This repair service targets the most common failure points of the 240SX S13's Timing Control Unit—a critical component often overlooked until it's too late. Over time, the original capacitors leak and the factory solder joints crack, leading to all kinds of electrical issues. 
The TCU controls quite a bit on the S13. Defogg sytem , the key / door chime , winshield wiper timing , seat belt lights & door swithces. 
Issues with this unit can cause an array of issues. 
✅ What’s Included:
Capacitors replaced with high-quality, modern equivalents
Reflow of known weak solder joints (connector pins, power traces, etc.)
Thorough visual inspection and bench test
Cleaned and resealed for long-term reliability
Damaged traces will be repaired if needed.