[ashealy478]

Is the horn relay part of the integration relay on 2000 tundra?

 

[Muddog16]

Hello are these pdf's for a 2000 tundra?

 

[greg13]

I am finding that water leaks can become a MAJOR problem in Tundras. I have been wrestling with Electrical problems in my 02 for months. I changed the Integration relay, traced circuits, and finally pulled the fuse box completely out. when I did I found MAJOR corrosion on 4 or 5 of the plugs with a few terminals totally corroded off.
I had cut a box assembly out of a wreck (with the connector plugs) so I had a spare and extra connectors to change. I would LIKE to say all of the problems are gone, but there are still more that need attention. the Integration relay (circuit board) is held in by 4 screws and can be changed, but make sure that is the only problem and make sure it is the same board there is a part # & revision # on it so make sure everything is the same. there was a date of manufacture break on them also.

Greg

 

[Audio_Phill]

Reviving another old thread, was this ever figured out?? My 02 Sequoia Clock, Mirrors, and cigar lighter loose power intermittently, thinking its the integration relay, Which does not appear to be part of the fuse box like mentioned above. Totally different fuse box on an 02.

 

[shootemintheface]

In the FSM it refers page BE-71 for trouble shooting the integration relay, but it's nowhere to be found. I've been trouble shooting both non-working power windows but power lock works. No power to pin #9 on the power windows switch, even got a new master driver side power window switch. The 30A POWER fuse is good. Power Relay was taken out and applied 12 volt power to battery and it click's and checked while powered, good continuity.

 

[tundraX]

Does the integration relay control, or is part of the interior power timer? My interior goes dead after 10 seconds of turning the ignition switch off. no lights no locks. only courtesy lights on the doors. it's a 2008 tundra sr5. anyone have any ideas to what's going on?

 

[leighv]

There is a circuit board with surface mounted devices (SMD) inside the fuse panel. the whole thing can be taken apart. there are layered pieces of plastic with conductors to the different pins for the plugs and fuses.

if you have ever had a windshield leak check the box for corrosion inside. be very patient and take your time. comes apart without breaking, with two very small/thin flat head screw drivers

edit whoops, got ambitious. i'm talking the J/B. but still worth looking into if you have strange problems. i also had one of the fuse holding metal pieces holding the fuse loosely. had to disassemble and squeeze them together to hold fuses tighter. (just the radio in this case, but i did them all)

it looks like the integration relay is particular to models other than the double cab.