P03A3 Proton Arena OBD Code

OBD/2 P03A3 error code description and symptoms.

Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50 C (-58 F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC. Open circuit in harness Sensor signal short to power Damaged PCM Improper harness connection Damaged sensor ECT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code P03A3, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code P03A3 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

P03A3 Proton Arena Error Code Repair Process :

If your lack of ho2s switch - sensor indicates lean check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P03A3 and engine control unit are in charge of monitoring a bunch of different lack of ho2s switch - sensor indicates lean, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Soso)

Repair Time (50 Min.)

Cost Prediction : $ 40-75

Common Causes of Proton Arena 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 ;

• Engine Control Module (ECM)
• Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
• Fuel tank leaking
• Failures of clutch motion/travel sensors.

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.

P03A3 code for other Proton cars

You can view according P03A3 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• P03A3 Proto Spirra
• P03A3 Proton 300
• P03A3 Proton 400
• P03A3 Proton Gen
• P03A3 Proton Gen2
• P03A3 Proton Impian
• P03A3 Proton Inspira
• P03A3 Proton Juara
• P03A3 Proton Perdana
• P03A3 Proton Persona
• P03A3 Proton Preve
• P03A3 Proton Putra
• P03A3 Proton Saga Flx
• P03A3 Proton Saloon
• P03A3 Proton Satria
• P03A3 Proton Savvy
• P03A3 Proton Tiara
• P03A3 Proton Waja
• P03A3 Proton Wira

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

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