Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 2008-2009 Approved Nissan Pathfinder 2009 EC
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ENGINE
A
ENGINE CONTROL SYSTEM
SECTION EC EC
C
D
E
CONTENTS
VQ40DE EVAPORATIVE EMISSION SYSTEM ............... 45 F
Description ..............................................................45
.
BASIC INSPECTION .................................. 14
.
INTAKE VALVE TIMING CONTROL ................ 48 G
DIAGNOSIS AND REPAIR WORKFLOW ........14
. Description ..............................................................48
.
Trouble Diagnosis Introduction .............................. 14
.
VARIABLE INDUCTION AIR SYSTEM ............ 49
INSPECTION AND ADJUSTMENT ...................20
. Description ..............................................................49
. H
Basic Inspection ..................................................... 20
. Vacuum Hose Drawing ...........................................51 .
Idle Speed and Ignition Timing Check ................... 24 .
Procedure After Replacing ECM ............................ 24 . ON BOARD DIAGNOSTIC (OBD) SYSTEM .... 52
I
VIN Registration ..................................................... 25
. Introduction .............................................................52
.
Accelerator Pedal Released Position Learning ...... 25 . Two Trip Detection Logic ........................................52 .
Throttle Valve Closed Position Learning ................ 25 . Emission-related Diagnostic Information ................53 .
Idle Air Volume Learning ........................................ 25
. Malfunction Indicator Lamp (MIL) ...........................65 . J
OBD System Operation Chart ................................68 .
FUNCTION DIAGNOSIS ............................. 28
. CONSULT-III Function (ENGINE) ..........................73 .
Generic Scan Tool (GST) Function ........................82 . K
ENGINE CONTROL SYSTEM ...........................28
.
System Diagram ..................................................... 28
. COMPONENT DIAGNOSIS ........................ 84
.
Engine Control Component Parts Location ............ 29 .
TROUBLE DIAGNOSIS - SPECIFICATION L
MULTIPORT FUEL INJECTION SYSTEM ........36
. VALUE ............................................................... 84
System Description ................................................ 36
. Description ..............................................................84
.
Testing Condition ....................................................84
. M
ELECTRIC IGNITION SYSTEM ........................39
. Inspection Procedure ..............................................84 .
System Description ................................................ 39
. Diagnosis Procedure ..............................................84 .
AIR CONDITIONING CUT CONTROL ..............40
. POWER SUPPLY AND GROUND CIRCUIT .... 92 N
Input/Output Signal Chart ....................................... 40
.
Diagnosis Procedure ..............................................92
.
System Description ................................................ 40
.
Ground Inspection ..................................................95
.
AUTOMATIC SPEED CONTROL DEVICE O
U0101 CAN COMM CIRCUIT ........................... 96
(ASCD) ..............................................................41
. Description ..............................................................96
.
System Description ................................................ 41
. On Board Diagnosis Logic ......................................96 .
Component Description .......................................... 42
. P
DTC Confirmation Procedure .................................96 .
CAN COMMUNICATION ...................................43
. Diagnosis Procedure ..............................................96 .
System Description ................................................ 43
. U1001 CAN COMM CIRCUIT ........................... 97
COOLING FAN CONTROL ...............................44
. Description ..............................................................97
.
Description ............................................................. 44
. On Board Diagnosis Logic ......................................97 .
DTC Confirmation Procedure .................................97 .
Revision: October 2008 EC-1 2009 Pathfinder
Diagnosis Procedure ............................................. 97
. P0117, P0118 ECT SENSOR .......................... 128
.
Component Description ....................................... 128
.
P0011, P0021 IVT CONTROL .......................... 98
. On Board Diagnosis Logic ................................... 128
.
On Board Diagnosis Logic ..................................... 98
. DTC Confirmation Procedure ............................... 129 .
DTC Confirmation Procedure ................................ 98. Diagnosis Procedure ............................................ 129
.
Diagnosis Procedure ............................................. 99
. Component Inspection ......................................... 130
.
Component Inspection ..........................................100
.
P0122, P0123 TP SENSOR ............................. 132
.
P0031, P0032, P0051, P0052 A/F SENSOR 1 Component Description ....................................... 132
.
