6 Bad Clock Spring Symptoms
With vehicle age comes worn parts in need of replacement. While brakes and suspension are expected, overlooked components like the clock spring also fail. This relatively unknown part enables key functions we now take for granted.
Let’s look at what the clock spring does, common symptoms of failure, and how much it will cost to replace to replace it.
What Is a Clock Spring?
A clock spring is an assembly that features a flat-ribbon spiral cable that can be extended and retracted as needed, maintaining circuit viability.
Devices of this nature are employed in situations where wiring for a particular circuit is required to move on a continual basis. In such instances, wiring of any other configuration would degrade rapidly.
What Does It Do?
A clock spring facilitates the function of various electronic automotive accessories, which are manipulated via a non-stationary controller. Simply put, a clock spring extends and retracts as needed to meet the needs of a non-stationary circuit. This is most presently used in the design of the modern automotive steering wheel.
Where Is It Located?
A vehicle’s clock spring is located between its steering column and steering wheel. This allows a number of steering wheel-controlled functions to operate as intended, despite the steering wheel’s constant movement.
Some of the most notable of these functions include the horn, push-button radio controls, and cruise control. A vehicle’s driver-side airbag is also supplied power via the clock spring.
Symptoms of a Bad Clock Spring
A faulty clock spring is often accompanied by several additional symptoms, some of which tend to be more troubling than others. The following are several of the most common symptoms associated with a bad clock spring.
#1 – Inoperable Steering Wheel Buttons
When a clock spring fails, one will often notice that their vehicle’s steering wheel-mounted controls no longer work. This often involves some cruise/radio control functions.
This lack of operation stems from a separation of the actual wires that feed power and ground to each of these functions. Unfortunately, operability is only restored through clock spring replacement.
#2 – Miscellaneous Warning Lights
Another common symptom of a damaged or faulty clock spring is the sudden illumination of one or more warning lights upon a vehicle’s dash.
The most commonly observed of these lights include the “airbag” light, which indicates a fault within the airbag circuit itself. A vehicle’s traction control or electronic throttle warning lights might also be activated.
#3 – Lack of Horn Function
A motorist is also likely to find that their vehicle’s horn is inoperable, in the event of clock spring damage. This stems from the fact that the horn’s power supply (clock spring) has been severed. This can pose quite a safety concern and warrants immediate diagnosis and repair. The horn itself will remain inoperable until the faulty clock spring is replaced or repaired.
#4 – Unusual Steering Wheel Noise
In some cases, a damaged clock spring might also be accompanied by a “rubbing” or “grinding” noise. This noise stems from unintended friction within a vehicle’s steering column itself, caused by the misalignment of one or more clock spring-related components.
As the steering wheel is turned, these components drag across one another, in ways that would not otherwise be possible.
#5 – Blown Fuses
A damaged clock spring might also result in the rapid failure of one or more fuses related to various steering wheel-controlled functions. This occurs when the wires of live circuits are allowed to move about, arcing off of grounded surfaces. As a result, the fuses that correspond to each of these circuits blow, as a matter of circuit protection.
#6 – Cruise Control Issues
Another sign that your clock spring might be going bad is when you start to notice issues with your cruise control system. The clock spring is responsible for maintaining the connection between the cruise control buttons and the car’s system.
If it starts to malfunction, you might experience: the inability to set cruise control, cruise control randomly disengaging, and difficulty adjusting speed settings.
What Causes a Clock Spring Failure?
The failure of a vehicle’s clock spring is generally attributed to normal wear and tear. This stems from the fact that a clock spring’s ribbon of wires moves with every revolution of a vehicle’s steering wheel.
As such, a certain degree of wear and tear is imminent. The wear only progresses until eventual failure occurs. Clock spring failure can also occur as the result of steering wheel over-rotation, at any time that a vehicle’s steering linkage is disconnected.
Simply put, the rotation of a vehicle’s steering wheel is typically limited by the turning radius of its wheels. However, when a vehicle’s steering linkage is disconnected, this limitation is removed, allowing the steering wheel to turn indefinitely.
If steering a wheel is turned more revolutions than allowed by its clock spring, the clock spring itself will be damaged as a result. This will necessitate clock spring replacement before full electrical functionality can be restored.
Can You Drive With a Broken Clock Spring?
Driving a vehicle with a broken clock spring is not advisable. This stems from the fact that a vehicle’s clock spring provides power/ground to a couple of critical vehicle safety functions. These include a vehicle’s horn and airbag. As a result, driving a vehicle with a damaged clock spring might actually constitute a safety risk of its own.
