Sign in to follow this  

1990-1994 Engine ECU access.


Description

This guide provides instructions for accessing the engine ECU located on the passenger side, it may apply to later model LS400s but I am unable to verify this.

The engine ECU is located on the other side of the panel directly below the glovebox.

The 1st step as always when working on the car is to remove the negative battery terminal to remove the risk of anything being shorted out during the process.

Step 1.

Open the glove box lid and prise out the 2 plastic covers over the support arms by pushing in an outward direction.

DSCF0828s.jpg

Once these are removed the support arms simply pull off the bracket on the glove box.

DSCF0829s.jpg

The glove box compartment is hld in position by 5 plastic stud fixings, 3 along the bottom and 2 along the top. Using a suitable tool prise these out and then using a plastic blade depress the top edge of the compartment then pull it forward slightly.

DSCF0830s.jpg

Remove the glove box light wiring by pushing the lug on the connector and then carefully pull out the right side of the glove box further and ensure the stay arms are pushed back through the slots. The right side stay arm is attached to the glovebox with a nylon connecting cord and damper mechanism so take care not to break this on removal.

DSCF0831s.jpg

Once the inner compartment is removed you can now access and remove the 2 10mm bolts holding the panel at the top either side of the glove box door.

DSCF0832s.jpg

DSCF0833s.jpg

From here remove the lower passenger side kick panel containing the foot well light, to remove the light socket twist the bulb holder.

This will then allow access and removal to a further 3 10mm bolts at the bottom of the panel, one at each end and one in the middle.

DSCF0834s.jpg

Carefully lower the panel down to the floor of the car to reveal the ECU as shown in the picture below, the loom will allow this without straining.

DSCF0835s.jpg

Reverse the above proceedure to refit everything.


 Report this tutorial


2 Comments

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now