Copy-print- keep in glovebox.

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Joined
Oct 5, 2003
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Location
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A bare bones list of fuses/ relays and tools you should have to get you home.

Can always add a page if you guys want to add anything to it.
I put this together from the FAQ pages.
(Delete the tools paragraph below and the rest will fit on one page.)


TOOLS you should carry- Would fit in a tool roll up.
Pliers, Spark plug removal tool, screwdrivers and wrenches fund in
tool kit with tire tools in back on the left side
Emery cloth or other to clean battery connections (Wire brush)
Voltmeter
Timing light or other tool to validate spark
OBD II Scanner (Not reader) for 96 and up.
New packs of matches.


Print-
There are only three critical regular sized fuses required for the
engine to start and run
15A EFI located in the under hood fuse box
7.5A Ignition located in the fuse box at the drivers knee
15A ECU-IG located in the fuse box at the drivers knee
You should stock at least some 15A and 7.5 amp blade fuses if not a
complete set, but those two sizes are what you need to limp home.

Critical Relays
EFI main relay, under hood fuse box & Circuit opening relay, turns
fuel pump on and off, located behind the drivers left kick panel, Both
of these relays are the same part number, 90987-02004, you should have
one in the glove box.

Starter cut relay, for theft deterent, usually drivers left kick
panel, starter cut relay probably depends on witch alarm you have,
some trucks may not eve have this relay.

Fuel pump relay, changes the speed of the fuel pump, bolted to the
drivers side inner fender near the back on the edge of a large
opening. part number 28381-16020, not as cheap but roadside repairable
per Ricks instructions, so you do not have to stock this one.

The three come from Toyota as a set, all three are replaced at the
same time, they are cheap, everyone should have a set in their glove
box, and everyone should also carry an assortment of regular blade
fuses also,
"Main" Fusible link, critical as it is upstream of the 15A EFI fuse
under the hood, you can test this one from the drivers seat by turning
on the radio, headlights, ac/heat fan, defrost, stop light, tail
lights and telephone, if any of the above work then this fusible link
is good,

"AM1" Fusible link, critical as it is upstream of the ignition switch
and provides the power for to the starter solenoid, you can check this
one from the drivers seat by checking the horn/hazards, dome light,
diff locks, rear heat, turn signals, cigarette lighter, or wipers,
If you have the hazard & horn but none of the others check the big 50A
AM1 fuse in the under hood fuse box (50A AM1 fuse not to be confused
with the AM1 fusible link) Might not be a bad idea to stock a 50A fuse
incase the big AM1 fuse blows

"AM2" is probably the most engine centric, it provides power to the
ignition switch, the injectors, the igniter, the ignition coil, the
distributor, and the alternator control system, if you get the yellow
light on the volt meter with “key on engine off” this fusible link is
good.
 
Wow this is really great info! I have been thinking of putting together something like this, as I really like to be prepared. Thanks.:cheers:
 
good list, thanks :cheers:

A bare bones list of fuses/ relays and tools you should have to get you home.

Can always add a page if you guys want to add anything to it.
I put this together from the FAQ pages.
(Delete the tools paragraph below and the rest will fit on one page.)


TOOLS you should carry- Would fit in a tool roll up.
Pliers, Spark plug removal tool, screwdrivers and wrenches fund in
tool kit with tire tools in back on the left side
Emery cloth or other to clean battery connections (Wire brush)
Voltmeter
Timing light or other tool to validate spark
OBD II Scanner (Not reader) for 96 and up.
New packs of matches.


Print-
There are only three critical regular sized fuses required for the
engine to start and run
15A EFI located in the under hood fuse box
7.5A Ignition located in the fuse box at the drivers knee
15A ECU-IG located in the fuse box at the drivers knee
You should stock at least some 15A and 7.5 amp blade fuses if not a
complete set, but those two sizes are what you need to limp home.

