C1223 Trouble Code

View C1223 obd/2 error code description and symptoms. C1223 engine photo

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

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.

C1223 Error Code Repair Process :

The scent may C1223 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 C1223, so if the inside of your car c1223 lamp brake warning output circuit failure 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.

C1223 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 C1223

A common cause of code C1223 is the failure of C1223 Lamp Brake Warning Output Circuit Failure, but there are several other possible causes as well, such as ;

EVAP canister or fuel tank leaks
Faulty Fuel injector
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Fuel injectors harness is open or shorted

C1223 code for all cars

You can view according C1223 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1223 Renault 14

+C1223 Citroen Nemo

+C1223 Mitsubishi Shogun

+C1223 Ford Zodiac

+C1223 Pierce-arrow 48

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

About Us | Contact | Privacy