Nissan Pathfinder (2009 year). Instruction — part 249
EC-6
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2118 THROTTLE CONTROL MOTOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P2122, P2123 APP SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2127, P2128 APP SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2135 TP SENSOR . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2138 APP SENSOR . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2A00, P2A03 A/F SENSOR 1 . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
ASCD BRAKE SWITCH . . . . . . . . ..
Component Description . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
ASCD INDICATOR . . . . . . . . . . ..
Component Description . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
COOLING FAN . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ELECTRICAL LOAD SIGNAL . . . . . . ..
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
FUEL INJECTOR . . . . . . . . . . . ..
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
FUEL PUMP . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
IGNITION SIGNAL . . . . . . . . . . .
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) . . . . . . . . . . . . . .
System Description . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
POSITIVE CRANKCASE VENTILATION . . .
Description . . . . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
REFRIGERANT PRESSURE SENSOR . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
VIAS . . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ECU DIAGNOSIS . . . . . . . . . ..
ECM . . . . . . . . . . . . . . . . ..
CONSULT-III Reference Value in Data Monitor
Mode . . . . . . . . . . . . . . . . . .
ECM Harness Connector Terminal Layout . . ...
ECM Terminal and Reference Value . . . . .
Wiring Diagram - ENGINE CONTROL SYSTEM - .
Fail-Safe Chart . . . . . . . . . . . . . ..
DTC Inspection Priority Chart . . . . . . . ...
DTC Index . . . . . . . . . . . . . . . .
Emission-related Diagnostic Information . . . ..
SYMPTOM DIAGNOSIS . . . . . . ...
ENGINE CONTROL SYSTEM SYMPTOMS .
Symptom Matrix Chart . . . . . . . . . . ..
NORMAL OPERATING CONDITION . . . ...
2009 Pathfinder
EC-7
C
D
E
F
G
H
I
J
K
L
M
EC
A
N
O
P
Fuel Cut Control (at No Load and High Engine
Speed) . . . . . . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . .
Precaution for Procedure without Cowl Top Cover
On Board Diagnosis (OBD) System of Engine and
A/T . . . . . . . . . . . . . . . . . . .
Precaution . . . . . . . . . . . . . . . .
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . .
Special Service Tool . . . . . . . . . . . .
Commercial Service Tool . . . . . . . . . ..
ON-VEHICLE MAINTENANCE . . . . ..
FUEL PRESSURE . . . . . . . . . . .
Fuel Pressure Check . . . . . . . . . . . .
EVAP LEAK CHECK . . . . . . . . . .
How to Detect Fuel Vapor Leakage . . . . . ..
ON-VEHICLE REPAIR . . . . . . . ...
EVAP CANISTER . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
Removal and Installation . . . . . . . . . ...
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . .
Fuel Pressure . . . . . . . . . . . . . .
Idle Speed and Ignition Timing . . . . . . . ..
Calculated Load Value . . . . . . . . . . ..
Mass Air Flow Sensor . . . . . . . . . . ...
Intake Air Temperature Sensor . . . . . . . .
Engine Coolant Temperature Sensor . . . . .
Air Fuel Ratio (A/F) Sensor 1 Heater . . . . .
Heated Oxygen sensor 2 Heater . . . . . . ...
Crankshaft Position Sensor (POS) . . . . . .
Camshaft Position Sensor (PHASE) . . . . . .
Throttle Control Motor . . . . . . . . . . ...
Fuel Injector . . . . . . . . . . . . . . ..
Fuel Pump . . . . . . . . . . . . . . . .
VK56DE
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORK FLOW . ..
Trouble Diagnosis Introduction . . . . . . . .
INSPECTION AND ADJUSTMENT . . . . ..
Basic Inspection . . . . . . . . . . . . .
Idle Speed and Ignition Timing Check . . . . ...
Procedure After Replacing ECM . . . . . . ...
VIN Registration . . . . . . . . . . . . .
Accelerator Pedal Released Position Learning . .
Throttle Valve Closed Position Learning . . . ...
Idle Air Volume Learning . . . . . . . . . ...
FUNCTION DIAGNOSIS . . . . . . .
ENGINE CONTROL SYSTEM . . . . . .
System Diagram . . . . . . . . . . . . .
Engine Control Component Parts Location . . ...
MULTIPORT FUEL INJECTION SYSTEM . .
System Description . . . . . . . . . . . .
ELECTRIC IGNITION SYSTEM . . . . . ..
