B0979 Fiat 1400 OBD Code

OBD/2 B0979 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

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.

B0979 Fiat 1400 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B0979 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 transmission 4-wheel drive high indicator short circuit to battery 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 transmission 4-wheel drive high indicator short circuit to battery.

Common Causes of Fiat 1400 B0979 OBD2 Code

A common cause of code B0979 is the failure of Transmission 4-Wheel Drive High Indicator Short Circuit To Battery, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty Crankshaft Position Sensor (POS)
Dirty Oil
Open circuits caused by corrosion of electrical connectors.

B0979 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

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

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B0979 Fiat 1400 OBD Code

B0979 Fiat 1400 Error Code Repair Process :

Common Causes of Fiat 1400 B0979 OBD2 Code

B0979 code for other Fiat cars