C2504
Brake Missing Message
C2504 is an OBD-II diagnostic trouble code meaning: Brake Missing Message. Common causes: broken or damaged wiring harness, malfunction of brake system sensors. Estimated repair cost: $56–167.
Symptoms
- Check Engine Light Is On
- Activating engine emergency mode
- Reduced engine power
- Problems with the ABS/ESP system
Causes
- Broken or damaged wiring harness
- Malfunction of brake system sensors
- Problems with the brake system control unit
- Short circuit in the circuit
- ECU malfunction
How to Fix
- Check the integrity of the wiring harness
- Diagnose brake system sensors
- Check the connections of the brake control unit
- Scan the system for additional errors
- If necessary, replace faulty components
Related codes
FAQ
What does the C2504 code mean?
C2504 is an OBD-II diagnostic trouble code that indicates: Brake Missing Message
What causes a C2504 error code?
The most common causes of C2504 include: Broken or damaged wiring harness; Malfunction of brake system sensors; Problems with the brake system control unit; Short circuit in the circuit.
How do I fix a C2504 diagnostic trouble code?
To fix C2504: Check the integrity of the wiring harness. Diagnose brake system sensors. Check the connections of the brake control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C2504?
Limited driving only, diagnose soon
How much does it cost to fix C2504?
The estimated repair cost for C2504 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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