C0008 - Chassis Fault Code C0008 - 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 C0008 indicates an electrical fault or signal plausibility failure within the ABS/ESC actuator or sensor circuit (commonly wheel speed sensor circuit or internal hydraulic valve solenoid monitoring). The Electronic Brake Control Module (EBCM) performs a power-on self-test (POST) and dynamic current-loop monitoring. If the current consumption drops outside expected thresholds (e.g., 7mA low / 14mA high for active current-loop Hall sensors) or if resistance/back-EMF is out of spec, the module flags C0008 and inhibits active brake intervention.
Possible Causes
1. Mekanisk skada eller korrosion på kablage och kontaktstycke i hjulhuset/fjäderbensområdet.
2. Skadad, korroderad eller magnetiskt förorenad pulskrans (tonring integrerad i hjullagret).
3. Defekt aktiv eller passiv hjulhastighetsgivare (internt komponenthaveri).
4. Övergångsresistans i jordpunkt eller EBCM-kontaktstift.
5. Internt fel på drivsteg eller magnetventil i ABS-hydraulstyrenheten (EBCM/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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