U3979 Peugeot Tulip OBD Code

OBD/2 U3979 error code description and symptoms.

The input turbine speed sensor detects rotation of the input shaft of the input shaft speed sensor transmission. The computer uses that information, along with the output shaft speed sensor to determine if the transmission is operating according to plan. If the computer detects a difference between the input shaft speed , and the expected output shaft speed, it will adjust transmission pump pressure to prevent clutch disc slip. If adding pressure doesn't solve the problem, it will set a trouble code.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

U3979 Peugeot Tulip Error Code Repair Process :

For air flow recirculation door driver circuit failure check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U3979 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks air flow recirculation door driver circuit failure with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Peugeot Tulip U3979 OBD2 Code

A common cause of code U3979 is the failure of Air Flow Recirculation Door Driver Circuit Failure, but there are several other possible causes as well, such as ;

Faulty Air Flow Meter
Engine Control Module (ECM)
Incorrect fuel filler cap used
Faulty Variable Camshaft Timing (VCT) position solenoid

U3979 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

About Us | Contact | Privacy

U3979 Peugeot Tulip OBD Code

U3979 Peugeot Tulip Error Code Repair Process :

Common Causes of Peugeot Tulip U3979 OBD2 Code

U3979 code for other Peugeot cars