Pro · Four-system diagnostics
FOXWELL Multi-System Scanner
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on AmazonEasy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there is a problem with the car's computer system that helps keep the car stable and safe. It's like when your video game controller isn't working right, and your character keeps doing the wrong thing.
The code C108A indicates an electrical issue with the valve coil 'A' circuit within the Dynamic Stability Control (DSC) module.
The Dynamic Stability Control (DSC) system is responsible for maintaining vehicle stability by adjusting braking force and engine power. The valve coil 'A' is part of the hydraulic control unit, which manages brake pressure. An electrical fault in this circuit can prevent the DSC system from functioning correctly.
• DSC warning light illuminated
• Loss of stability 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
• Check the DSC control module for fault codes.
• Inspect wiring and connectors for damage.
• Test the valve coil 'A' circuit for continuity.
• Replace faulty DSC control module.
• Repair or replace damaged wiring/connectors.
• Replace blown fuses in the DSC circuit.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• BMW 3 Series
• Ford Focus
• Mazda CX-5
• Regular maintenance of the DSC system.
• Avoid driving through deep water.
• Inspect electrical components periodically.
Electrical Circuit Issue
• Do not ignore the DSC warning light.
• Drive carefully if the DSC system is malfunctioning.
Check with your vehicle manufacturer for specific warranty coverage on the DSC system.
This code has been associated with vehicles equipped with advanced stability control systems since the early 2000s.
Moderate – While the vehicle remains drivable, stability control is compromised.
Driving with a malfunctioning DSC system can increase the risk of losing control of the vehicle, especially in adverse conditions.
• Vehicle parked on a level surface.
• Ignition in the 'ON' position without starting the engine.
The DSC control module is typically located near the vehicle's ABS pump or within the engine bay.
Q: Can I drive with the DSC light on?
A: It's possible to drive, but it's not recommended as the stability control system is not functioning properly.
Q: Will this issue affect my brakes?
A: Yes, it can affect the braking system's ability to manage stability, especially during sudden maneuvers.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.