HEATER .......................................................... 101
. On Board Diagnosis Logic ................................... 132
.
Description ............................................................101
. DTC Confirmation Procedure ............................... 132 .
On Board Diagnosis Logic ....................................101 . Diagnosis Procedure ............................................ 132
.
DTC Confirmation Procedure ...............................101 . Component Inspection ......................................... 135
.
Diagnosis Procedure ............................................101 .
Component Inspection ..........................................103 . P0125 ECT SENSOR ...................................... 136
.
Component Description ....................................... 136
.
P0037, P0038, P0057, P0058 HO2S2 HEAT- On Board Diagnosis Logic ................................... 136
.
ER ................................................................... 104
. DTC Confirmation Procedure ............................... 136 .
Description ............................................................104
. Diagnosis Procedure ............................................ 137
.
On Board Diagnosis Logic ....................................104 . Component Inspection ......................................... 137
.
DTC Confirmation Procedure ...............................104 .
Diagnosis Procedure ............................................105 . P0127 IAT SENSOR ........................................ 139
.
Component Inspection ..........................................106 . Component Description ....................................... 139
.
On Board Diagnosis Logic ................................... 139
.
P0075, P0081 IVT CONTROL SOLENOID DTC Confirmation Procedure ............................... 139 .
VALVE ............................................................ 108
. Diagnosis Procedure ............................................ 140
.
Component Description ........................................108
. Component Inspection ......................................... 140
.
On Board Diagnosis Logic ....................................108
.
DTC Confirmation Procedure ...............................108 . P0128 THERMOSTAT FUNCTION ................. 142
.
Diagnosis Procedure ............................................108
. On Board Diagnosis Logic ................................... 142
.
Component Inspection ..........................................109
. DTC Confirmation Procedure ............................... 142 .
Diagnosis Procedure ............................................ 142
.
P0101 MAF SENSOR ..................................... 111
. Component Inspection ......................................... 143
.
Component Description ........................................111
.
On Board Diagnosis Logic ....................................111
. P0130, P0150 A/F SENSOR 1 ........................ 144
.
DTC Confirmation Procedure ...............................111 . Component Description ....................................... 144
.
Overall Function Check ........................................112
. On Board Diagnosis Logic ................................... 144
.
Diagnosis Procedure ............................................113
. DTC Confirmation Procedure ............................... 144 .
Component Inspection ..........................................115
. Overall Function Check ........................................ 145
.
Diagnosis Procedure ............................................ 145
.
P0102, P0103 MAF SENSOR ......................... 117
.
Component Description ........................................117
. P0131, P0151 A/F SENSOR 1 ........................ 148
.
On Board Diagnosis Logic ....................................117
. Component Description ....................................... 148
.
DTC Confirmation Procedure ...............................117 . On Board Diagnosis Logic ................................... 148
.
Diagnosis Procedure ............................................118
. DTC Confirmation Procedure ............................... 148 .
Component Inspection ..........................................119
. Diagnosis Procedure ............................................ 149
.
P0112, P0113 IAT SENSOR ........................... 122
. P0132, P0152 A/F SENSOR 1 ........................ 152
.
Component Description ........................................122
. Component Description ....................................... 152
.
On Board Diagnosis Logic ....................................122
. On Board Diagnosis Logic ................................... 152
.
DTC Confirmation Procedure ...............................122 . DTC Confirmation Procedure ............................... 152 .
Diagnosis Procedure ............................................122
. Diagnosis Procedure ............................................ 153
.
Component Inspection ..........................................124
.
P0133, P0153 A/F SENSOR 1 ........................ 156
.
P0116 ECT SENSOR ...................................... 125
. Component Description ....................................... 156
.
Component Description ........................................125
. On Board Diagnosis Logic ................................... 156
.
On Board Diagnosis Logic ....................................125
. DTC Confirmation Procedure ............................... 156 .
DTC Confirmation Procedure ...............................125 . Diagnosis Procedure ............................................ 157
.
Diagnosis Procedure ............................................126
.
Component Inspection ..........................................126
.
P0137, P0157 HO2S2 ...................................... 161
.
Component Description ....................................... 161
.