Critical Relays
EFI main relay, under hood fuse box & Circuit opening relay, turns
fuel pump on and off, located behind the drivers left kick panel, Both
of these relays are the same part number, 90987-02004, you should have
one in the glove box.

Starter cut relay, for theft deterent, usually drivers left kick
panel, starter cut relay probably depends on witch alarm you have,
some trucks may not eve have this relay.

Fuel pump relay, changes the speed of the fuel pump, bolted to the
drivers side inner fender near the back on the edge of a large
opening. part number 28381-16020, not as cheap but roadside repairable
per Ricks instructions, so you do not have to stock this one.

The three come from Toyota as a set, all three are replaced at the
same time, they are cheap, everyone should have a set in their glove
box, and everyone should also carry an assortment of regular blade
fuses also,
"Main" Fusible link, critical as it is upstream of the 15A EFI fuse
under the hood, you can test this one from the drivers seat by turning
on the radio, headlights, ac/heat fan, defrost, stop light, tail
lights and telephone, if any of the above work then this fusible link
is good,

"AM1" Fusible link, critical as it is upstream of the ignition switch
and provides the power for to the starter solenoid, you can check this
one from the drivers seat by checking the horn/hazards, dome light,
diff locks, rear heat, turn signals, cigarette lighter, or wipers,
If you have the hazard & horn but none of the others check the big 50A
AM1 fuse in the under hood fuse box (50A AM1 fuse not to be confused
with the AM1 fusible link) Might not be a bad idea to stock a 50A fuse
incase the big AM1 fuse blows

"AM2" is probably the most engine centric, it provides power to the
ignition switch, the injectors, the igniter, the ignition coil, the
distributor, and the alternator control system, if you get the yellow
light on the volt meter with “key on engine off” this fusible link is
good.
 
bump
 
Printed, highlighted and put in my "book for the LC" in the glove box!
 
No good to me as mine is diesel, if someone steals the batteries and the starter I just need a pair of grips to undo the fuel cut off and give it a shove and drive home, I love that kind of independence.

For you petrol guys it is a great idea though and worthy of a 'like' IMO.

regards

Dave
 
Just as a suggestion for those of us who don't keep enough spares onboard, I can add that there's an open slot in the relay panel to stash just a spare EFI relay, and since it is a double-duty part, I chose it as my spare & as long as you remember it's there, it can't be tossed by a wife/spouse or anyone cleaning out the 80 for you.

Great contribution doing this list - I just bought a tool roll & most your items are in mine, but emery cloth & a few small grease packets I do need to add.
 
Bump
 
@PDoyle I would be interested to know of the people who have read this post over the past 5 years, how many have take your advice and put a kit in their trucks. And how many have had to use it. Maybe a poll...
 
@PDoyle I would be interested to know of the people who have read this post over the past 5 years, how many have take your advice and put a kit in their trucks. And how many have had to use it. Maybe a poll...

My guess would be that anyone who actually put together a spare parts kit this thorough probably also keeps their vehicle in good running order, and as such has never needed to use it.

Still good info though.
 
Thank You! This is invaluable information for your self recovery safety spares and tool kit!!!

Please add in a PHH (pesky heater hose) For the people who have not yet upgraded to silicone

yet. This factory heater return hose can crack on you from being hardened due to age. If it

does, you will loose your coolant, and you will no longer be moving anywhere. Please change

yours ahead of time, or if you haven't- carry the kit with you. It is hard to reach, and difficult to

install, but if it goes- you have no choice.

All of these parts on the print out list are the parts that seem to fail at the most inconvenient

times, leaving someone stranded in the middle of nowhere.
 
Last edited:
@PDoyle I would be interested to know of the people who have read this post over the past 5 years, how many have take your advice and put a kit in their trucks. And how many have had to use it. Maybe a poll...

Total of 5. About 1 a year.
 
I always have the list in the truck. I've used it to source an extra set of relays already and it's proven handy with my alternator charge wire upgrade to know which fusible link did what.
 
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