection .........................................1471
Removal and Installation .....................................1471
DTC P0200 FUEL INJECTOR ...............................1472
On Board Diagnosis Logic ...................................1472
DTC Confirmation Procedure ..............................1472
Diagnostic Procedure ..........................................1472
DTC P0201 - P0204 FUEL INJECTOR ..................1474
Component Description .......................................1474
CONSULT-II Reference Value in Data Monitor Mode
1474
On Board Diagnosis Logic ...................................1474
DTC Confirmation Procedure ..............................1475
Wiring Diagram ....................................................1476
Diagnostic Procedure ..........................................1478
Component Inspection .........................................1479
Removal and Installation .....................................1479
DTC P0217 ENGINE OVER TEMPERATURE .......1480
System Description ..............................................1480
CONSULT-II Reference Value in Data Monitor Mode
1480
On Board Diagnosis Logic ...................................1480
Overall Function Check .......................................1481
Wiring Diagram ....................................................1483

INDEX FOR DTC
EC-21
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*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: For models with ESP system
*7: When the fail-safe operation for both self-diagnoses occur, the MI illuminates.
*8: For QR25DE engine models
DTC No. IndexEBS010KZ
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-133, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
TP SEN 1/CIRC P0222 0222 1×EC-231
TP SEN 1/CIRC P0223 0223 1×EC-231
TP SEN 2/CIRC P0122 0122 1×EC-171
TP SEN 2/CIRC P0123 0123 1×EC-171
TP SENSOR P2135 2135 1×EC-424
TP SEN/CIRC A/T P1705 1705 1×AT-173
TW CATALYST SYS-B1 P0420 0420 2×EC-264
V/SP SEN (A/T OUT) P1720 1720 2 —EC-403
VEH SPD SEN/CIR AT*7P0720 0720 2×AT- 11 2
VEH SPEED SEN/CIRC*7P0500 0500 2×EC-276
Items
(CONSULT-II screen terms)DTC*
1
TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
DTC*1
Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3
No DTC
Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
Flashing*4EC-65
U1000
1000*5CAN COMM CIRCUIT1 (A/T)
2 (M/T)× (A/T)
— (M/T)EC-133
U1001
1001*5CAN COMM CIRCUIT 2 —EC-133
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0011 0011 INT/V TIM CONT-B1 2 —EC-136
P0031 0031 HO2S1 HTR (B1) 2×EC-139
P0032 0032 HO2S1 HTR (B1) 2×EC-139
P0037 0037 HO2S2 HTR (B1) 2×EC-145
P0038 0038 HO2S2 HTR (B1) 2×EC-145
P0102 0102 MAF SEN/CIRCUIT 1×EC-151
P0103 0103 MAF SEN/CIRCUIT 1×EC-151
P0112 0112 IAT SEN/CIRCUIT 2×EC-159
P0113 0113 IAT SEN/CIRCUIT 2×EC-159
P0117 0117 ECT SEN/CIRC 1×EC-165
P0118 0118 ECT SEN/CIRC 1×EC-165
P0122 0122 TP SEN 2/CIRC 1×EC-171

