How much to replace wiring underneath relay 1999 Lexus rx300?

Replacing the wiring underneath the relay in a 1999 Lexus RX300 can vary significantly in cost depending on the extent of the damage and labor rates in your area. Generally, you might expect to pay between $100 to $300 for parts and labor. It's advisable to get a quote from a mechanic or dealership for a more accurate estimate based on your specific situation.