System Description . . . . . . . . . . . .
AIR CONDITIONING CUT CONTROL . . .
Input/Output Signal Chart . . . . . . . . . ..
System Description . . . . . . . . . . . .
AUTOMATIC SPEED CONTROL DEVICE
(ASCD) . . . . . . . . . . . . . . .
System Description . . . . . . . . . . . .
Component Description . . . . . . . . . . .
CAN COMMUNICATION . . . . . . . . .
System Description . . . . . . . . . . . .
COOLING FAN CONTROL . . . . . . . .
Description . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION SYSTEM . . . .
Description . . . . . . . . . . . . . . . .
INTAKE VALVE TIMING CONTROL . . . ..
Description . . . . . . . . . . . . . . . .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..
Introduction . . . . . . . . . . . . . . .
Two Trip Detection Logic . . . . . . . . . ...
Emission-related Diagnostic Information . . . ...
Malfunction Indicator Lamp (MIL) . . . . . . ..
OBD System Operation Chart . . . . . . . ...
CONSULT-III Function (ENGINE) . . . . . . .
Generic Scan Tool (GST) Function . . . . . ...
COMPONENT DIAGNOSIS . . . . . ...
TROUBLE DIAGNOSIS - SPECIFICATION
VALUE . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . .
Testing Condition . . . . . . . . . . . . ...
Inspection Procedure . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
POWER SUPPLY AND GROUND CIRCUIT ..
Diagnosis Procedure . . . . . . . . . . . .
Ground Inspection . . . . . . . . . . . . .
2009 Pathfinder
EC-8
U0101 CAN COMM CIRCUIT . . . . . . ..
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
U1001 CAN COMM CIRCUIT . . . . . . ..
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0011, P0021 IVT CONTROL . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER . . . . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0037, P0038, P0057, P0058 HO2S2 HEAT-
ER . . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0075, P0081 IVT CONTROL SOLENOID
VALVE . . . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0101 MAF SENSOR . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0102, P0103 MAF SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0112, P0113 IAT SENSOR . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0116 ECT SENSOR . . . . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0117, P0118 ECT SENSOR . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0122, P0123 TP SENSOR . . . . . . . ..
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0125 ECT SENSOR . . . . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0127 IAT SENSOR . . . . . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0128 THERMOSTAT FUNCTION . . . . ..
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0130, P0150 A/F SENSOR 1 . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0131, P0151 A/F SENSOR 1 . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0132, P0152 A/F SENSOR 1 . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
2009 Pathfinder
EC-9
C
D
E
F
G
H
I
J
K
L
M
EC
A
N
O
P
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0133, P0153 A/F SENSOR 1 . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0137, P0157 HO2S2 . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0138, P0158 HO2S2 . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0139, P0159 HO2S2 . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION . . . . . . . . . . . . . ...
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION . . . . . . . . . . . . . ...
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0181 FTT SENSOR . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0182, P0183 FTT SENSOR . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0222, P0223 TP SENSOR . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0300, P0301, P0302, P0303, P0304, P0305,
P0306, P0307, P0308 MISFIRE . . . . . ..
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0327, P0328, P0332, P0333 KS . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0335 CKP SENSOR (POS) . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0340 CMP SENSOR (PHASE) . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0420, P0430 THREE WAY CATALYST
FUNCTION . . . . . . . . . . . . . ..
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0441 EVAP CONTROL SYSTEM . . . . .
System Description . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0442 EVAP CONTROL SYSTEM . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE . . . . . ..
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
2009 Pathfinder
EC-10
P0444, P0445 EVAP CANISTER PURGE
VOLUME CONTROL SOLENOID VALVE . ..
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0447 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0448 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0451 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0452 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0455 EVAP CONTROL SYSTEM . . . . ..
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0456 EVAP CONTROL SYSTEM . . . . ..
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0460 FUEL LEVEL SENSOR . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0461 FUEL LEVEL SENSOR . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0462, P0463 FUEL LEVEL SENSOR . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0500 VSS . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0506 ISC SYSTEM . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0507 ISC SYSTEM . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0550 PSP SENSOR . . . . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0603 ECM POWER SUPPLY . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0605 ECM . . . . . . . . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0607 ECM . . . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
2009 Pathfinder
EC-11
C
D
E
F
G
H
I
J
K
L
M
EC
A
N
O
P
P0643 SENSOR POWER SUPPLY . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0850 PNP SWITCH . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1140, P1145 IVT CONTROL POSITION
SENSOR . . . . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P1148, P1168 CLOSED LOOP CONTROL . .
