Best answer I've found, in my search for the same answer is that you have to remove the headlight assembly to get access to the bulb (thanks Toyota, for making this easy! I didn't expect it to be harder to do this simple task on a Toyota than of my Dodge Caravan for God's sake!)
You have to remove the headlight assembly mounting screws and remove the headlight assembly. Remove the power cable by squeezing the lock clip to release the cable, then release the bulb from the headlight assembly. Reverse process for the new bulb. I've only read how to do this - not done it on my own yet, so I expect to learn (and be frustrated) in my own replacement efforts later today. Hope this helps.
How to replace 1998 Toyota corolla headlights
Open the hood of the engine compartment to your 1994 Toyota Corolla. Remove the wiring harness from the headlight. Remove the headlight retraining bolts from the headlight assembly. Reverse the process to install the new headlight.
The thermostat on a 1998 Toyota Corolla is located next to the alternator. The alternator may have to be taken off to replace the thermostat.
how do you replace headlight bulb in a 2001 celica gts
The headlight relay on a 2005 Toyota Corolla is located in the engine compartment fuse box. Prop the hood open the find the fuse box. The relay is plugged in the top slot of the fuse box.
Take out the headlight is the easiest way!
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You just do it. Hint there is a tricky switch you need to find once you do the whole things fall apart.
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