C3897 Volvo 343 OBD Code

OBD/2 C3897 error code description and symptoms.

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

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.

C3897 Volvo 343 Error Code Repair Process :

For reference voltage out of range (+5 v) 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. C3897 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 reference voltage out of range (+5 v) with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Volvo 343 C3897 OBD2 Code

A common cause of code C3897 is the failure of Reference Voltage Out of Range (+5 v), but there are several other possible causes as well, such as ;

Damaged ECM
Engine Control Module (ECM)
Faulty variable valve timing (VVT)
Clogged or faulty fuel injector (s)

C3897 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

C3897 Volvo 343 OBD Code

C3897 Volvo 343 Error Code Repair Process :

Common Causes of Volvo 343 C3897 OBD2 Code

C3897 code for other Volvo cars