EC-22
[QR (WITH EURO-OBD)]
INDEX FOR DTC

P0123 0123 TP SEN 2/CIRC 1×EC-171
P0132 0132 HO2S1 (B1) 2×EC-179
P0133 0133 HO2S1 (B1) 2×EC-186
P0134 0134 HO2S1 (B1) 2×EC-196
P0138 0138 HO2S2 (B1) 2×EC-204
P0139 0139 HO2S2 (B1) 2×EC-211
P0171 0171 FUEL SYS-LEAN-B1 2×EC-219
P0172 0172 FUEL SYS-RICH-B1 2×EC-225
P0222 0222 TP SEN 1/CIRC 1×EC-231
P0223 0223 TP SEN 1/CIRC 1×EC-231
P0300 0300 MULTI CYL MISFIRE 2×EC-239
P0301 0301 CYL 1 MISFIRE 2×EC-239
P0302 0302 CYL 2 MISFIRE 2×EC-239
P0303 0303 CYL 3 MISFIRE 2×EC-239
P0304 0304 CYL 4 MISFIRE 2×EC-239
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-245
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-245
P0335 0335 CKP SEN/CIRCUIT 2×EC-250
P0340 0340 CMP SEN/CIRC-B1 2×EC-257
P0420 0420 TW CATALYST SYS-B1 2×EC-264
P0444 0444 PURG VOLUME CONT/V 2×EC-269
P0500 0500
VEH SPEED SEN/CIRC*72×EC-276
P0550 0550 PW ST P SEN/CIRC 2 —EC-278
P0605 0605 ECM 1 or 2× or —EC-283
P0705 0705 PNP SW/CIRC 2×AT-100
P0710 0710 ATF TEMP SEN/CIRC 2×AT-106
P0720 0720
VEH SPD SEN/CIR AT*72×AT- 11 2
P0725 0725 ENGINE SPEED SIG 2×AT- 11 9
P0731 0731 A/T 1ST GR FNCTN 2×AT-125
P0732 0732 A/T 2ND GR FNCTN 2×AT-130
P0733 0733 A/T 3RD GR FNCTN 2×AT-135
P0734 0734 A/T 4TH GR FNCTN 2×AT-140
P0740 0740 TCC SOLENOID/CIRC 2×AT-148
P0745 0745 L/PRESS SOL/CIRC 2×AT-154
P0750 0750 SFT SOL A/CIRC 1×AT-161
P0755 0755 SFT SOL B/CIRC 1×AT-167
P1065 1065 ECM BACK UP/CIRCUIT 2×EC-286
P 1111 1111 I N T / V T I M V / C I R - B 1 2×EC-290
P1121 1121 ETC ACTR 1×EC-294
P1122 1122 ETC FUNCTION/CIRC 1×EC-296
P1124 1124 ETC MOT PWR 1×EC-306
P1126 1126 ETC MOT PWR 1×EC-306
DTC*1
Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-53
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

The fail-safe function also operates when above diagnoses except MI circuit are detected and demands the
driver to repair the trouble.
Emission-related Diagnostic InformationEBS010LL
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS
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 codeTe s t Va l v e /
Te s t L i m i t
(GST only)1st trip DTC Reference page
CONSULT-II
GST*
2ECM*3
CAN COMM CIRCUIT U1000
1000*4——— (A/T)
× (M/T)EC-133
CAN COMM CIRCUIT U1001
1001*4——×EC-133
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000————
INT/V TIM CONT-B1 P0011 0011 — —×EC-136
HO2S1 HTR (B1) P0031 0031×××EC-139
HO2S1 HTR (B1) P0032 0032×××EC-139
HO2S2 HTR (B1) P0037 0037×××EC-145
HO2S2 HTR (B1) P0038 0038×××EC-145
MAF SEN/CIRCUIT P0102 0102 — — —EC-151
MAF SEN/CIRCUIT P0103 0103 — — —EC-151
IAT SEN/CIRCUIT P0112 0112 — —×EC-159
IAT SEN/CIRCUIT P0113 0113 — —×EC-159
ECT SEN/CIRCU P0117 0117 — — —EC-165
ECT SEN/CIRCU P0118 0118 — — —EC-165
TP SEN 2/CIRC P0122 0122 — — —EC-171
TP SEN 2/CIRC P0123 0123 — — —EC-171
HO2S1 (B1) P0132 0132 —××EC-179
HO2S1 (B1) P0133 0133×××EC-186
HO2S1 (B1) P0134 0134 —××EC-196
HO2S2 (B1) P0138 0138 —××EC-204
HO2S2 (B1) P0139 0139×××EC-211
FUEL SYS-LEAN-B1 P0171 0171 — —×EC-219
FUEL SYS-RICH-B1 P0172 0172 — —×EC-225
TP SEN 1/CIRC P0222 0222 — — —EC-231
TP SEN 1/CIRC P0223 0223 — — —EC-231
MULTI CYL MISFIRE P0300 0300 — —×EC-239
CYL 1 MISFIRE P0301 0301 — —×EC-239
CYL 2 MISFIRE P0302 0302 — —×EC-239
CYL 3 MISFIRE P0303 0303 — —×EC-239
CYL 4 MISFIRE P0304 0304 — —×EC-239
KNOCK SEN/CIRC-B1 P0327 0327 — —×EC-245
KNOCK SEN/CIRC-B1 P0328 0328 — —×EC-245
CKP SEN/CIRCUIT P0335 0335 — —×EC-250
CMP SEN/CIRC-B1 P0340 0340 — —×EC-257
TW CATALYST SYS-B1 P0420 0420×××EC-264

