I have a 1994 plymouth sundance when the fan is turned on the temp, and fuel gauge peg out (read maximum) the volt gauge reads zero. Also both green arrow turn singal indicators on the dash light up. Also I have a scanner. Where do I hook it up?

Have a look on the link below. It may be a problem unique to your particular model of car:
http://repairpal.com/fueltemperature-gauges-may-fail-or-read-maximum-at-all-times-924
Fuel temperature gauges may fail or read maximum at all times Toyota...

check relay in your electrical box on the drivers side under the hood

cooling fan does not come on at all

Thermostat might be your cause or a blown fuse maybe

Hm. auto seat belt not moving points to a burnt out motor or a fuse is blown.

Have you had the starting and charging systems tested by Sears or Walmart?

How does it start?

To the rear of the gas tank under the car.

The trouble code that you gave is not a code. If it 35 its the radiator fan relay circuit. The 55 it means end of fault reading mode. Recheck code. Going to local autozone they will check it for free.

11 Timing belt skipped 1 tooth or more from initial learned value, Intermittent loss of either camshaft or crankshaft position sensor, No crank reference signal detected during engine cranking
12 Direct battery input to PCM/ECM was disconnected within the last 50 key-on cycles (normal)
13 No change in MAP from start to run
14 MAP sensor voltage too low
15 No vehicle speed sensor signal
17 Closed loop temp not reached or engine cold too long
21 02s sensor problem (oxygen sensor), upstream or down stream
22 Engine coolant temp sensor out of range
23 Intake air temp sensor out of range
24 Throttle Position sensor out of range
25 Idle air control motor circuits, target idle not reached (+/- 200),vacuum leak found
27 Injector control circuit
31 Evap purge flow monitor failure or evap solenoid circuit
32 EGR system failure
33 A/C clutch relay circuit
34 Speed control Solenoid circuits
35 Rad Fan control relay circuit
37 Torque converter clutch solenoid CKT or park/neutral switch failure
41 Generator field not switching properly
42 Fuel pump relay control ckt, Auto shutdown relay control ckt, No ASD relay output voltage at PCM, Fuel level sending unit volts out of range, Fuel level unit No change over miles
43 Multiple/ single cylinder misfire
44 Battery temp sensor volts out of range
46 Charging system voltage too low
51 Fuel system lean
52 Fuel system rich
53 Internal control failure
54 No Cam signal at PCM
55 End of error messages (If you get this only, no errors were found)
62 PCM failure SRI mile not stored
63 PCM Failure EEPROM write denied
64 Catalytic Converter Efficiency Failure
65 Power steering switch failur

check the gauge itself it may b bad or the sender is faulty

ok let me help you get started
this isnt going to be easy we need to do a bunch of testing.
you will need a 12 volt test light.
remove the negitive battery cable and connect one side of your test light to the battery negitive and the other side to the battery cable . and with the key off.. so now if you have a short some where the light should be lit. now what we have to do is start to pull fuses untill the light goes out. and when you find the fuse that is causing your short and drain your battery . then we have to look into the section of the wiring and components.
let me know what you find
later paul