Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Xterra 2005-2007.2009 Approved Nissan Xterra 2009 EC
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ENGINE
EC
A
EC
SECTION
ENGINE CONTROL SYSTEM C
D
E
CONTENTS
VQ40DE EVAPORATIVE EMISSION SYSTEM ............... 39 F
Description ..............................................................39
.
BASIC INSPECTION ................................... 8
.
INTAKE VALVE TIMING CONTROL ................ 42 G
DIAGNOSIS AND REPAIR WORKFLOW ......... 8
. Description ..............................................................42
.
Trouble Diagnosis Introduction ................................ 8
.
VARIABLE INDUCTION AIR SYSTEM ............ 43
INSPECTION AND ADJUSTMENT ...................14
. Description ..............................................................43
. H
Basic Inspection ..................................................... 14
. Vacuum Hose Drawing ...........................................45 .
Idle Speed and Ignition Timing Check ................... 18 .
Procedure After Replacing ECM ............................ 18 . ON BOARD DIAGNOSTIC (OBD) SYSTEM .... 46
I
VIN Registration ..................................................... 19
. Introduction .............................................................46
.
Accelerator Pedal Released Position Learning ...... 19 . Two Trip Detection Logic ........................................46 .
Throttle Valve Closed Position Learning ................ 19 . Emission-related Diagnostic Information ................47 .
Idle Air Volume Learning ........................................ 19
. Malfunction Indicator Lamp (MIL) ...........................59 . J
OBD System Operation Chart ................................62 .
FUNCTION DIAGNOSIS ............................. 22
. CONSULT-III Function (ENGINE) ..........................67 .
Generic Scan Tool (GST) Function ........................76 . K
ENGINE CONTROL SYSTEM ...........................22
.
System Diagram ..................................................... 22
. COMPONENT DIAGNOSIS ........................ 78
.
Engine Control Component Parts Location ............ 23 .
TROUBLE DIAGNOSIS - SPECIFICATION L
MULTIPORT FUEL INJECTION SYSTEM ........30
. VALUE ............................................................... 78
System Description ................................................ 30
. Description ..............................................................78
.
Testing Condition ....................................................78
. M
ELECTRIC IGNITION SYSTEM ........................33
. Inspection Procedure ..............................................78 .
System Description ................................................ 33
. Diagnosis Procedure ..............................................78 .
AIR CONDITIONING CUT CONTROL ..............34
. POWER SUPPLY AND GROUND CIRCUIT .... 86 N
Input/Output Signal Chart ....................................... 34
.
Diagnosis Procedure ..............................................86
.
System Description ................................................ 34
.
Ground Inspection ..................................................89
.
AUTOMATIC SPEED CONTROL DEVICE O
U0101 CAN COMM CIRCUIT ........................... 90
(ASCD) ..............................................................35
. Description ..............................................................90
.
System Description ................................................ 35
. On Board Diagnosis Logic ......................................90 .
Component Description .......................................... 36
. P
DTC Confirmation Procedure .................................90 .
CAN COMMUNICATION ...................................37
. Diagnosis Procedure ..............................................90 .
System Description ................................................ 37
. U1001 CAN COMM CIRCUIT ........................... 91
COOLING FAN CONTROL ...............................38
. Description ..............................................................91
.
Description ............................................................. 38
. On Board Diagnosis Logic ......................................91 .
DTC Confirmation Procedure .................................91 .
Revision: October 2008 EC-1 2009 Xterra
Diagnosis Procedure ............................................. 91
. P0117, P0118 ECT SENSOR .......................... 122
.
Component Description ....................................... 122
.
P0011, P0021 IVT CONTROL .......................... 92
. On Board Diagnosis Logic ................................... 122
.
On Board Diagnosis Logic ..................................... 92
. DTC Confirmation Procedure ............................... 123 .
DTC Confirmation Procedure ................................ 92. Diagnosis Procedure ............................................ 123
.
Diagnosis Procedure ............................................. 93
. Component Inspection ......................................... 124
.
Component Inspection ........................................... 94
.
P0122, P0123 TP SENSOR ............................. 126
.
P0031, P0032, P0051, P0052 A/F SENSOR 1 Component Description ....................................... 126
.
