FZJ80 RS3000 Alarm issue (2 Viewers)

[JLH911]

I know. I know. Get rid of that POS alarm, but let's move past that.

The alarm unit had been working fine, then all of sudden, the alarm stopped working and the alarm box under the driver's seat, as well as a relay at the kick panel, would click (fast clicking) on and off until I had to disconnect the negative battery cable.(btw battery is fully charged)

I had the alarm box looked at professionally and bench tested and all checked out fine. I got the alarm unit back and connected it along with all the plugs at the kick panel and wouldn't you know it, it's clicking again.

If I remove the clicking relay at the kick panel, then I only hear the clicking at the alarm box.

Anyone have any ideas as to what can be going on here?

 

[jonheld]

Well, you already know the answer as your alarm is now 28 years old.
What relay are you referring to?

 

[JLH911]

Well, you already know the answer as your alarm is now 28 years old.
What relay are you referring to?

 

[JLH911]

The one circled in red... Tail relay?


btw, why does the one under the one circled in red look like it's not plugged into the circuit board(white plastic board)

 

[jonheld]

The one circled in red... Tail relay?
btw, why does the one under the one circled in red look like it's not plugged into the circuit board(white plastic board)

The circled relay is the tail lamp relay.
The one below that is the circuit opening relay which runs the fuel pump in conjunction with the fuel pump relay. It hangs off the bottom of the relay block, and for some reason Toyota did not see fit to include that relay in the relay block picture in the EWD.
However it is shown in the EWD of earlier years.

From the 1996 EWD:

From the 1991 EWD:

 

[JLH911]

The circled relay is the tail lamp relay.
The one below that is the circuit opening relay which runs the fuel pump in conjunction with the fuel pump relay. It hangs off the bottom of the relay block, and for some reason Toyota did not see fit to include that relay in the relay block picture in the EWD.
However it is shown in the EWD of earlier years.

From the 1996 EWD:
View attachment 3841299

From the 1991 EWD:
View attachment 3841300

Very weird they did that. So now I'm just wondering why that relay was the one fast clicking.

 

[jonheld]

Very weird they did that. So now I'm just wondering why that relay was the one fast clicking.

Because the alarm flashes the lights.
You know what the answer is.

 

[Hornd]

The Ship has Sailed on:

• All OEM Alarm Systems
• All Heater Mixing Valves
• All Pesky Heater Hoses
• All Throttle Cables

Replace them and you will get another 25 Years.

One Might Add:
Most Exhaust Systems
Most Radiators
Most Front Row Seats
Most Mixing Valves for Rear Windshield Washer
All OEM Spare Tires if not Used in Tire Rotation.

 

[clx16]

You said it was professionally checked. How was that? If it was checked simular to the analysis used on the youtube channel "my mate vince" then the issue could be some other place. However I think that level of checking would have been pretty expensive. Check your bulbs and also check the relay. There is a process for testing them. There is documentation here on mud for the connector pinout under the seat and you could use that to test the wiring harness and the functions for each wire. You could also get a multi channel oscilloscope and back probe the connections with the alarm connected and see if that gives you interesting details as to what is happening.

Swapping your alarm in to another vehicle to test would help you identify the location of the issue. Also do you have aftermarket stuff installed like remote start etc?

My alarm started going off randomly. It did it twice and I yanked it out and put in a viper. Used the Lutz auto adapter to keep the wiring harness the same.

In the end the guy who does not run from electrical issues @jonheld has likely provided the most reasonable advice.

 

[JLH911]

You said it was professionally checked. How was that? If it was checked simular to the analysis used on the youtube channel "my mate vince" then the issue could be some other place. However I think that level of checking would have been pretty expensive. Check your bulbs and also check the relay. There is a process for testing them. There is documentation here on mud for the connector pinout under the seat and you could use that to test the wiring harness and the functions for each wire. You could also get a multi channel oscilloscope and back probe the connections with the alarm connected and see if that gives you interesting details as to what is happening.

Swapping your alarm in to another vehicle to test would help you identify the location of the issue. Also do you have aftermarket stuff installed like remote start etc?

My alarm started going off randomly. It did it twice and I yanked it out and put in a viper. Used the Lutz auto adapter to keep the wiring harness the same.

In the end the guy who does not run from electrical issues @jonheld has likely provided the most reasonable advice.

Sorry, I just saw this. It was checked by a fellow mudder who is an EE and mocked up an alarm system. He's done a lot of work for fellow mudders here. He showed me a video of the main alarm unit working by arming, unlocking and locking etc. I will check the relays with known good ones. Believe it or not, I asked Grok (A.I.) what it thinks the issue could be and it gave me a nice list of things that could be causing it and how to check them so that's what I'll be doing soon. I will also look for the connector pin out diagram. That should help. Oh, no other extra stuff like remote start. Good idea on maybe upgrading to a modern system using the Lutz adapter. I'm going to give this system one last try. Thanks for the input.