On the wiper motor plug i have four pins for argument sake i will refer to left lower right lower upper left and upper right. ok so i have 12 vdc across lower left and lower right, i turn switch on and i have 12vdc on lower right and upper right is this correct,i never get a change on upper left

If the fuse is good, check for an open in the wiring harness.

Do you know how to do electrical testing ?
PINPOINT TEST E: WINDSHIELD WIPERS WILL NOT PARK AT PROPER POSITION E1 CHECK WIPER MOTOR GROUND

• Disconnect connector from windshield wiper motor.
• Check continuity to ground at Circuit 57 (BK).

Is ground OK? Yes No GO to E2 . SERVICE open in Circuit 57 (BK). RESTORE vehicle. RETEST system. E2 CHECK FOR POWER AT WIPER MOTOR

• Place ignition switch at RUN and multi-function switch at OFF.
• Check for battery voltage between Pin 1, Circuit 65 (DG) and Pin 4, Circuit 57 (BK) at the windshield wiper motor connector.

Is B+ present? Yes No GO to E3 . SERVICE open circuits. RESTORE vehicle. RETEST system. E3 CHECK MOTOR CIRCUIT CONTINUITY THROUGH WINDSHIELD WIPER CONTROL MODULE

• With multi-function switch at OFF, check continuity between Circuit 28 (BK/PK) and 56 (DB/O) and between Circuits 61 (Y/R) and 63 (R).

Is continuity OK? Yes No GO to E5 . GO to E4 . E4 CHECK CIRCUITS TO WIPER CONTROL MODULE

• Disconnect wiper control module connector.
• Check continuity of Circuits according to the chart below from the wiper motor to the wiper control module.
  
  Wiper Control Module Connector Wiper Motor Connector Pin Circuit Pin 6 Pin 2 28 (BK/PK) Pin 8 Pin 6 56 (DB/O) Pin 12 Pin 5 61 (Y/R) Pin 13 Pin 3 63 (R)

Is continuity present? Yes No REPLACE wiper control module. RESTORE vehicle. RETEST system. SERVICE open circuits. RESTORE vehicle. RETEST system. E5 CHECK WIPER MOUNTING ARM/PIVOT SHAFT

• Check that windshield wiper mounting arm and pivot shaft and linkage is not bent, cracked or mis-positioned.

Is windshield wiper mounting arm and pivot shaft linkage OK? Yes No REPLACE windshield wiper motor. RESTORE vehicle. RETEST system.

with engine running and not.?
front or rear wiper,?????
toss dice, land on front......( 50/50 odds)
it's a network now, no more old style, point to point one wire for every thing on car and a ton of copper to match.
first test all fuses, then scan it.
or it will get expensive fast guessing.
the Switch bank brain under the wiper stalk
sends what you did, on to the LIN bus network,
The switch there does not actually drive lamps.
its just a digital switch, (some are 3 level logic)
The switches on some use a bank of internal resistors to tell the switch bank what you did.

this LIN data stream, is sent to the cluster brain
and also to the TIPM brain.(Allen Turing brains)
the cluster responds for many actions, taken and shows you what you did (EG) for blinkers, flashes the cluster TURN lamp. in same.
Wipers front.
the command for wipers are sent to the TIPM
this device, runs (DRIVES) a huge number of things on the car. (ask for schematics, I have it in pdf forum now,)
Totally Integrated power module. or TIPM
It drives the wiper motor using internal high powered electronics. Direct drive,..
It also senses the wipers location called the sense wire.
The TIPM brain, has complex logic to do all that
it gets many commands to do, (fast ,slow, intermittent wipe) and via TIPM computer memory instructions,
does the job.with pure software. inside.
the wipers can fail for many reasons besides simple mechanical jam or a cut wire.
1: fuse blown to any of those module. check them all if you are SAVVY!
2: TIPM bad,
3: TIPM power supply pin too low, say car battery is 10v ( are head lamps dim,, hummmmmmmmmm)
4: TIPM programming bad. (scrambled brain, needs re-flash)
5: CAN bus or LIN bus, noise, or gross collisions of data on that vital bus. (only scans work here)

IF all fuses are good we scan it .
as always , we check battery voltage first.
with out fail, and listening to the starter motor.
if the starter is dead or weak , we want a strong battery to make all this complex electronics in the car work.
A $10 voltmeter and you know know, battery is above 12.6vdc rested, key on, engine off.
start engine and it goes above, 13.3vdc.
That same tool i can test all fuse. ask.
end comments.

