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Genel OBD2
🟡 Medium
Genel OBD2
C0121
ABS Valve Relay Circuit Malfunction
The C0121 diagnostic trouble code (DTC) indicates a ABS Valve Relay Circuit Malfunction. The ECM has detected an electrical break or high resistance in the wiring or components, preventing the signal from completing its loop.
Brand
Genel OBD2
Fault Code
C0121
Severity
🟡 Medium
Models
Tüm marka ve modeller
🛠️ Diagnostic Overview
Difficulty Level
🛠️🛠️
Medium (Moderate)
Estimated Time
⏱️ 1-2 Hours
🧰 Required Tools
- ✓ Socket Wrench & Hand Tools
⚠️ Possible Causes
- Faulty relay
- Wiring fault
- Faulty ABS module
🔧 Recommended Fixes
- Test valve relay
- Inspect wiring
- Replace ABS module
🚗 Commonly Affected Vehicles
🏭 Genel OBD2 – Other Common Fault Codes