C3503 Trouble Code

View C3503 obd/2 error code description and symptoms. C3503 engine photo

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.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

C3503 Error Code Repair Process :

The scent may C3503 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such C3503, so if the inside of your car enable signal open circuit as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

C3503 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C3503

A common cause of code C3503 is the failure of Enable Signal Open Circuit, but there are several other possible causes as well, such as ;

Engine Control Module (ECM)
Clogged or faulty fuel injector (s)
Faulty Variable Camshaft Timing (VCT) position solenoid
Three way catalyst converter Bank 1

C3503 code for all cars

You can view according C3503 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3503 Volkswagen Crafter Ii

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

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