Revision: October 2008 EC-2 2009 Pathfinder
On Board Diagnosis Logic ................................... 161
. P0327, P0328, P0332, P0333 KS ................... 210
DTC Confirmation Procedure ............................... 161. Component Description ........................................ 210
. A
Overall Function Check ........................................ 162
. On Board Diagnosis Logic .................................... 210
.
Diagnosis Procedure ............................................ 162
. DTC Confirmation Procedure ............................... 210.
Component Inspection ......................................... 165
. Diagnosis Procedure ............................................ 210
. EC
Component Inspection .......................................... 212
.
P0138, P0158 HO2S2 ..................................... 167
.
Component Description ........................................ 167
. P0335 CKP SENSOR (POS) ........................... 213
On Board Diagnosis Logic ................................... 167
. Component Description ........................................ 213
. C
DTC Confirmation Procedure ............................... 168. On Board Diagnosis Logic .................................... 213
.
Overall Function Check ........................................ 168
. DTC Confirmation Procedure ............................... 213.
Diagnosis Procedure ............................................ 169
. Diagnosis Procedure ............................................ 213
. D
Component Inspection ......................................... 173
. Component Inspection .......................................... 215
.
P0139, P0159 HO2S2 ..................................... 175
. P0340, P0345 CMP SENSOR (PHASE) ......... 217
Component Description ........................................ 175
. Component Description ........................................ 217
. E
On Board Diagnosis Logic ................................... 175
. On Board Diagnosis Logic .................................... 217
.
DTC Confirmation Procedure ............................... 175. DTC Confirmation Procedure ............................... 217.
Overall Function Check ........................................ 176
. Diagnosis Procedure ............................................ 218
. F
Diagnosis Procedure ............................................ 176
. Component Inspection .......................................... 220
.
Component Inspection ......................................... 179
.
P0420, P0430 THREE WAY CATALYST
P0171, P0174 FUEL INJECTION SYSTEM G
FUNCTION ...................................................... 221
FUNCTION ...................................................... 181
. On Board Diagnosis Logic .................................... 221
.
On Board Diagnosis Logic ................................... 181
. DTC Confirmation Procedure ............................... 221.
DTC Confirmation Procedure ............................... 181. Overall Function Check ........................................ 222
. H
Diagnosis Procedure ............................................ 182
. Diagnosis Procedure ............................................ 222
.
P0172, P0175 FUEL INJECTION SYSTEM P0441 EVAP CONTROL SYSTEM ................. 226 I
FUNCTION ...................................................... 187
. System Description ............................................... 226
.
On Board Diagnosis Logic ................................... 187
. On Board Diagnosis Logic .................................... 226
.
DTC Confirmation Procedure ............................... 187. DTC Confirmation Procedure ............................... 226 .
Diagnosis Procedure ............................................ 188
. Overall Function Check ........................................ 227
. J
Diagnosis Procedure ............................................ 227
.
P0181 FTT SENSOR ....................................... 193
. Component Inspection .......................................... 230
.
Component Description ........................................ 193
. K
On Board Diagnosis Logic ................................... 193
. P0442 EVAP CONTROL SYSTEM ................. 231
DTC Confirmation Procedure ............................... 193. On Board Diagnosis Logic .................................... 231
.
Diagnosis Procedure ............................................ 194
. DTC Confirmation Procedure ............................... 232.
L
Component Inspection ......................................... 195
. Diagnosis Procedure ............................................ 232
.
Component Inspection .......................................... 237
.
P0182, P0183 FTT SENSOR .......................... 196
.
Component Description ........................................ 196
. P0443 EVAP CANISTER PURGE VOLUME M
On Board Diagnosis Logic ................................... 196
. CONTROL SOLENOID VALVE ...................... 238
DTC Confirmation Procedure ............................... 196. Description ............................................................ 238
.
Diagnosis Procedure ............................................ 196
. On Board Diagnosis Logic .................................... 238 . N
Component Inspection ......................................... 198
. DTC Confirmation Procedure ............................... 239 .
Diagnosis Procedure ............................................ 239 .
P0222, P0223 TP SENSOR ............................ 199
. Component Inspection .......................................... 242 .