HEATER ............................................................ 95
. On Board Diagnosis Logic ................................... 126
.
Description ............................................................. 95
. DTC Confirmation Procedure ............................... 126 .
On Board Diagnosis Logic ..................................... 95 . Diagnosis Procedure ............................................ 126
.
DTC Confirmation Procedure ................................ 95 . Component Inspection ......................................... 129
.
Diagnosis Procedure ............................................. 95 .
Component Inspection ........................................... 97 . P0125 ECT SENSOR ...................................... 130
.
Component Description ....................................... 130
.
P0037, P0038, P0057, P0058 HO2S2 HEAT- On Board Diagnosis Logic ................................... 130
.
ER ..................................................................... 98
. DTC Confirmation Procedure ............................... 130 .
Description ............................................................. 98
. Diagnosis Procedure ............................................ 131
.
On Board Diagnosis Logic ..................................... 98 . Component Inspection ......................................... 131
.
DTC Confirmation Procedure ................................ 98 .
Diagnosis Procedure ............................................. 99 . P0127 IAT SENSOR ........................................ 133
.
Component Inspection ..........................................100 . Component Description ....................................... 133
.
On Board Diagnosis Logic ................................... 133
.
P0075, P0081 IVT CONTROL SOLENOID DTC Confirmation Procedure ............................... 133 .
VALVE ............................................................ 102
. Diagnosis Procedure ............................................ 134
.
Component Description ........................................102
. Component Inspection ......................................... 134
.
On Board Diagnosis Logic ....................................102
.
DTC Confirmation Procedure ...............................102 . P0128 THERMOSTAT FUNCTION ................. 136
.
Diagnosis Procedure ............................................102
. On Board Diagnosis Logic ................................... 136
.
Component Inspection ..........................................103
. DTC Confirmation Procedure ............................... 136 .
Diagnosis Procedure ............................................ 136
.
P0101 MAF SENSOR ..................................... 105
. Component Inspection ......................................... 137
.
Component Description ........................................105
.
On Board Diagnosis Logic ....................................105
. P0130, P0150 A/F SENSOR 1 ........................ 138
.
DTC Confirmation Procedure ...............................105 . Component Description ....................................... 138
.
Overall Function Check ........................................106
. On Board Diagnosis Logic ................................... 138
.
Diagnosis Procedure ............................................107
. DTC Confirmation Procedure ............................... 138 .
Component Inspection ..........................................109
. Overall Function Check ........................................ 139
.
Diagnosis Procedure ............................................ 139
.
P0102, P0103 MAF SENSOR ......................... 111
.
Component Description ........................................111
. P0131, P0151 A/F SENSOR 1 ........................ 142
.
On Board Diagnosis Logic ....................................111
. Component Description ....................................... 142
.
DTC Confirmation Procedure ...............................111 . On Board Diagnosis Logic ................................... 142
.
Diagnosis Procedure ............................................112
. DTC Confirmation Procedure ............................... 142 .
Component Inspection ..........................................113
. Diagnosis Procedure ............................................ 143
.
P0112, P0113 IAT SENSOR ........................... 116
. P0132, P0152 A/F SENSOR 1 ........................ 146
.
Component Description ........................................116
. Component Description ....................................... 146
.
On Board Diagnosis Logic ....................................116
. On Board Diagnosis Logic ................................... 146
.
DTC Confirmation Procedure ...............................116 . DTC Confirmation Procedure ............................... 146 .
Diagnosis Procedure ............................................116
. Diagnosis Procedure ............................................ 147
.
Component Inspection ..........................................118
.
P0133, P0153 A/F SENSOR 1 ........................ 150
.
P0116 ECT SENSOR ...................................... 119
. Component Description ....................................... 150
.
Component Description ........................................119
. On Board Diagnosis Logic ................................... 150
.
On Board Diagnosis Logic ....................................119
. DTC Confirmation Procedure ............................... 150 .
DTC Confirmation Procedure ...............................119 . Diagnosis Procedure ............................................ 151
.
Diagnosis Procedure ............................................120
.
Component Inspection ..........................................120
.
P0137, P0157 HO2S2 ...................................... 155
.
Component Description ....................................... 155
.
