Air Conditioning sonsor

-

Air Conditioning (A/C) Pressure Sensor

The A/C pressure sensor is installed on the high-pressure side of the A/C (air conditioning). The A/C pressure sensor sends a continuous analogue signal to the PCM, which describes the pressure status in the A/C high pressure line. More accurate fan control is possible thanks to this linear signal profile. The input voltage is 5V, the output voltage is between 0.5V and 4.5V depending on the cryogenic fluid pressure. When the cryogenic fluid pressure is low, the output voltage is also low.
The signal is also used to turn the A/C compressor on or off via the A/C clutch relay at certain pressure values.


Air conditioning clutch relay

The A/C clutch relay is located in the BJB at slot R3.
The A/C clutch relay switches the A/C compressor on and off. It is actuated by the PCM. The driver's wishes are communicated to the PCM from the climate control operating panel via the CAN databus.
If a fault occurs due to the pressure conditions in the A/C circuit, the A/C compressor is turned off via the A/C clutch relay. The PCM also turns off the A/C clutch relay for a short time under certain conditions (high engine load, when accelerating, high coolant temperature).
 

Commentaires

Enregistrer un commentaire

Posts les plus consultés de ce blog

Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450 - Diagnostic Strategy

-
Image
Diagnosis and Testing Refer to Wiring Diagrams Section 307-01, for schematic and connector information. General Equipment  diagnostic equipment Inspection and Verification Verify the customer concern. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Mechanical Electrical Fluid level too high/low Poor condition of fluid Fluid leak Damaged shift mechanism/linkages Damaged automatic transmission/ transaxle casing Fuse(s) Relay(s) Wiring harness Electrical connector(s) Selector lever module Transmission control module (TCM) If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step If the cause is not visually evident, verify the symptom and refer to the Ford diagnostic equipment to diagnose the system. Diagnostic Trouble Code (DTC) Chart NOTE: The following table should be used for guida...
Lire la suite

Electronic Engine Controls - 1.6L EcoBoost (118kW/160PS)

-
Image
Description and Operation Front view of engine Item Description 1 Variable camshaft timing oil control solenoid, exhaust camshaft 2 Ignition coil-on-plugs 3 CMP  (camshaft position)  Sensor - intake camshaft 4 Bypass solenoid valve 5 KS  (knock sensor)  sensor – cylinders 3 and 4 6 Electric throttle plate position sensors 7 Oil pressure switch 8 Shut-off solenoid valve 9 Electrically heated thermostat 10 KS  sensor – cylinders 1 and 2 11 The  MAP  (manifold absolute pressure)  sensor 12 Variable camshaft timing oil control solenoid, intake camshaft 13 Fuel pressure sensor – high-pressure circuit Rear view of engine Item Description 1 CMP  Sensor - exhaust camshaft 2 Fuel Metering Valve Comments: Part of the high-pressure fuel pump 3 Two-point  HO2S  (heated oxygen sensor) ...
Lire la suite

Diagnostic et essais Allumage automatique des phares

-
Image
Eclairage extérieur - Allumage automatique des phares Diagnostic et essais Se reporter au chapitre 417-01, du Manuel des schémas électriques pour les schémas et les informations sur les connecteurs. Outils spéciaux / Equipement d'atelier et outillage standard Kit de testeurs de bornes 29-011A Multimètre digital. Outil de diagnostic. Contrôle et vérification Note : Le module électronique générique (GEM) fait partie du boîtier électrique central (CJB). Note : Si le module GEM est remplacé, le module neuf doit être configuré après la pose. A cet effet, les données spécifiques au véhicule sont extraites du module à remplacer à l'aide de l'équipement de diagnostic et sont transférées dans le module neuf. Note : Avant d'extraire les données spécifiques au véhicule, s'assurer que toutes les connexions électriques du véhicule sont de nouveaux raccordées, de sorte que le module et l'outil de diagnostic puissent communiquer correct...
Lire la suite