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General guide on how to replace an ignition ECU yourself Estimated time: 10-20 mins                                     Difficulty: Easy Replacing an  ignition ECU is not a complicated process if you know how. This general guide is to help you to to do it yourself, saving you money and a trip to the garage. This is just a quick guide. You may want to read more about it before embarking on the project. There are many information available on the internet on this topic.

Step 1

Begin by disconnecting the negative terminal on the battery. Loosen the bolt or screw holding the black negative cable to the battery post and remove the cable, ensuring it’s away from the post.

Step 2

The ignition ECU should be located behind the plastic panel on the passenger side kick back panel. Underneath the dashboard on the passengers side in front of the passengers seat you will need to remove the panel by prying it open with a small flat head screwdriver or unscrewing it and opening it.

Step 3

Once the panel is open you will see the ignition ECU which you will need to disconnect. Remove all the electrical connections and if there are any screws holding the unit in place, then unscrew these.

Step 4

Take your new ECU and re-connect the electrical connections and screw the unit back in place. Close the front panel by clicking it in place or screwing it back in, depending on the vehicle you have.

Reconnecting the ignition ECU

Re-connect the negative terminal on the battery and tighten the nut you loosened off. Now turn the key in the ignition to test that everything is working ok. This completes the installation of this part.