Revision: October 2008 EC-2 2009 Xterra
On Board Diagnosis Logic ................................... 155
. P0327, P0328, P0332, P0333 KS ................... 204
DTC Confirmation Procedure ............................... 155. Component Description ........................................ 204
. A
Overall Function Check ........................................ 156
. On Board Diagnosis Logic .................................... 204
.
Diagnosis Procedure ............................................ 156
. DTC Confirmation Procedure ............................... 204.
Component Inspection ......................................... 159
. Diagnosis Procedure ............................................ 204
. EC
Component Inspection .......................................... 206
.
P0138, P0158 HO2S2 ..................................... 161
.
Component Description ........................................ 161
. P0335 CKP SENSOR (POS) ........................... 207
On Board Diagnosis Logic ................................... 161
. Component Description ........................................ 207
. C
DTC Confirmation Procedure ............................... 162. On Board Diagnosis Logic .................................... 207
.
Overall Function Check ........................................ 162
. DTC Confirmation Procedure ............................... 207.
Diagnosis Procedure ............................................ 163
. Diagnosis Procedure ............................................ 207
. D
Component Inspection ......................................... 167
. Component Inspection .......................................... 209
.
P0139, P0159 HO2S2 ..................................... 169
. P0340, P0345 CMP SENSOR (PHASE) ......... 211
Component Description ........................................ 169
. Component Description ........................................ 211
. E
On Board Diagnosis Logic ................................... 169
. On Board Diagnosis Logic .................................... 211
.
DTC Confirmation Procedure ............................... 169. DTC Confirmation Procedure ............................... 211.
Overall Function Check ........................................ 170
. Diagnosis Procedure ............................................ 212
. F
Diagnosis Procedure ............................................ 170
. Component Inspection .......................................... 214
.
Component Inspection ......................................... 173
.
P0420, P0430 THREE WAY CATALYST
P0171, P0174 FUEL INJECTION SYSTEM G
FUNCTION ...................................................... 215
FUNCTION ...................................................... 175
. On Board Diagnosis Logic .................................... 215
.
On Board Diagnosis Logic ................................... 175
. DTC Confirmation Procedure ............................... 215.
DTC Confirmation Procedure ............................... 175. Overall Function Check ........................................ 216
. H
Diagnosis Procedure ............................................ 176
. Diagnosis Procedure ............................................ 216
.
P0172, P0175 FUEL INJECTION SYSTEM P0441 EVAP CONTROL SYSTEM ................. 220 I
FUNCTION ...................................................... 181
. System Description ............................................... 220
.
On Board Diagnosis Logic ................................... 181
. On Board Diagnosis Logic .................................... 220
.
DTC Confirmation Procedure ............................... 181. DTC Confirmation Procedure ............................... 220 .
Diagnosis Procedure ............................................ 182
. Overall Function Check ........................................ 221
. J
Diagnosis Procedure ............................................ 221
.
P0181 FTT SENSOR ....................................... 187
. Component Inspection .......................................... 224
.
Component Description ........................................ 187
. K
On Board Diagnosis Logic ................................... 187
. P0442 EVAP CONTROL SYSTEM ................. 225
DTC Confirmation Procedure ............................... 187. On Board Diagnosis Logic .................................... 225
.
Diagnosis Procedure ............................................ 188
. DTC Confirmation Procedure ............................... 226.
L
Component Inspection ......................................... 189
. Diagnosis Procedure ............................................ 226
.
Component Inspection .......................................... 231
.
P0182, P0183 FTT SENSOR .......................... 190
.
Component Description ........................................ 190
. P0443 EVAP CANISTER PURGE VOLUME M
On Board Diagnosis Logic ................................... 190
. CONTROL SOLENOID VALVE ...................... 232
DTC Confirmation Procedure ............................... 190. Description ............................................................ 232
.
Diagnosis Procedure ............................................ 190
. On Board Diagnosis Logic .................................... 232 . N
Component Inspection ......................................... 192
. DTC Confirmation Procedure ............................... 233 .
Diagnosis Procedure ............................................ 233 .
P0222, P0223 TP SENSOR ............................ 193
. Component Inspection .......................................... 236 .
