Code : C1021
Make : FORD
Description : C1021 FORD ABS Booster Control Pressure Signal Amplitude
Possible causes :
– Other Diagnostic Trouble Codes (DTCs) present in Anti-Lock Brake System (ABS) Module
– Brake fluid leak
– Air trapped in the brake system
– Master cylinder
– Brake booster
– ABS module
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.
