C0803 Trouble Code

View C0803 obd/2 error code description and symptoms. C0803 engine photo

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

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.

C0803 Error Code Repair Process :

The scent may C0803 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 C0803, so if the inside of your car right rear turn lamp circuit short to battery 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.

C0803 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 C0803

A common cause of code C0803 is the failure of Right Rear Turn Lamp Circuit Short to Battery, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Engine Control Module (ECM)
Foreign matter caught in fuel filler cap
Intake Valve Timing Control Solenoid Valve harness is open or shorted

C0803 code for all cars

You can view according C0803 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C0803 Buick Reatta

+C0803 Alvis Td21

+C0803 Bugatti Type 18

+C0803 Lancia 2000

+C0803 Lancia Scorpion

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