Do you need to replace BCU and ECU on pektron?

With ECU and BCU. Now fitted replace eart lead on battery and try to lock and unlock car, then try turning ignition on to start car and operate systems. There is no synch needed on pektron the fobs should operate from reconnection. If everything is connected correctly then central locking should operate as should immobiliser and car should start.

Is it true that removing the battery damages the ECU?

As has been stated, it simply cannot be true that removing the battery damages the ECU. The fact that the faults can be cleared, and randomly come and go leads me to this conclusion. Are the fault codes sensible, or seemingly nonsense?

Is there a way to reset the ECU?

This is the main way to reset the ECU. Be warned that going this route will clear out all presets including those for your radio, seats, navigation, etc. This is the easiest option and potentially the most annoying because it forces you to reset the settings.

Why does my ECU go bad when I jump start my car?

If the voltage is 6 or less, then this is likely causing your ECU problems. Whenever a jump start is performed on your battery, you need to ensure that the jumper cables are attached properly. If you perform a jump start with the cables attached incorrectly, then it could short out your ECU by causing it to spike too quickly.

Can a flat battery damage an ECU in a car?

” Jump-starting your car incorrectly is one of the most common ways to damage an ECU.” He advised: “Be very aware of the polarity of the jumper leads when jump-starting a vehicle with a flat battery – many ECU’s have been damaged by short-circuiting the jumper leads.

What happens if you connect a key to an ECU?

Connecting the leads with the key in the ignition may corrupt the coding between the key and the ECU. In some cases that’s irreversible, which could cost you a new key or a new ECU – or both.