I have a 2007 Toyota Camry 306 thousand miles. wipers will not work cooling fans will not work heater and air conditioning fan willnot work. signal lights work sporadic. headlights taillights brake lights all work fine. car runs and drives fine speed ometer will not work and brake light on the dash stays on. also when I turn the wipers on the motors rpms increase

Probably have a bad Door Airflow control box

all cars, same (air cooled engines)
first the engine must reach and hold 180F or more.
if not?, you freeze.
then the fan most work'; dash blower, does it?
then both heater core hoses must be fully hot 180F. hand felt are they?
then the heater damper most open.
same here.
http://www.fixkick.com/AirCond/heater.html

I would next look at the coolant temperature sensor, on which the car's computer depends for a signal to tell it when the engine is too hot. There might also be a suspicion that combustion gases are getting into the coolant, via a leaky head gasket. There is a test for that the mechanic can do.

Your radiator cooling fan will only come on when the engine temp has reached the point where it needs to have air forced through the radiator and thus bring engine heat back down to safe operating range. If your heater is not working check to make sure the fresh air vents aren't stuck open (are the controls stiff or not going all the way across?) check also that the heater shutoff valve lever which is usually situated on the firewall at the rear of the engine and can be found easily by tracing the hoses back from the thermostat housing aren't bent and/or seized up.

Probably the temperature sending unit...if not that the relays...they should be relatively cheap and easy to replace...

Yes it COULD be a bad relay. But then again, it COULD be a malfunctioning A/C high pressure switch or a bad engine coolant temperature switch, or bad ground circuit, or any of the wiring in-between. If your Camry is equipped with the 2.5L engine, it could also be the radiator cooling fan control amplifier.The system must be properly diagnosed to locate the source of the fault.

more likely to be a thermostat/fan temp sensor or fan problem.(dont you just love armchair mechanics,any decent tech would start with the cheapest/obvious solution and work up).

GO TO THIS SiTE TO CHECK THE FUSE BOX!
http://vwtech.no-ip.info/images/golf/post90.gif

This are the FUSE and RELAY number SLOT!
Fuse No. Description Ampere Rating 1 Headlight, low beam, left 10 2 Headlight, low beam, right 10 3 Instrument panel lights, license plate lights 10 4 Glove compartment light 15 5 Wiper/washer 15 6 Fresh air blower 16-valve only: Air conditioning 20 7 Taillights, side marker light, right 10 8 Taillights, side marker light, left 0 9 Rear window defogger 20 10 2.0 16-valve only: Fog lights 15 11 Headlight, high beam, left,High beam indicator light 10 12 Headlight, high beam, right 10 13 Horn 16-valve only: Radiator cooling fan 10 14 Back-up lights, washer nozzle heaters 10 15 2.0 16-valve only: Engine electronics, stabilizer valve, cold start valve 10 16 Instrument panel warning lights, 16-valve only: Multi function indicator 15 17 Emergency flasher switch, turn signals 10 18 Fuel pump, oxygen sensor heater 20 19 Radiator cooling fan, air conditioning 30 20 Brake lights, cruise control 10 21 Interior lights, digital clock 16-valve only: Luggage compartment light,multi function indicator, central locking 15 22 Radio, cigarette lighter 10
Relays Relay No. Description 1 Air conditioning 2 Open 3 Digifant control unit 4 Load reduction relay 5 Low coolant level control unit or Open 6 Emergency flashers 7 Rear Wiper 8 Intermittent wipers 9 Seat belt warning system control unit (possibly headlight warning too?) 10 Fog lights 11 Horn 12 Fuel pump (except diesel)Glow plugs (diesel) 13 Radiator cooling fan after run (except 16-valve)2.0 16-valve: Starter interlock relay 14 Automatic trans., coolant temperature indicator,starter interlock relay (except 2.0 16-valve)2.0 16-valve: Radiator cooling fan after run 15 ABS pump relay 16 ABS relay 17 Heated seat control unit, driver 18 Heated seat control unit, passenger, or power seat circuit breaker 19 Automatic transmission 20 Open 21 Power window relay, ABS hydraulic pump fuse 22 ABS valves fuse 23 Air conditioning, power seat fuse 24 Power window fuse

the a/c when running creates a lot of extra heat and needs second fan, if second fan is not working right this will cause overheating, if fan is creating a load noise it is likely bearing is bad and will not spin as fast as it should not cooling. also check that fan it not hitting anything if you describe loud noise i can give better idea

Replace the cooling fan sending unit.