* Faulty Clock Spring: This is a common culprit. The clock spring is a spiral cable located in the steering column that allows the airbag system to communicate with the steering wheel. Wear and tear can cause intermittent connections, leading to the light flickering.
* Faulty Airbag Control Module (ACM): The ACM is the "brain" of the airbag system. Internal failures or damage can cause erratic behavior, including a flickering light. This is often a more expensive repair.
* Faulty Sensor: Various sensors throughout the system (seat belt tensioners, impact sensors) can malfunction and trigger the light. A faulty sensor might only cause intermittent issues.
* Loose Connection: A simple loose connection somewhere in the wiring harness can be the cause. This can range from a corroded connector to a wire that's come loose.
* Low Voltage: While less common, a low battery voltage can sometimes trigger the airbag light to intermittently illuminate.
* Deployment of the Airbag (Pre-crash): In a prior accident, even a minor one, the airbag system might have been partially deployed or triggered, leading to the light staying on or flickering.
What you should NOT do:
* Ignore it: This is the most dangerous thing you can do. A malfunctioning airbag system could fail to deploy in a crash, putting you and your passengers at serious risk.
* Try to fix it yourself (unless you're a qualified mechanic): Working on the airbag system is extremely dangerous due to the risk of accidental deployment.
What you SHOULD do:
* Get it professionally diagnosed: Take your 1999 Dodge Ram to a qualified mechanic or a dealership. They'll have the diagnostic equipment to pinpoint the exact cause of the problem. A code reader specifically for airbag systems is essential. Many auto parts stores may offer a free scan of the trouble codes.
* Don't drive it excessively until it's fixed: Although you may be able to drive it, the risk is too great, so get it fixed as soon as possible.
The flickering light makes it a bit more tricky to diagnose than a constantly illuminated light, as it suggests an intermittent electrical problem. Professional diagnosis is essential for your safety.
