B1979 Fiat 1100 OBD Code

OBD/2 B1979 error code description and symptoms.

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code B1979

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

B1979 Fiat 1100 Error Code Repair Process :

If your vehicle failed a B1979 test and the B1979 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses b1979 passenger seat rearward switch circuit short to battery a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look b1979 passenger seat rearward switch circuit short to battery: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.

Common Causes of Fiat 1100 B1979 OBD2 Code

A common cause of code B1979 is the failure of B1979 Passenger Seat Rearward Switch Circuit Short to Battery, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Dirty Oil
Faulty ignition coil (s)
Variable Valve Timing (VVT) circuit is open or shorted

B1979 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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B1979 Fiat 1100 OBD Code

B1979 Fiat 1100 Error Code Repair Process :

Common Causes of Fiat 1100 B1979 OBD2 Code

B1979 code for other Fiat cars