What is the solution for the malfunctioning remote key of Corolla?

[StLucy]

Introduction to solutions for the malfunctioning remote key of Corolla: 1. Insufficient battery power: A dead battery can also cause a situation similar to remote malfunction. Replace the key battery to see if the situation improves. 2. Internal moisture or dirt oxidation: Open the key shell, remove the battery, clean it thoroughly, and reassemble to test if it works normally. 3. Poor contact on the circuit board: Soldering is required, and it is best to take it to a professional electrical repair or mobile phone repair shop for handling. 4. Damage to the signal processor: The signals sent by the key and received by the antenna are both handed over to the processor for verification. The processor acts as the core hub of this system. If it is damaged, the remote function will become ineffective. To solve this fault, replace the processor module and match it to resolve the issue.