TROUBLE DIAGNOSIS
EC-77
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
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MA
EC

DTC Inspection Priority ChartEBS010LQ
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC U1000 and/or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC
U1000 and U1001. Refer to EC-133, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
*: For QR25DE engine modelsPriority Detected items (DTC)
1

U1000 U1001 CAN communication line

P0102 P0103 Mass air flow sensor

P0112 P0113 Intake air temperature sensor

P0117 P0118 Engine coolant temperature sensor

P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor

P0327 P0328 Knock sensor

P0335 Crankshaft position sensor (POS)

P0340 Camshaft position sensor (PHASE)

P0500 Vehicle speed sensor

P0605 ECM

P0705 Park/Neutral position (PNP) sensor

P1229 Sensor power supply

P1610-P1615 NATS

P1706 Park/Neutral position (PNP) switch

P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
2

P0031 P0032 Heated oxygen sensor 1 heater

P0037 P0038 Heated oxygen sensor 2 heater

P0132 P0133 P0134 P1143 P1144 Heated oxygen sensor 1

P0138 P0139 P1146 P1147 Heated oxygen sensor 2

P0444 EVAP canister purge volume control solenoid valve

P0550 Power steering pressure sensor

P0710 P0720 P725 P0740 P0745 P0750 P0755 P1705 P1760 A/T related sensors and solenoid valves

P1065 ECM power supply

P 1111 I n ta k e v a l v e t i m i n g c o n t r o l s o l e n o i d v a l v e

P1122 Electric throttle control function

P1124 P1126 Throttle control motor relay

P1128 Throttle control mother

P1211 TCS control unit

P1212 TCS communication line

P1720 Vehicle speed sensor

P1805 Brake switch
3

P0011 Intake valve timing control

P0171 P0172 Fuel injection system function

P0300 - P0304 Misfire

P0420 Three way catalyst function

P0731 - P0734 A/T function

P1121 Electric throttle control actuator

P1217 Engine over temperature (OVERHEAT)

P1564 ASCD steering switch*

P1572 ASCD brake switch*

P1574 ASCD vehicle speed sensor*

EC-78
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

Fail-Safe ChartEBS010LR
When the DTC listed bellow is detected, the ECM enters fail-safe mode and the MI lights up.
When there is an open circuit on MI circuit, the ECM can not warn the driver by lighting up MI when there is
trouble 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 has trouble and MI circuit is open by means of
operating fail-safe function.
The fail-safe function also operates when above diagnoses except MI circuit are detected and demands the
driver to repair the trouble.
DTC No. Detected items Engine operating condition in fail-safe mode
P0102
P0103Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
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 START 40°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
P0221
P0222
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.
(ECM detect 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 (A/T), neutral position (M/T) 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.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut

DTC P0122, P0123 TP SENSOR
EC-171
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
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MA
EC

DTC P0122, P0123 TP SENSORPFP:16119
Component DescriptionEBS010NN
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
CONSULT-II Reference Value in Data Monitor ModeEBS010NO
Specification data are reference values.
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicEBS010NP
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureEBS010NQ
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
THRTL SEN 1
THRTL SEN 2*

Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released More than 0.36V

Shift lever: D (A/T), 1st (M/T) Accelerator pedal: Fully depressed Less than 4.75V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122
0122Throttle position sensor 2
circuit low inputAn excessively low voltage from the TP sensor 2
is sent to ECM.

Harness or connectors
(TP sensor 2 circuit is open or
shorted.)
(APP sensor 2 circuit is shorted.)

Electric throttle control actuator
(TP sensor 2)

Accelerator pedal position sensor
(APP sensor 2) P0123
0123Throttle position sensor 2
circuit high inputAn excessively high voltage from the TP sensor 2
is sent to ECM.
Engine operation condition in fail-safe mode
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.