EP82 Wiring/Connector ID's. There is a PDF available!


I've lost count the number of times that forum members (from this forum and elsewhere) have been asking for a wiring diagram for the EP82 and no-one has been able to provide much more than a link to a few ECU pinout diagrams (originated from StreetLegalStarlet forums) and some other minor info.

As part of the build in shoe-horning a EP82 4E-FTE into my 1978 Mini Clubman, in the last two months I have been documenting the wiring looms that came with my (1991 Gen 1) EP82 Starlet GT front cut. The door wiring looms or the rear wiring loom was not provided with the front cut, but have managed to detail a lot anyway.

Since I won't be using A/C, power steering and power windows in my Mini, what has been omitted from the doc is the exact wiring for power windows, power mirrors and exact HVAC switching and control. My front cut had no TEMS or ABS so that's not available either.

This PDF DOES document :
The loom layout (to scale) of the two main wiring looms
A photo, ID, pinouts of every connector with wiring colours from each
Quick reference table for Connector IDs
Conduction tables for the combination switches (lighting, indicators, wipers)
Fuse & relay ID's and pinouts of every relay
Wiring diagram of the instrument cluster (for my Gen 1 EP82)
The configuration of A/C Condenser and radiator fan relays and how they work in conjunction with the coolant temperature sensor and A/C refrigerant pressure switches

The Pista de resistance is a wiring diagram that covers every fuse, every relay, and (most) switches in the car. This is a diagram that has been asked for so many times on multiple forums, yet no-one has been able to provide one. I've put a lot of work and detail into this, however please don't expect 100% details for the whole car from this diagram, but in 3 years I've never been able to find anything like this for the EP82.

I have spent over 150 hours on this doc and I am providing it FREE for the good of the wider community. Download it, have a look and if anyone has any corrections, suggestions of simple ideas on how to improve it, just let me know via PM or email.

EDIT The PDF is now on TGTT.com - see below

Enjoy :)

(~10Mb, 19 pages)
Linky : EP82 Starlet Wiring and Connectors (PDF)

NOTE : This link / doc has been superseded with the latest version 1.7 (June 2021). Please PM me (or email me at the address in the above doc) for the latest version, or download from my Google Drive https://drive.google.com/file/d/1jR4_e_Llj-uATG1XF6YPAMZzC0mQGY5F/view
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That is excellent, there will be a few happy people when they view that!

I have done quite a few conversions putting the 4EFTE into different Toyotas, I have only used the basic ECU line diagram available on the site and it makes it a ball ache for sure. Wish I had of had this before now but I was never keen enough to make one myself!


do you have one for the 4efe second generation wiring loom? thats is a PDF format wiring diagram
Unfortunately not. I made this PDF as a side-task of an overall engine swap project. Not much actually changed between the generations so the wiring loom would be quite close (as is the 4EFE vs 4EFTE) - at least you have this PDF at a starting point!


Need this PDF for an EP91

What is the pinout info for connector 41 and 42?

Sorry I cant help you for the EP91 - I only had the EP82 loom for my project. I don't have the further pinout info of the connectors between the engine bay & cabin looms (Connector 41/42), as I spent more than enough weeks documenting what I already had.


So 8 years on and I've made some updates to the document as I've identified some (at the time) unknown connectors and wiring in regards to the power windows and TEMS. I've contacted a few forum admins to see if anyone if still active here - to get the new version uploaded to the Wiki / Awesomely Helpful Info section. Watch this space...