FSM page:
the first page states (QUOTE)
The most reliable, efficient, and accurate means to diagnose the front wiper motor or the electronic controls and communication related to front wiper motor operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
NOTE The front wiper and washer switches are integral to the right multi-function switch. The right multi-function switch is hard wired to the left multi-function switch/Steering Control Module (SCM), which communicates with the ElectroMechanical Instrument Cluster (EMIC)/Cab Compartment Node (CCN) over the Local Interface Network (LIN) data bus.
Before performing any of the following tests, determine whether the other functions of the right and left multi-function switch/SCM are operational. If only the right multi-function switch functions are inoperative, test and repair the right multi-function switch or the jumper harness between the right and left multi-function switches before attempting to repair the Front Wiper and Washer System. If both the right and left multi-function switch/SCM functions are ineffective, diagnose and repair that problem before attempting to repair the Front Wiper and Washer System. end quotes.


what's MORE?
what is missing is a block diagram, here ill make one so we can all learn....


Binary switch stalk. via 7 pin connector.
to:
SCM module (steering control module)
to: (i guess the SCM is the Bank switch brain)
the LIN>CAN network, (the SCM sends digital commands to)
to:

if you scan it and see errors from SCM to TIPM
that needs to be corrected first.
garbled bus data will make the TIPM go nuts.

That ground bad theory fails. because...
the motor uses Ground G112
if that wire fails you get vast numbers of failure from 10 majors. including oxygen sensor 1/2
so it;'s not G112 bad.
the motor has fast winding and low speed.
and a common ground. and a sense wire.

never skip scanning the car, or its all like a dog chasing his tail.
Battery not discharged, (you never said car runs)
fuses all good, (means tested)
scanned and not DTC errors. (i bet yes errors)
there 7 pages for the whole can/lin bus.

but this one is switch banks.
one tricky aspect of this, is the cluster
I think translates this wiper data commands from the LIN bus and then rebroadcasts to to the CAN-BUS. that he TIPM uses.that means.
so error are both buses are important.
this is the LIN-bus, the cluster retransmites the commands do the CAN-BUS. so if cluster is dead
that kills those commands,... out.bound. see?
tricky, i told you.

old post day, so other can learn.
stuck on you mean but NOT KEY OFF right?
the fastback has rear wiper , ill pretend not that...
front wiper stuck on, (most times that is a bad wiper motor the gear box has a bad, SUSTAIN contact switch.
but here, on this car, no computers, no magic logic modules
its just a classic wiper and switch.
the motor has 1,2,3,5,6 wire pins. (not sure why they skipped 4)
1 is ground skip that.
key on , bat goes hot ,12v,
if the switch on the lower left is bad (shorted)
this is the SUSTAIN switch.
pin 3 wiper off is 0v.
if pin 3 is 12vdc wiper off(again key on)
then the switch lower left is shorted inside the gear box.
seen vast like this on man cars.
the main switch not seen here can fail too, but but that will cuase 12v to be on pin 2 or 3 failed, to find if main switch is bad one can only do continuty tests on that switch, because the secret
jumper seen below, when failing there, makes it seem like the main switch is bad but is not,
one can pull the connector and ohm out 3 to 6 , if 0 ohms its a bad gear box, (er, motor assembly) the red upside U below is the main switch in OFF, it jump 3 to 5. like this. and no power to it from main switch.


that is the long story on old corolla;s

I have the shop manual & wiring book from Ford for your car. If interested, let me know. $25 plus postage.

this is a big job, time consuming. Is it leaking coolant?

Removal and Installation
NOTE: If a heater core leak is suspected, the heater core must be leak tested before it is removed from the vehicle.

1. Drain the cooling system. For additional information, refer to Section 303-03.

1. Position the front seats fully rearward.

1. Depower the supplemental restraint system. For additional information, refer to Section 501-20B.

1. Remove the wiper motor and pivot assembly. For additional information, refer to Section 501-16.

1. Remove the LH and RH windshield side garnish mouldings. For additional information, refer to Section 501-05.

1. Remove the LH and RH A-pillar lower trim panels. For additional information, refer to Section 501-05.

1. Disconnect the heater hoses from the heater core.

1. Lower the glove compartment.

1. Remove the 3 steering column opening panel lower bolts.
   • To install, tighten to 8 Nm (71 lb-in).

1. Remove the steering column opening panel cover.

1. Remove the steering column opening panel upper bolts.
   • To install, tighten to 8 Nm (71 lb-in).

1. Remove the steering column opening panel reinforcement.

1. Remove the 4 storage console pin-type retainers.

1. Remove the storage console.

1. Remove the rear seat floor duct adapter.

1. Remove the upper instrument panel finish panel.

1. Remove the LH lower instrument panel bolt.
   • To install, tighten to 12 Nm (9 lb-ft).

1. Remove the LH upper instrument panel bolt.
   • To install, tighten to 12 Nm (9 lb-ft).

1. Remove the 4 upper instrument panel bolts.

1. Remove the upper instrument panel cowl bolt.
   • To install, tighten to 5 Nm (44 lb-in).

1. Remove the 4 instrument panel center support brace bolts.
   • To install, tighten to 12 Nm (9 lb-ft).

1. Remove the LH instrument panel support bracket bolt.
   • To install, tighten to 12 Nm (9 lb-ft).

1. Loosen the RH instrument panel bolts one half of the bolt length, but do not completely remove the bolts.
   • To install, tighten to 12 Nm (9 lb-ft).

