Here is the Diagnostic Machine I use [ Ссылка ]
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Watch Marc diagnose and rectify an ESP light on a 2007 Mazda 3.
ESP stands for Electronic Stability Program and its another name for your "Traction Control". It monitors and adjusts the brake pressure fed to each wheel according to it's need. ESP works in tandem with your ABS system and a fault with one causes a fault with the other. ESP basically alters the brake pressure for each wheel to keep your car as stable as possible when on difficult terrain or in situations where you're braking at speed.
in this case, we have a stored DTC for a pressure transducer (sensor) which monitors the pressure within the ABS pump which is applied to your brakes. the system needs to monitor how much pressure is in the system at any one time so that it can alter the pressures to each wheel correctly and as quickly as possible.
Due to the current situation with COVID-19 our local MAZDA dealership is closed, meaning in order to keep this customer on the road, we have had to use a pre-loved part.
2nd hand parts can be a nightmare sometimes, it could be a variant meant for a slightly different model, although it might fit, it may not be the correct one. Or if the fault you're fixing is a common problem like this one, who is to say without fitting that this one doesn't suffer from the same fault.
Although this second hand part comes pre programmed, we recommend carrying out your own recalibration process to ensure correct readings later on.
Many get by with the "plug and play" mentality but for peace of mind you can re calibrate your unit and know its right.
We hope this helps.

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