B3920 Trouble Code

OBD/2 B3920 error code description and symptoms.

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

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.

Difficulty Level (Expert)
Level
Repair Time (35 Min.)
Time
Cost Prediction : $ 30-110

B3920 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine B3920 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 oil level lamp circuit failure 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 oil level lamp circuit failure.

Wrench Tool B3920 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.

Common Causes of B3920

A common cause of code B3920 is the failure of Oil Level Lamp Circuit Failure, but there are several other possible causes as well, such as ;

B3920 code for all cars

You can view according B3920 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B3920 Jaguar E-Type +B3920 Aston Martin Lagonda +B3920 Checker Superba +B3920 Lincoln LS +B3920 Renault Dauphine
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