wiring harness help

[bravekozak]

I just found an old picture I took which answered both of my questions. Thanks for everyone's help. The H300 black relay is for the EFE. The wires near the fuse panel are for the clutch/brake pedal switches, etc.
I agree that it is tough to see or take a picture behind the ECU.

[bravekozak]

New question.

The brake on-off (BOO) switch. Does it control the stop lights? Or, does it only send a signal to the ECA?

[bravekozak]

I removed the barometric pressure switch and I put a multimeter on the brake on-off switch as well as the clutch engage switch. the both allow current to flow when depressed. The only signal going to the ECA must have been on/off.

[bravekozak]

New question. Carb 89. The blue/red wire goes from the blower switch to ECA pin 1H.
Does anyone have any clue why the blower switch is connected to the computer?

[bravekozak]

I always seem to answer my own questions before there is a respomse.
Upon close examination of the switch with a multimeter, full power only goes to the ECA through the blower switch when the fan is either on 2 or 3. Not on 1. There is a curved contact attached to the blue/red terminal. It must indicate increased electrical load to the ECA. Maybe the ECA causes the engine to rev a smidge faster?

[Movin]

I always seem to answer my own questions before there is a respomse.
Upon close examination of the switch with a multimeter, power only goes to the ECA through the blower switch when the fan is either on 2 or 3. Not on 1. There is a curved contact attached to the blue/red terminal. It must indicate electrical load to the ECA. Maybe the ECA causes the engine to rev a smidge faster?

Right!!
Brakes, headlights, blower, rad fan, rear defrost, Canadian daytime running lights all report for idle stability.

[AlaskaFestivaGuy]

Bravekozak,

You mentioned "I also have the exact Mazda spade connectors from Eastern Beaver."

I've been looking for original-style spade connectors to add to my wiring hardnesses for "transportable" trailer light wiring:

http://www.fordfestiva.com/forums/showthread.php?31503-New-trailer-hitch-wiring-electrical-connector-question&highlight=connectors

I looked at www.EasternBeaver.com, but don't see anything about connectors. Tell me you've found a source of what I need and where to buy!

[AlaskaFestivaGuy]

I think I may have found the connectors (item 6P250) here:

http://www.easternbeaver.com/Main/Elec__Products/Connectors/CNA250-TL/cna250-tl.html

They even appear to have terminal extraction tools here:

http://www.easternbeaver.com/Main/Elec__Products/Tools/tools.html

[bravekozak]

I unfortunately misplaced my Green Hero terminal extractor. That turned out to be a $40 boo-boo. I had to order another set last Wednesday. I know that someday, I will find it again.

Alaska, I think you will need waterproof connectors for your trailer lights.

Those terminals in the thumbnail should also snap into our stock Mazda connectors.

[XFSE71]

I am identifying every wire in the 89 carb harness. I am installing relays and wiring for power windows, power antenna, power locks, electric fuel pump. I am also wiring a dash clock, an illumination delay, remote control door locks, fuel door popper. I am getting rid off all ECU wiring, 4th gear switch, etc.

there goes your 40mpg. gonna put in power recliner seats too? Maybe add a luggage rack and moon roof. continental kit anyone?

[bravekozak]

No, not quite that far. I will put in Fesiva embroidered mats and a Festiva shifter knob. My last thing I will do before stopping will be to install gas struts for my hood.

[XFSE71]

New question. Carb 89. The blue/red wire goes from the blower switch to ECA pin 1H.
Does anyone have any clue why the blower switch is connected to the computer?

I know why the blower is connected to the ECA. It is a LOAD SIGNAL to the ECA to prevent engine stalling with additional engine load.

Oh, now I see you and Movin already got it handled ... never mind.

[AlaskaFestivaGuy]

Bravekozak,

These connectors will be INSIDE the car. As explained in my linked-to post, I'll be inserting a short (6" or less) in-line cable onto each tail light assembly and plugging the chassis harness into these short cables. Wiring coming off the short cables will merge together to exit the vehicle to the trailer -- or drive a device stuck on the rear window which wirelessly transmits light-command signals to a matching command-receiving device on the trailer.

[bravekozak]

New question. 89 carb harness. The Clutch Engage Switch (CES) that is used by the ECU to detect an in-gear (load) condition, is it normally open or normally closed? I am hoping it is normally closed so that I can use it for cruise. I am assuming current would flow to the ECA while the clutch is engaged, and would stop flowing when the pedal is depressed (no load). The CES switch goes to ground. I guess power is coming from the ECA. Can someone get a multimeter and do a quick test on the switch? My car is still in storage about 20 miles away. Please let me know if there is no continuity when the clutch pedal is depressed. Thanks.

[bravekozak]

Thanks. The answer is normally open. I have to find another switch with the same thread. Juice flows when you depress the clutch pedal.