DTC Hyundai P0253 Short Explanation
Channel: Maxidot
Date: 28/11/2020

The video focuses on the basic Hyundai specific diagnostic error code.
Contents:
0:21 Basic DTC analysis according to OBD2 protocol standard.
1:48 Insight into programming
- an explanation of what a bit is and how a byte is formed
- decoding the Error Code to the base programming
2:58 A diagnostically understandable description of the Diagnostic Trouble Code
3:05 Basic error definition
- Possible causes or errors of the car and its parts describing the mentioned error

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Make:
Hyundai
Code:
P0253
Definition:
Brake Booster - General Signal Failure
Description:
When the Vacuum Pressure Sensor indicates a failure in the Vacuum Booster. After the cold start phase (i.e. 3 min after engine is running) and if the engine is running above 600 RPM there should be at least -200 mbar (-2.90 psi) of differential pressure in the vacuum-chamber for boosting the pedal force. If the pressure remains below this value for more than two minutes. Timer resets if the pressure remains above 220 mbar (3.19 psi) for 10 seconds.
Cause:
PINCHED, CUT OR OPEN VACUUM SUPPLY LINEBRAKE BOOSTERVACUUM PRESSURE SENSOR