C3423 Austin A90 OBD Code

OBD/2 C3423 error code description and symptoms.

The Transmission Range Sensor (also referred to as the PRNDL input an/or neutral safety switch) tells the transmission control module (TCM) an the engine control module (PCM) that the transmission is in park, reverse, neutral, drive, low, 2nd, 3rd etc. It is attached directly to the manual valve of transmission, so when the shift lever is moved from park to drive, the Transmission Range Sensor communicates this critical information to the above mentioned vehicle control module systems.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C3423 Austin A90 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C3423 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 passenger mirror horizontal / vertical feedback potentiometer circuit open 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 passenger mirror horizontal / vertical feedback potentiometer circuit open.

Common Causes of Austin A90 C3423 OBD2 Code

A common cause of code C3423 is the failure of Passenger Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open, but there are several other possible causes as well, such as ;

Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Erratic camshaft position due to low oil pressure
Ignition misfiring
Incorrect Positive Crankcase Ventilation (PCV) hose connection

C3423 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.

About Us | Contact | Privacy

C3423 Austin A90 OBD Code

C3423 Austin A90 Error Code Repair Process :

Common Causes of Austin A90 C3423 OBD2 Code

C3423 code for other Austin cars