C2373 Ford Flex OBD Code

OBD/2 C2373 error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

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.

C2373 Ford Flex Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C2373 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If throttle control unit modulated command malfunction so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the throttle control unit modulated command malfunction.

Common Causes of Ford Flex C2373 OBD2 Code

A common cause of code C2373 is the failure of Throttle Control Unit Modulated Command Malfunction, but there are several other possible causes as well, such as ;

Exhaust tube
Camshaft advance mechanism binding (VCT unit)
Incorrect fuel filler cap used
Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body

C2373 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.

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

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C2373 Ford Flex OBD Code

C2373 Ford Flex Error Code Repair Process :

Common Causes of Ford Flex C2373 OBD2 Code

C2373 code for other Ford cars