B2900 Trouble Code

OBD/2 B2900 error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code B2900, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code B2900 on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

Difficulty Level (Soso)
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Repair Time (50 Min.)
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Cost Prediction : $ 50-100

B2900 Error Code Repair Process :

OBD B2900 code and tailpipe testing are two different approaches to identify vehicles in need of repair. The OBD system looks for broken or malfunctioning emissions control components and catalyst system efficiency below threshold (bank 1), while tailpipe tests sample a vehicle's exhaust to see if it is above or below certain prescribed limits. Given the robust nature of today's emissions control components, it is entirely possible for an individual component to B2900 malfunction without leading to an immediate increase in emissions at the tailpipe. In such cases, other components (like the catalyst) can temporarily compensate for the part that is broken however, these other components can only do double duty for so long before they, too, begin to malfunction. In addition, OBD also monitors for B2900 and other malfunctions in the fuel system problems that traditional tailpipe tests were not designed to identify. Most state and local areas also include a gas cap pressure test as part of an emission inspection.

Wrench Tool B2900 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 B2900

A common cause of code B2900 is the failure of Catalyst System Efficiency Below Threshold (Bank 1), but there are several other possible causes as well, such as ;

B2900 code for all cars

You can view according B2900 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B2900 Bitter CD +B2900 Bentley Mulsanne +B2900 Maserati 222 +B2900 Fiat 147 +B2900 Simca 1200
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