Warning Lights Puzzle: Challenger Owner Seeks Expert Help

Had a similar situation with my 2011 Challenger SXT. Multiple error messages appeared simultaneously, and the malfunction indicator stayed on even after clearing the codes with a basic scan tool. The root cause turned out to be a corrupted control module program. The main symptoms matched yours, warnings across multiple displays and persistent engine light. Despite the concerning display messages, this was not a mechanical issue. The solution required reprogramming the engine control module with updated software. A generic scan tool cannot fix this type of fault. The repair shop needed specialized equipment to reprogram the module and reset the system properly. This is a known issue that can occur after battery replacement or electrical system work. While not mechanically serious, it requires proper diagnostic equipment and expertise to resolve. The control module needs to be properly coded to communicate with other vehicle systems. When selecting a shop, verify they have manufacturer-specific diagnostic capabilities, not just basic code readers. Ask if they can perform control module programming, as not all shops are equipped for this type of repair.

Thanks for sharing your experience. My own 2015 Dodge Challenger had multiple fault codes and engine light warnings last month. Eventually found out the issue was tied to a failing oxygen sensor that was triggering the malfunction indicator. Would you mind sharing how much the control module reprogramming ended up costing? Also curious if youve had any engine diagnostics or warning messages pop up since getting it fixed? Trying to figure out if I should upgrade my own diagnostic tools since these issues seem somewhat common on Challengers as they age.

The control module reprogramming job worked out to 360€ total, which covered both the diagnostic scanning and the complete recoding procedure. Since having the vehicle systems properly coded, the engine light and error messages have completely disappeared, and everything has been running smoothly for over 6 months now. A basic scan tool might help identify simple issues, but for complex coding problems like what we both experienced, professional diagnostic equipment is essential. While investing in advanced diagnostic tools might seem appealing, manufacturer-specific programming requires specialized equipment that most home mechanics cant access. The fault code detected in my case pointed to a communication error between modules, which the reprogramming successfully resolved. If youre seeing recurring warning messages even after fixing the oxygen sensor, it might be worth having a shop with proper diagnostic capabilities verify all systems are communicating correctly. These electronic gremlins can be tricky to diagnose without the right equipment, but once properly fixed, they typically dont return. In my case, the investment in professional diagnostic work was worth avoiding future headaches with unusual warning messages.

Happy to share how my repair experience turned out. After reading the responses here, I took my Challenger to a specialized performance shop that focuses on electronic diagnostics. Their OBD-II scan revealed multiple fault codes related to the oxygen sensor, which matched the symptoms I was seeing. The total repair came to 280€ including parts and labor. The shop used professional diagnostic equipment to verify all systems were communicating properly after replacing the sensor. They also checked for any other potential issues while they had it connected to their scanner. Its been about 3 weeks since the fix and no warning lights or error messages have returned. The engine is running smoother and my fuel economy has improved slightly too. While basic scan tools are helpful for initial diagnosis, having a professional shop with proper engine diagnostics equipment made all the difference in getting it fixed right the first time. Definitely learned my lesson about finding a qualified shop rather than trying to tackle complex electronic issues myself. The proper diagnostic scanning and repair was worth every cent compared to the hassle of recurring problems.