In a 1998 Honda Civic, the heater relay is typically located in the under-hood fuse/relay box, which is situated near the battery. To access it, you may need to remove the cover of the fuse box, and the heater relay will be marked on the diagram inside the cover. If you're having trouble finding it, consulting the vehicle's service manual can provide specific details.
The headlight relay on a 98 Civic is located on the driver's side. It is under the dash near where the door closes.
The horn relay on a 1998 Civic DX is located under the dash on the driver's side. It is just to the left of the turn signal flasher, and to the left of the steering column.
Under the steering column
There is none - usually it is the module in the top of the heater / blower box (resistor module) that is the problem.
where is the tdc in my 98 civic ex sedan
The wiper relay on a 98 Wrangler is located under the hood. It is in the relay/fuse housing on the passenger side of the car.
its located under the steering column.
The 1998 Dodge Neon does not have a relay. It does have a blower motor resistor that could be bad.
please tell me how to remove the heater to get too the heater coil
The fuel pump relay is located under the hood, on the drivers side, inside the fuse/relay center.
In the engine compartment fuse/relay box.
on the right side of the engine firewall on a relay brackt. which one?