Decided to buy some LED brake lights for the main brake lights. Put one on last night, compared the LED one with the original one. Both exactly the same so replaced the other original one and checked. All looked OK.
This morning when driving to work, the ECU light came on after starting the engine and the after market cruise control refused to set the speed but did turn on. Found that if I used the brake for more than 3 seconds then ECU light would go off. Release brake and ECU light comes back on after a second.
On arriving at work. I had a look at the brake lights when in sidelight mode, found that they are quite dim with the ignition on, but normal brightness when ignition is off. When brake pedal is pressed, both lights are bright, no matter whether ignition is on or off.
The lights came with a resistor each that I didn't fit. I assume fitting one or both will make the ECU light stay off and cruise control work, but will it keep the lights bright when ignition is on?
Secondly why cruise control won't work and ECU is bothered about 2 "blown" bulbs? Safety reasons?
Thanks muchly for help in advance!