DIY 01-02 Corolla Fog Lamp Install

01-02 Corolla Fog Lamp Install

01-02 Corolla Foglamp Install (Part 1 - Exterior)

Why 2 sections? because I haven't ordered the interior parts yet.

Equipment
2x fog lamps (1 left, 1 right)
flat tip screwdriver
deep socket 10mm ratchet or 10mm wrench
2 unknown bolts .. metric OD=10mm
Time to complete section 1: 40 minutes

First get a general idea of where all the locations are you'll need to work on. You can obviously guess where the foglamps go and get a general idea of the interior items from this diagram.


getting under the car you can see where the plastic cover sits that replaces the fog lamp. if you move your head almost directly under that plastic wedge and look upwards you can see a wire and connector tied below the headlamp. It's just flimsy tape that you really don't even need scissors to break.


First step is to remove the old plastic covers. Above you can see there is 4 clips that hold the plastic piece in place. I found that it's easier to flex the actual bumper than these clips because they are extremely hard and do not flex much. I removed them by prying above and below the plastic piece to flex the bumper enough for them to escape.


Once these are out you have a nice ugly hole in your bumper. I took a wet rag and cleaned the areas exposed by removing the plastic covers just because I didn't want any dirt lines around the edges of the new lamps.

The next step is to pull the fog lamp harness wires free from the metal bar under the headlamps. I did this after installing the lamps and could barely fit my hand in any more, so I suggest doing it first. I simply pulled on the wires a little and the tape came off. No tools needed; if you remove the tape this way please DO NOT pull on the connector. pull the wire only; otherwise you risk damage to the connector and a wire could fall out.

Once that is complete it's time to refer to our picture again. where-as the old plastic plug had 4 points it holds onto the frame, the new lamp has 2 metal spacers, a screw, and a slotted piece on the side. You'll see a partially pushed through section in the bumper where the red line is above. the fog is pushed sideways into that slot, then straight back so the screw on the lamp goes through the hole on the left of the photo. With a gentle push you'll hear a light snap sound. Hold the lamp gently to make sure it doesn't fall out since it's still loose.


Now it's time to get under the car again and stick a bolt on to the back of the screw and tighten to 1.0 NM (10 kgf-cm,9 in.-lbf). I don't know the size of the bolts you need but I was lucky enough to find 2 that worked in my garage. Now you can connect up the dangling foglamp harness wire to the wire coming out the back of the lamp.
(notice the silver dial in back.. that's for adjusting the lamps aim)


Go OOOh and AHHh at your new fog lamps as you wait in suspense for Part 2 - Switches & Relays

no money left It'll be months before I have any again. if ever.

those do not look like 01-02 foglamps at all. the connectors on mine only had 3 pins and the wires we're about 6 inches then they plug into the onboard harness under the bumper
oh, I see you have an 03. That kit doesn't look like an OEM replacement really since it has a fog lamp button. All the corollas have a ring that turns on the headlight wand I think.

not really, the wiring seems somewhat generic. You would connect the relays between the battery and each light, then the switch to the battery and the crossed wires of the relay's signal wires on the other side.

edit:

ok I looked at your pictures, I see what's wrong.

they are using a single relay for the whole system. so, those bare wires coming off the fog lamps should have one of those 4 pin connectors on it. it seems to be missing?!? so ugh, that sucks

they must expect you to add extra wire inbetween the two and solder it or something

the relay is NOT already there. I've looked. I just could never afford to finish the project.

well, 1 of my lenses is shattered at this point. the project is sorta dead in the water unless I rip apart the lens and try to seal it from the inside out.

I finished this project a while back.

After all the above is finished install a new 15 amp fuse in your panel (labeled fog on the back of the little cubby box diagram.

to install the oem switch you remove the foot guard, driver side kick panel, the lower plastic, remove the metal kick plate & loosen the steering shaft cover .. 2 screws that can only be reached by turning the steering wheel, and 1 that sits below. Pull the bottom part of the cover, then loosen the screw near the key hole that holds the top part of the cover snug against the steering shaft. Disconnect the wiring harness to the wand, remove the 2 screws, slide it out of its track, replace with the new one and reassemble.

The relay goes in an empty relay socket way up in the driver side dash. If you get your head way down there you can see where it goes. Way up top of the relay junction panel toward the firewall. after this your fogs should now work.