Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with a part of your car's computer that helps with braking. It's like when a toy's battery is not connected properly, so the toy doesn't work right.
The C108B code indicates an issue with the electrical circuit for the valve coil 'B' in the Dynamic Stability Control (DSC) module, which is part of the vehicle's braking system.
The DSC system is responsible for maintaining vehicle stability by controlling the brakes on individual wheels. The valve coil 'B' is an electrical component within the DSC module that helps control hydraulic pressure. An electrical fault in this circuit can disrupt the DSC's operation.
• ABS warning light illuminated
• Loss of traction control
• Unusual braking behavior
• Faulty DSC control module
• Damaged wiring or connectors
• Blown fuse in the DSC circuit
DSC: Dynamic Stability Control
OBD-II: On-Board Diagnostics, Second Generation
ABS: Anti-lock Braking System
• Check for any blown fuses related to the DSC system.
• Inspect wiring and connectors for damage or corrosion.
• Test the DSC control module for proper operation.
• Replace any blown fuses.
• Repair or replace damaged wiring or connectors.
• Replace the DSC control module if faulty.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $1000
Moderate
• BMW 3 Series
• Ford Focus
• Mazda CX-5
• Regularly inspect and maintain the braking system.
• Ensure electrical connections are secure and free of corrosion.
• Schedule routine diagnostic checks.
Brake System Issue
• Do not ignore warning lights on the dashboard.
• Have the braking system checked by a professional if you experience any issues.
• Keep up with regular vehicle maintenance.
Check with your vehicle manufacturer for warranty coverage on the DSC system.
This code has been reported in vehicles with stability control systems, especially those with complex electronic braking systems.
High – This issue can affect vehicle safety and should be addressed promptly.
Driving with a malfunctioning DSC system can lead to unsafe driving conditions. It is recommended to have the issue fixed as soon as possible.
• Vehicle parked on a level surface
• Ignition in the 'On' position
The DSC control module is usually located near the brake master cylinder or within the engine compartment.
Q: Can I drive with the C108B code?
A: It's not recommended to drive with this code active, as it can affect your vehicle's braking performance and safety.
Q: How can I reset the DSC light?
A: You can try resetting it with an OBD-II scanner, but if the issue persists, it needs to be diagnosed and repaired.
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Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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