Component Description ........................................ 199
. O
On Board Diagnosis Logic ................................... 199
. P0444, P0445 EVAP CANISTER PURGE
DTC Confirmation Procedure ............................... 199. VOLUME CONTROL SOLENOID VALVE ...... 243
Diagnosis Procedure ............................................ 199
. Description ............................................................ 243
. P
Component Inspection ......................................... 202
. On Board Diagnosis Logic .................................... 243 .
DTC Confirmation Procedure ............................... 244 .
P0300, P0301, P0302, P0303, P0304, P0305, Diagnosis Procedure ............................................ 244 .
P0306, P0307, P0308 MISFIRE ...................... 203
. Component Inspection .......................................... 245 .
On Board Diagnosis Logic ................................... 203
.
DTC Confirmation Procedure ............................... 203. P0447 EVAP CANISTER VENT CONTROL
Diagnosis Procedure ............................................ 204
. VALVE ............................................................. 246
Revision: October 2008 EC-3 2009 Pathfinder
Component Description ........................................246
. Overall Function Check ........................................ 284
.
On Board Diagnosis Logic ....................................246
. Diagnosis Procedure ............................................ 285
.
DTC Confirmation Procedure ...............................246 .
Diagnosis Procedure ............................................246
. P0462, P0463 FUEL LEVEL SENSOR ........... 286
.
Component Inspection ..........................................248
. Component Description ....................................... 286
.
On Board Diagnosis Logic ................................... 286
.
P0448 EVAP CANISTER VENT CONTROL DTC Confirmation Procedure ............................... 286 .
VALVE ............................................................ 250
. Diagnosis Procedure ............................................ 286
.
Component Description ........................................250
.
On Board Diagnosis Logic ....................................250
. P0500 VSS ....................................................... 288
.
DTC Confirmation Procedure ...............................250 . Description ........................................................... 288
.
Diagnosis Procedure ............................................251
. On Board Diagnosis Logic ................................... 288 .
Component Inspection ..........................................252
. DTC Confirmation Procedure ............................... 288 .
Overall Function Check ........................................ 289 .
P0451 EVAP CONTROL SYSTEM PRES- Diagnosis Procedure ............................................ 289 .
SURE SENSOR .............................................. 255
.
Component Description ........................................255
.
P0506 ISC SYSTEM ........................................ 290
.
Description ........................................................... 290
.
On Board Diagnosis Logic ....................................255
.
On Board Diagnosis Logic ................................... 290 .
DTC Confirmation Procedure ...............................255 .
DTC Confirmation Procedure ............................... 290 .
Diagnosis Procedure ............................................255
.
Diagnosis Procedure ............................................ 290 .
Component Inspection ..........................................256
.
P0452 EVAP CONTROL SYSTEM PRES- P0507 ISC SYSTEM ........................................ 292
.
Description ........................................................... 292
.
SURE SENSOR .............................................. 258
.
On Board Diagnosis Logic ................................... 292 .
Component Description ........................................258
.
DTC Confirmation Procedure ............................... 292 .
On Board Diagnosis Logic ....................................258
.
Diagnosis Procedure ............................................ 292 .
DTC Confirmation Procedure ...............................258 .
Diagnosis Procedure ............................................259
. P0550 PSP SENSOR ...................................... 294
.
Component Inspection ..........................................261
. Component Description ....................................... 294
.
On Board Diagnosis Logic ................................... 294
.
P0453 EVAP CONTROL SYSTEM PRES-
DTC Confirmation Procedure ............................... 294 .
SURE SENSOR .............................................. 262
. Diagnosis Procedure ............................................ 294
.
Component Description ........................................262
. Component Inspection ......................................... 296
.
On Board Diagnosis Logic ....................................262
.
DTC Confirmation Procedure ...............................262 . P0603 ECM POWER SUPPLY ........................ 297
.
Diagnosis Procedure ............................................263
. Component Description ....................................... 297
.
Component Inspection ..........................................266
. On Board Diagnosis Logic ................................... 297
.
DTC Confirmation Procedure ............................... 297 .
P0455 EVAP CONTROL SYSTEM ................. 267
. Diagnosis Procedure ............................................ 297
.
On Board Diagnosis Logic ....................................267
.
