P03A3 Proton Waja OBD Code

OBD/2 P03A3 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code P03A3

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

P03A3 Proton Waja Error Code Repair Process :

OBD P03A3 code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components and lack of ho2s switch - sensor indicates lean, while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to P03A3 malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. In addition, OBD also monitors for P03A3 and other malfunctions in the fuel system problems that traditional tailpipe tests were not designed to identify. Most state and local areas also include a gas cap pressure test as part of an emission inspection.

Common Causes of Proton Waja P03A3 OBD2 Code

A common cause of code P03A3 is the failure of Lack Of HO2S Switch - Sensor Indicates Lean, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Fuel Injectors circuit poor electrical connection
Faulty oil control valve (OCV)

P03A3 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P03A3 Proton Waja OBD Code

P03A3 Proton Waja Error Code Repair Process :

Common Causes of Proton Waja P03A3 OBD2 Code

P03A3 code for other Proton cars