On Board Diagnosis Logic . . . . . . . . .
P1211 TCS CONTROL UNIT . . . . . . ...
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1212 TCS COMMUNICATION LINE . . . ..
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1217 ENGINE OVER TEMPERATURE . . .
On Board Diagnosis Logic . . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Main 12 Causes of Overheating . . . . . . .
P1225 TP SENSOR . . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1226 TP SENSOR . . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1421 COLD START CONTROL . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1550 BATTERY CURRENT SENSOR . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1551, P1552 BATTERY CURRENT SEN-
SOR . . . . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1553 BATTERY CURRENT SENSOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1554 BATTERY CURRENT SENSOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1564 ASCD STEERING SWITCH . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1572 ASCD BRAKE SWITCH . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1574 ASCD VEHICLE SPEED SENSOR . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1805 BRAKE SWITCH . . . . . . . . .
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
2009 Pathfinder
EC-12
P2101 ELECTRIC THROTTLE CONTROL
FUNCTION . . . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2118 THROTTLE CONTROL MOTOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P2122, P2123 APP SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2127, P2128 APP SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2135 TP SENSOR . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2138 APP SENSOR . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2A00, P2A03 A/F SENSOR 1 . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
ASCD BRAKE SWITCH . . . . . . . . ..
Component Description . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
ASCD INDICATOR . . . . . . . . . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
COOLING FAN . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ELECTRICAL LOAD SIGNAL . . . . . . ..
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
FUEL INJECTOR . . . . . . . . . . . ..
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
FUEL PUMP . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
IGNITION SIGNAL . . . . . . . . . . .
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) . . . . . . . . . . . . . .
System Description . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
POSITIVE CRANKCASE VENTILATION . . .
Description . . . . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
REFRIGERANT PRESSURE SENSOR . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
ECU DIAGNOSIS . . . . . . . . . ..
ECM . . . . . . . . . . . . . . . . ..
CONSULT-III Reference Value in Data Monitor
Mode . . . . . . . . . . . . . . . . . .
ECM Harness Connector Terminal Layout . . ...
ECM Terminal and Reference Value . . . . .
Wiring Diagram - ENGINE CONTROL SYSTEM - .
Fail-Safe Chart . . . . . . . . . . . . . ..
DTC Inspection Priority Chart . . . . . . . ...
DTC Index . . . . . . . . . . . . . . . .
Emission-related Diagnostic Information . . . ..
SYMPTOM DIAGNOSIS . . . . . . ...
ENGINE CONTROL SYSTEM SYMPTOMS .
Symptom Matrix Chart . . . . . . . . . . ..
NORMAL OPERATING CONDITION . . . ...
2009 Pathfinder
EC-13
C
D
E
F
G
H
I
J
K
L
M
EC
A
N
O
P
Fuel Cut Control (at No Load and High Engine
Speed) . . . . . . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . .
On Board Diagnosis (OBD) System of Engine and
A/T . . . . . . . . . . . . . . . . . . .
Precaution . . . . . . . . . . . . . . . .
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . .
Special Service Tool . . . . . . . . . . . .
Commercial Service Tool . . . . . . . . . ..
ON-VEHICLE MAINTENANCE . . . . ..
FUEL PRESSURE . . . . . . . . . . .
Fuel Pressure Check . . . . . . . . . . . .
EVAP LEAK CHECK . . . . . . . . . .
How to Detect EVAP Leakage . . . . . . . ..
ON-VEHICLE REPAIR . . . . . . . ...
EVAP CANISTER . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . ...
Fuel Pressure . . . . . . . . . . . . . .
Idle Speed and Ignition Timing . . . . . . . ..
Calculated Load Value . . . . . . . . . . ..
Mass Air Flow Sensor . . . . . . . . . . .
Intake Air Temperature Sensor . . . . . . . .
Engine Coolant Temperature Sensor . . . . .
A/F Sensor 1 Heater . . . . . . . . . . . ..
Heated Oxygen sensor 2 Heater . . . . . . ...
Crankshaft Position Sensor (POS) . . . . . .
Camshaft Position Sensor (PHASE) . . . . . .
Throttle Control Motor . . . . . . . . . . .
Fuel Injector . . . . . . . . . . . . . . ...
Fuel Pump . . . . . . . . . . . . . . . .
2009 Pathfinder
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