I had a problem occur that seems to be common one on these cars. The overdrive light on the dash intermittently flickers, goes dim or off or stays on. After about a few weeks of this, the overdrive locks on when the car is started warm only to turn off eventually or not at all. I soon discovered that if I banged the relay(white) repeatedly, it would return the overdrive to normal but the dash light would stay on. Since I now suspected the relay, I replaced it only to find the exact same symptoms. I noticed the pin arrangement on the orange relay for earlier models was the same so I gave it a try(risky I know), but the car now behaves perfectly with the orange relay. I've heard it's sometimes necessary to resolder the connections but why bother if the orange relay corrects the problem. Is there any harm in using the orange relay?