Hi- Is it the fuel pump relay ? This relay shuts the fuel pump off in case of an accident or receiving a hard bump as if getting lightly rearended at a stop light. Please do not try to bypass it. It is there for emergency fuel shutoff. It sometimes can just be reset. It is under the rear trim panel below the hatch latch above spare tire. This is in a hatch back. Some other cars cars have it on the rear left tire hump inside trunk.
location of the fan relay switch on a 1989 Chevy Corsica
on the tranny
The 1989 Toyota Corolla tail light relay switch can be found in the fuse box. The tail light relay switch will be in the third column, second from the top.
The 1989 Chevy Silverado pickup truck window wiper relay switch can be found on the firewall in the engine compartment. The relay switch will be on the passenger side of the firewall.
where is the horn relay
The 1989 Honda accord fuel pump relay switch is contained in a square metal box. The switch will have two wires going to it. The switch should be labeled.
On a 1989 Ford Mustang : The fuel pump shut off switch ( inertia switch ) is in the trunk / cargo area It is between the tail lights and is covered by an oval shaped rubber " plug "
you gotta take the dash off to get to them :)
Bad switch or relay
The 1989 Honda Accord blower motor relay switch can be found on the firewall in the engine compartment. The blower motor relay switch will be on the passenger side of the firewall.
Yeah, you can hook it to the battery. If you do that be sure to hook it to a switch with a nice bright LED or a line that is only active when the key is turned. I made the mistake of not doing that a few years ago and the fan ran until my battery went dry.