Component Description ........................................ 193
. O
On Board Diagnosis Logic ................................... 193
. P0444, P0445 EVAP CANISTER PURGE
DTC Confirmation Procedure ............................... 193. VOLUME CONTROL SOLENOID VALVE ...... 237
Diagnosis Procedure ............................................ 193
. Description ............................................................ 237
. P
Component Inspection ......................................... 196
. On Board Diagnosis Logic .................................... 237 .
DTC Confirmation Procedure ............................... 238 .
P0300, P0301, P0302, P0303, P0304, P0305, Diagnosis Procedure ............................................ 238 .
P0306, P0307, P0308 MISFIRE ...................... 197
. Component Inspection .......................................... 239 .
On Board Diagnosis Logic ................................... 197
.
DTC Confirmation Procedure ............................... 197. P0447 EVAP CANISTER VENT CONTROL
Diagnosis Procedure ............................................ 198
. VALVE ............................................................. 240
Revision: October 2008 EC-3 2009 Xterra
Component Description ........................................240
. Overall Function Check ........................................ 278
.
On Board Diagnosis Logic ....................................240
. Diagnosis Procedure ............................................ 279
.
DTC Confirmation Procedure ...............................240 .
Diagnosis Procedure ............................................240
. P0462, P0463 FUEL LEVEL SENSOR ........... 280
.
Component Inspection ..........................................242
. Component Description ....................................... 280
.
On Board Diagnosis Logic ................................... 280
.
P0448 EVAP CANISTER VENT CONTROL DTC Confirmation Procedure ............................... 280 .
VALVE ............................................................ 244
. Diagnosis Procedure ............................................ 280
.
Component Description ........................................244
.
On Board Diagnosis Logic ....................................244
. P0500 VSS ....................................................... 282
.
DTC Confirmation Procedure ...............................244 . Description ........................................................... 282
.
Diagnosis Procedure ............................................245
. On Board Diagnosis Logic ................................... 282 .
Component Inspection ..........................................246
. DTC Confirmation Procedure ............................... 282 .
Overall Function Check ........................................ 283 .
P0451 EVAP CONTROL SYSTEM PRES- Diagnosis Procedure ............................................ 283 .
SURE SENSOR .............................................. 249
.
Component Description ........................................249
.
P0506 ISC SYSTEM ........................................ 284
.
Description ........................................................... 284
.
On Board Diagnosis Logic ....................................249
.
On Board Diagnosis Logic ................................... 284 .
DTC Confirmation Procedure ...............................249 .
DTC Confirmation Procedure ............................... 284 .
Diagnosis Procedure ............................................249
.
Diagnosis Procedure ............................................ 284 .
Component Inspection ..........................................250
.
P0452 EVAP CONTROL SYSTEM PRES- P0507 ISC SYSTEM ........................................ 286
.
Description ........................................................... 286
.
SURE SENSOR .............................................. 252
.
On Board Diagnosis Logic ................................... 286 .
Component Description ........................................252
.
DTC Confirmation Procedure ............................... 286 .
On Board Diagnosis Logic ....................................252
.
Diagnosis Procedure ............................................ 286 .
DTC Confirmation Procedure ...............................252 .
Diagnosis Procedure ............................................253
. P0550 PSP SENSOR ...................................... 288
.
Component Inspection ..........................................255
. Component Description ....................................... 288
.
On Board Diagnosis Logic ................................... 288
.
P0453 EVAP CONTROL SYSTEM PRES-
DTC Confirmation Procedure ............................... 288 .
SURE SENSOR .............................................. 256
. Diagnosis Procedure ............................................ 288
.
Component Description ........................................256
. Component Inspection ......................................... 290
.
On Board Diagnosis Logic ....................................256
.
DTC Confirmation Procedure ...............................256 . P0603 ECM POWER SUPPLY ........................ 291
.
Diagnosis Procedure ............................................257
. Component Description ....................................... 291
.
Component Inspection ..........................................260
. On Board Diagnosis Logic ................................... 291
.
DTC Confirmation Procedure ............................... 291 .
P0455 EVAP CONTROL SYSTEM ................. 261
. Diagnosis Procedure ............................................ 291
.
