IGNITION KEY TURNS ON BUT NOTHING WORKS

SOURCE: Ignition turns and key warning light comes on. Its a 98 Ford Expl

Sounds Like the Starter RELAY is Bad After Exhausting All other Test, Go For The RELAY
A SURE-SHOT way Is to Jumper Wire From Battery to (STARTER SIDE) of Relay if starter Works then Its the Starter Relay if NOT>>Then Its the STARTER<) Relay Instruction Below. STARTER Instructions Very Bottom
REMOVAL
WARNING: WHEN PERFORMING MAINTENANCE ON THE STARTING SYSTEM BE AWARE THAT HEAVY GAUGE LEADS ARE CONNECTED DIRECTLY TO THE BATTERY. MAKE SURE PROTECTIVE CAPS ARE IN PLACE.

1. Disconnect the battery ground cable.
   1. Disconnect the starter motor solenoid relay switch wiring.
   1. Remove the protective cover.
   2. Disconnect the push-on electrical connector.
   3. Remove the nuts.
   4. Remove the cable.
      1. Remove the starter motor solenoid relay switch.
      1. Remove the engine sensor/generator wires.
      2. Remove the bolts and ground wire.
      3. Remove the starter motor solenoid relay switch.
      INSTALLATION
      
   5. Follow the removal procedure in reverse order NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

1. Disconnect the battery ground cable.
2. Raise and support the vehicle.
3. Remove the starter motor solenoid terminal cover.
   1. Disconnect the starter wires.
   1. Remove the nuts.
   2. Disconnect the wires.Remove the nut and the starter ground cable
   3. Remove the bolt and the starter motor.
      1. Follow the removal procedure in reverse order. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
      
      

SOURCE: it wont start turn key dash lights up nothing happens

sounds like a dead battery to start with. Not even enough juice in the battery to energize the solenoid / brake interlock to get it out of PARK. Hope this helps

SOURCE: after turning ignition, only parking lights work. low beam headlights were replaced recently. parking lights wont even turn off. headlights

I had an S-70 with the same problem what happens is the headlight switch tabs that hol it together broke and the switch was slightly separated and connection was not there for the headlights and also check the high beam see if headlights come on i dont think it is a relay or fuse??? proballally the headlight switch and easy to replace you even can use one from an 850 model

SOURCE: Engine won't start. Dash lights flash rapidly when key turned.

the battery says 12 volts but may be dropping to 4 or 5 under a load...i would suggest jumpstarting the car and see what happens.the battery should read in the high 12 volts and not less than 9.5 under cranking. the dash lights go out on your car when starting,and the alarm will go off ,and disable the ignition if the voltage is too low in cranking the car because the computer will shut it down and activate the anti theft.....check your battery posts are tight. best of luck

SOURCE: Wont start, gives error code IN 02 on dash

I had the same problem with my 94 jetta, I would also have the alarm turn on as I connected the battery, if you lower the fuse box being careful not to disconnect anything, there is a box to the upper driver-side aria(that is if you are laying on your back looking up under the dash) this is the alarm control unit, there should be a white label on the wires indicating so (think it says alarm in German) theres a 6 pin(wire) connector and a 10 pin. unplug both connectors and look at the 6 pin connector. There is numbers where the wires are located on the connector, if you take a piece of wire and "bridge" wires 5 and 6 (The largest wires on the connector, red/red w/black stripe) your starter should work, any problem with the alarm system can cause the starter to be disabled. after bridging the wires or simply connecting them do not plug anything back into the alarm box, after this you standard vehicle alarm will be disabled permanently, but you will be able to start your car. If this dose not fix the problem you may have a defective starter, hope this helps.