2020年5月1日 · Code C0021 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.

2017年5月24日 · C0021 code - When the Vacuum Pressure Sensor indicates a failure in the vacuum booster. After the cold start phase (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.

The C0021 code indicates an issue with the brake booster performance in a vehicle. The brake booster is a crucial component of the braking system that amplifies the force applied to the brake pedal, making it easier for the driver to stop the vehicle. When this code is triggered, it typically means that there is a problem with the brake booster ...

Revised May 29, 2020— Added DTC’s P0606 with C0021, C05D2, C0595, C2A3B, C0024, C053D. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a ...

2020年2月11日 · C0021 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.

OBD-II Code C0021 means that there is a problem with the performance of the brake booster.a804

C0021-02 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 ...

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The C0021 diagnostic trouble code (DTC) for Jeep vehicles specifically relates to the performance of the brake booster. The brake booster is a crucial component of the braking system that aids in multiplying the force applied to the brake pedal, making it easier for the driver to stop the vehicle. When this code appears, it indicates that there ...

2020年5月1日 · What are the common symptoms of OBDII code C0021 in a Chevrolet, indicating a Right Front Wheel Speed Sensor Circuit Open or Shorted to Battery? - Common symptoms include the ABS warning light being illuminated on the dashboard, potential traction control system malfunctions, and possible loss of stability control.