Skip to content
View in the app

A better way to browse. Learn more.

rollaclub.com

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

KE20 TE21 1974 Toyota Corolla 1588cc Blowing fuses

Featured Replies

OK, here's a better diagram, off the KE17 but it looks the same. Mainly, you can read wire colours off it, which generally on the web you can't.

696527797_KE17wiringdiagram.jpg.032613396483632614d15f52aafb2e49.jpg

Take the wires off the alty and tape each wire up separately so they can't short out.

Alty.jpeg.43cede2829cc1dcbf7c90cc0f0a0d4b7.jpeg

Check the wire colours on the regulator & unplug that.  See if the fuse blows with those two things disconnected.

reg.jpeg.b49961160e058b325983f374616f1e26.jpeg

Pull the insulation back on these & see the wire colours.

27372200_straywires.jpeg.4143c2a8269f80f9e3e84208d54600f4.jpeg

I don't know what this box is for.  Any ideas anyone?

1435826131_coilrelay.jpeg.5878b4a59a0a6868844750fa5b976b88.jpeg

I am guessing that metal box on the coil is a housing for the ballast resistor. The second pic of the coil shows the cables coming out of the box and onto the terminals of the coil. The only problem with that idea is there no ballast resistor on the wiring diagram?

Yes, and the coil is a 12V, so it doesn't use a ballast.  Some sort of relay?

  • 1 month later...
  • Author

So the cars been back on the road and running smoothly thanks to God. Mechanic called in his Dominican buddy who took a day on it and went back to DR before I got a chance to ask him what it was.  We spoke on the phone for a second and he s said it was wired wrong. Couldn’t say much more in the few minutes we spoke. So thankfully with all your guys help and then diagrans I printed out and left for  him I think it made a world of difference.  Thanks a bunch. 

Hi Christopher,

                          Glad it all worked out OK in the end !

Quote

 We spoke on the phone for a second and he s said it was wired wrong.

Would be nice to find out what was the wiring error.  If you ever talk to your DR mate again, please find out, what it exactly was,  & let us know here.

Quote

 Thanks a bunch. 

You're welcome !   We all here like a happy ending, & another Rolla keeps on rollin !

Cheers Banjo

  • Author

Question does anyone have a fuse box cover? In need desperate need. Lol. Cheers

What's it look like?? A long straight one like Banjo's post??  8 or 10 fuses??

I can have a look at the wrecker, but they are only KE35 & KE55.  They've gone to 2-rows wide by then I think.

Another chance may be at Woolshed Rallying on the old Coronas lying around, I'll be up there next week for a look if you can tell me what shape I'm looking for .

  • 6 months later...

Hey fellas sorry to intrude.

First of all, let me say that I'm happy that this is still a live forum and we haven't all abandoned such forums for FB.

I'm the US and have a TE21 w/ a 1.8 3TC.

While y'all are on topic of guessing what certain electrical boxes do - can anybody tell me what this thing at the base of my fuse block is? It started buzzing recently - no doubt due to a short I created by daring to *touch* a bundle of wiring - and I unplugged it.

Everything still seems to work, including starter, flashers, wiper, and all lights....

Screen Shot 2019-03-25 at 4.08.25 AM.png

Looks like a relay.  Get the wire colours that go into it and check a wiring diagram for their function.

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.