On Board Diagnosis Logic ....................................261
.
DTC Confirmation Procedure ...............................261 . P0605 ECM ...................................................... 293
.
Diagnosis Procedure ............................................262
. Component Description ....................................... 293
.
Component Inspection ..........................................266
. On Board Diagnosis Logic ................................... 293
.
DTC Confirmation Procedure ............................... 293 .
P0456 EVAP CONTROL SYSTEM ................. 268
. Diagnosis Procedure ............................................ 294
.
On Board Diagnosis Logic ....................................268
.
DTC Confirmation Procedure ...............................269 . P0607 ECM ...................................................... 295
.
Overall Function Check ........................................269
. Description ........................................................... 295
.
Diagnosis Procedure ............................................270
. On Board Diagnosis Logic ................................... 295 .
Component Inspection ..........................................275
. DTC Confirmation Procedure ............................... 295 .
Diagnosis Procedure ............................................ 295 .
P0460 FUEL LEVEL SENSOR ....................... 276
.
Component Description ........................................276
. P0643 SENSOR POWER SUPPLY ................. 296
.
On Board Diagnosis Logic ....................................276
. On Board Diagnosis Logic ................................... 296
.
DTC Confirmation Procedure ...............................276 . DTC Confirmation Procedure ............................... 296 .
Diagnosis Procedure ............................................276
. Diagnosis Procedure ............................................ 296
.
P0461 FUEL LEVEL SENSOR ....................... 278
. P0850 PNP SWITCH ....................................... 299
.
Component Description ........................................278
. Component Description ....................................... 299
.
On Board Diagnosis Logic ....................................278
. On Board Diagnosis Logic ................................... 299
.
Revision: October 2008 EC-4 2009 Xterra
DTC Confirmation Procedure ............................... 299. DTC Confirmation Procedure ............................... 324.
Overall Function Check ........................................ 299
. Diagnosis Procedure ............................................ 324
. A
Diagnosis Procedure ............................................ 300
. Component Inspection .......................................... 326
.
P1148, P1168 CLOSED LOOP CONTROL .... 303
. P1554 BATTERY CURRENT SENSOR .......... 328
On Board Diagnosis Logic ................................... 303
. Component Description ........................................ 328
. EC
On Board Diagnosis Logic .................................... 328
.
P1211 TCS CONTROL UNIT .......................... 304
. Overall Function Check ........................................ 328
.
Description ........................................................... 304
. Diagnosis Procedure ............................................ 329
. C
On Board Diagnosis Logic ................................... 304 . Component Inspection .......................................... 330
.
DTC Confirmation Procedure ............................... 304 .
Diagnosis Procedure ............................................ 304 . P1564 ASCD STEERING SWITCH ................. 332
D
Component Description ........................................ 332
.
P1212 TCS COMMUNICATION LINE ............. 305
. On Board Diagnosis Logic .................................... 332
.
Description ........................................................... 305
. DTC Confirmation Procedure ............................... 332.
On Board Diagnosis Logic ................................... 305 . Diagnosis Procedure ............................................ 332
. E
DTC Confirmation Procedure ............................... 305 . Component Inspection .......................................... 334
.
Diagnosis Procedure ............................................ 305 .
P1572 ASCD BRAKE SWITCH ...................... 336 F
P1217 ENGINE OVER TEMPERATURE ........ 306
. Component Description ........................................ 336
.
On Board Diagnosis Logic ................................... 306
. On Board Diagnosis Logic .................................... 336
.
Overall Function Check ........................................ 306
. DTC Confirmation Procedure ............................... 336.
Diagnosis Procedure ............................................ 307
. Diagnosis Procedure ............................................ 337
. G
Main 12 Causes of Overheating ........................... 308 . Component Inspection .......................................... 343
.
P1225 TP SENSOR ......................................... 310
. P1574 ASCD VEHICLE SPEED SENSOR ..... 345 H
Component Description ........................................ 310
. Component Description ........................................ 345
.
On Board Diagnosis Logic ................................... 310
. On Board Diagnosis Logic .................................... 345
.
DTC Confirmation Procedure ............................... 310. DTC Confirmation Procedure ............................... 345.
Diagnosis Procedure ............................................ 310
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