ther are 2 small black posts that stick up from the flat trim slightly behind and above the headlights simply unscrew them while lifting the rods up & out this lets the whole headlight come out hen you simply unclip the plg & put in the new bulb
See the following site:
You replace the bulb the same as a 1998, which is answered further down the page.
the headlight assembly needs to come out in order to change the bulb ive had to do that to my 98 as well.
We have a 1998 Bounder Motorhome (with ford engine) how do we replace the headlight switch?
There are two clips on the wall that holds the headlights. Push the clips away and pull the headlight housing out.
the bumper will have to be removed.
the headlight assembly needs to come out in order to replace the bulb.
If you can't get to the back of the light assy you have to remove it from the vehicle and the bulb screws in.
changing the bulb
How to replace 1998 Toyota corolla headlights
drop the bumper and take the headlight housing out
There is no 1998 CTS