DTC Confirmation Procedure ...............................267 . P0605 ECM ...................................................... 299
.
Diagnosis Procedure ............................................268
. Component Description ....................................... 299
.
Component Inspection ..........................................272
. On Board Diagnosis Logic ................................... 299
.
DTC Confirmation Procedure ............................... 299 .
P0456 EVAP CONTROL SYSTEM ................. 274
. Diagnosis Procedure ............................................ 300
.
On Board Diagnosis Logic ....................................274
.
DTC Confirmation Procedure ...............................275 . P0607 ECM ...................................................... 301
.
Overall Function Check ........................................275
. Description ........................................................... 301
.
Diagnosis Procedure ............................................276
. On Board Diagnosis Logic ................................... 301 .
Component Inspection ..........................................281
. DTC Confirmation Procedure ............................... 301 .
Diagnosis Procedure ............................................ 301 .
P0460 FUEL LEVEL SENSOR ....................... 282
.
Component Description ........................................282
. P0643 SENSOR POWER SUPPLY ................. 302
.
On Board Diagnosis Logic ....................................282
. On Board Diagnosis Logic ................................... 302
.
DTC Confirmation Procedure ...............................282 . DTC Confirmation Procedure ............................... 302 .
Diagnosis Procedure ............................................282
. Diagnosis Procedure ............................................ 302
.
P0461 FUEL LEVEL SENSOR ....................... 284
. P0850 PNP SWITCH ....................................... 305
.
Component Description ........................................284
. Component Description ....................................... 305
.
On Board Diagnosis Logic ....................................284
. On Board Diagnosis Logic ................................... 305
.
Revision: October 2008 EC-4 2009 Pathfinder
DTC Confirmation Procedure ............................... 305. DTC Confirmation Procedure ............................... 328.
Overall Function Check ........................................ 305
. Diagnosis Procedure ............................................ 328
. A
Diagnosis Procedure ............................................ 306
. Component Inspection .......................................... 330
.
P1148, P1168 CLOSED LOOP CONTROL .... 307
. P1554 BATTERY CURRENT SENSOR .......... 332
On Board Diagnosis Logic ................................... 307
. Component Description ........................................ 332
. EC
On Board Diagnosis Logic .................................... 332
.
P1211 TCS CONTROL UNIT .......................... 308
. Overall Function Check ........................................ 332
.
Description ........................................................... 308
. Diagnosis Procedure ............................................ 333
. C
On Board Diagnosis Logic ................................... 308 . Component Inspection .......................................... 334
.
DTC Confirmation Procedure ............................... 308 .
Diagnosis Procedure ............................................ 308 . P1564 ASCD STEERING SWITCH ................. 336
D
Component Description ........................................ 336
.
P1212 TCS COMMUNICATION LINE ............. 309
. On Board Diagnosis Logic .................................... 336
.
Description ........................................................... 309
. DTC Confirmation Procedure ............................... 336.
On Board Diagnosis Logic ................................... 309 . Diagnosis Procedure ............................................ 336
. E
DTC Confirmation Procedure ............................... 309 . Component Inspection .......................................... 338
.
Diagnosis Procedure ............................................ 309 .
P1572 ASCD BRAKE SWITCH ...................... 340 F
P1217 ENGINE OVER TEMPERATURE ........ 310
. Component Description ........................................ 340
.
On Board Diagnosis Logic ................................... 310
. On Board Diagnosis Logic .................................... 340
.
Overall Function Check ........................................ 310
. DTC Confirmation Procedure ............................... 340.
Diagnosis Procedure ............................................ 311
. Diagnosis Procedure ............................................ 341
. G
Main 12 Causes of Overheating ........................... 312 . Component Inspection .......................................... 344
.
P1225 TP SENSOR ......................................... 314
. P1574 ASCD VEHICLE SPEED SENSOR ..... 345 H
Component Description ........................................ 314
. Component Description ........................................ 345
.
On Board Diagnosis Logic ................................... 314
. On Board Diagnosis Logic .................................... 345
.
DTC Confirmation Procedure ............................... 314. DTC Confirmation Procedure ............................... 345.
Diagnosis Procedure ............................................ 314
. I
Diagnosis Procedure ............................................ 345
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