Lexus NX: System Diagram
Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (emission Control) / Emission Control System / System Diagram
SYSTEM DIAGRAM
| *1 | ECM | *2 | Engine Coolant Temperature Sensor |
| *3 | Air Fuel Ratio Sensor (for Bank 1 Sensor 1) | *4 | Heated Oxygen Sensor (for Bank 1 Sensor 2) |
| *5 | Crankshaft Position Sensor | *6 | Intake Manifold |
| *7 | Manifold Absolute Pressure Sensor | *8 | EGR Valve Assembly |
| *9 | EGR Cooler Assembly | - | - |
| *a | from Purge VSV | - | - |
| *1 | Fuel Tank Cap Assembly | *2 | Fuel Tank Assembly |
| *3 | Fuel Cutoff Valve | *4 | Canister Filter |
| *5 | Charcoal Canister Assembly | *6 | Vent Valve |
| *7 | Canister Pump Module | *8 | Canister Pressure Sensor |
| *9 | Leak Detection Pump | *10 | ECM |
| *11 | Purge VSV | *12 | Float Valve |
| *a | to Intake Manifold | - | - |
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On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS (a) Visually check that the hoses, connections and gaskets have no cracks, leaks or damage. NOTICE:
Detachment or
Fuel Tank Cap
InspectionINSPECTION PROCEDURE 1. INSPECT FUEL TANK CAP ASSEMBLY (a) Visually check that the fuel tank cap assembly and fuel tank cap gasket are not deformed or damaged. *1 Fuel Tank Cap Gasket
Pcv Valve
ComponentsCOMPONENTS ILLUSTRATION *1 PCV VALVE SUB-ASSEMBLY *2 NO. 2 PCV HOSE N*m (kgf*cm, ft.*lbf): Specified torque Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent
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Fuel Pump Control Circuit
DESCRIPTION The fuel pump circuit consists of the ECM, fuel pump and fuel pump control ECU assembly (which operates the fuel pump). Based on the engine output, the ECM determines the fuel pump speed. The speed is then converted to a duty signal and sent to the fuel pump control ECU assembly. Based o
Inspection
INSPECTION PROCEDURE 1. INSPECT FOG LIGHT ASSEMBLY LH (a) Apply battery voltage to the connector and check the light illumination condition. OK: Condition Specified Condition Battery positive (+) → 2 (B) Battery negative (-) → 1 (E) Illuminates If the result is not as specified
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