C0024 - Chassis Fault Code C0024 - ABS / Bromssystem (Hjulhastighetssensorer & Ventiler)
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System
Chassis (Brakes, Steering, Suspension)
Related Fault Codes
Chassis Fault Code C0001 - ABS / Bromssystem (Hjulhastighetssensorer & Ventiler)
Chassis Fault Code C0002 - ABS / Bromssystem (Hjulhastighetssensorer & Ventiler)
Chassis Fault Code C0003 - ABS / Bromssystem (Hjulhastighetssensorer & Ventiler)
Chassis Fault Code C0004 - ABS / Bromssystem (Hjulhastighetssensorer & Ventiler)
Technical Description
DTC C0024 indicates an electrical or functional malfunction within the ABS/ESC hydraulic modulator solenoid valve circuit. The Electronic Brake Control Module (EBCM) continuously monitors the solenoid coil impedance, driver circuit voltage drop, and flyback current via internal high/low-side MOSFET drivers. The fault triggers when the controller detects an open circuit, short to ground, short to battery voltage, or an out-of-range coil resistance during initial startup power-on self-tests (POST) or dynamic ABS intervention.
Possible Causes
1. Intern mikrospricka eller kallödning i ABS-styrdonets kretskort (EBCM) vid anslutningsbenen till ventilspolarna.
2. Oxiderad eller bränd anslutningspinne i ABS-enhetens huvudkontaktstycke.
3. Defekt intern magnetventilspole (avbrott eller intern kortslutning p.g.a. termisk utmattning).
4. Spänningsfall i ABS-huvudsäkring eller felaktigt ventilrelä (integrerat på kretskortet).
5. Kärvande mekanisk ventilkärna i ABS-hydraulblocket (HCU).
Recommended Solution
Workflow
Mechanic's Tip
Before replacing expensive components, always double-check wiring and connections. 80% of all sensor faults are actually due to corroded contacts or broken wires.
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