B2957 Trouble Code

View B2957 obd/2 error code description and symptoms. B2957 engine photo

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.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

Difficulty Level (Soso)
Level
Repair Time (30 Min.)
Time
Cost Prediction : $ 80-120

B2957 Error Code Repair Process :

If your cooling fan power/ground circuit malfunction check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system B2957 and engine control unit are in charge of monitoring a bunch of different cooling fan power/ground circuit malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool B2957 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 B2957

A common cause of code B2957 is the failure of Cooling Fan Power/Ground Circuit Malfunction, but there are several other possible causes as well, such as ;

B2957 code for all cars

You can view according B2957 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+B2957 Tmc Costin +B2957 Mercedes Slk 200 +B2957 Proton Perdana +B2957 Ginetta G32 +B2957 Marcos Mantis

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