1. Working through the glove compartment opening, remove the RH instrument panel support bracket bolt.

1. Position the LH side of the instrument panel slightly away from the dash panel.

1. Remove the heater core and evaporator core housing support brace nut.

1. Remove the heater core and evaporator core housing support brace bolt.

1. Remove the heater core and evaporator core housing support brace.

1. Remove the 4 floor duct screws.

1. Remove the floor duct.

1. Remove the 7 heater core cover screws.

1. Detach the wire harness from the heater core cover.

1. Remove the heater core cover.

1. Remove the heater core.

1. To install, reverse the removal procedure.

1. Fill the engine cooling system. For additional information, refer to Section 303-03.

The pin configuration for the weldex camera is as follows: (when looking at the camera plug) : upper left pin=12v+ , lower left pin=audio out , upper right pin=video out , lower right pin=ground(also common for the audio & video out.

Wiper Motor: Service and Repair
Removal
REMOVAL
The front wiper motor comes as a unit with a wiper pivot on each end and mounts to a shaft that holds these two inner pivots.
1. Disconnect and isolate the battery negative cable.
2. Remove the wiper arms.
3. Disconnect the washer hose at the in-line connector located near the air cleaner housing.
4. Lift the cowl grille and disconnect the washer hose grommet from the hole in the wiper module. Pull the washer hose and the grommet
completely through the wiper module tub hole.
5. Remove the cowl grille.
CAUTION: Be careful not to scratch the cowl grille on the corner of the hood.
6. Remove the four brace nuts holding the wiper tub to the lower windshield fence.
7. Remove the four bolts underneath the wiper tub inner brace holding the tub to the bulkhead.
8. Remove all four inner support brace mounting nuts and pull the inner braces just free of the mounting studs.
NOTE: The wiper tub will drop down slightly.
9. Disconnect the driver and passenger side wiper link ends at the inner pivots.
10. Remove the two left wiper motor assembly mounting nuts.
11. Remove the two right wiper motor assembly mounting nuts.
12. Partially lift out the wiper motor assembly out of the wiper tub.
13. Disconnect the wiper motor electrical connector.
14. Remove the wiper motor assembly the rest of the way from the wiper tub and remove from vehicle.
--------------------------------------------------------------------------------------------
Wiper Motor: Service and Repair
Installation
INSTALLATION
1. Install front wiper motor assembly onto wiper tub.
2. Connect the electrical connector to the front wiper motor assembly.
3. Install the four mounting nuts. Tighten nuts to 9 Nm (80 in.lbs.).
4. Push the four inner support braces onto the studs and install the four nuts. Tighten the nuts to 9 Nm (80 in.lbs.).
5. Install the four bolts underneath the wiper tub inner braces that hold the wiper tub to the bulkhead. Tighten the bolts to 17 Nm (150 in.lbs.).
6. Install the four nuts holding the wiper tub to the lower windshield fence line. Tighten nuts to 7 Nm (65 in.lbs.).
7. Apply grease to drive link bushings.
NOTE: Make sure to use Mopar(R) approved grease.
8. Attach the driver and passenger side outer wiper linkage to the inner pivots on the front motor assembly and firmly snap into place.
CAUTION: Do not apply too much force to engage link bushing or damage can occur to the drive link bushing.
9. Position the cowl grille in place.
10. Install the washer hose and grommet into the wiper tub.
NOTE: Be sure to properly seat the washer hose grommet into the bottom of the wiper tub.
11. Connect the washer hose at the in-line connector located by the air cleaner housing.
12. Install the cowl grille.
CAUTION: Be careful not to scratch the cowl grille on the corner of the hood.
13. Connect the battery negative cable.
14. Verify that the wiper motor is in the Park position by cycling the wipers system. When done, remove keys from ignition.
15. Install the wiper arms.
16. Align the wiper arms and tighten nuts to 35 Nm (25 ft.lbs.).
17. Install the wiper arm nut caps.

You did everything else. You have voltage going to motor,so I would say that was it.

power is wht/or & blk/blu. to make the wiper move both left and right across window, it alternates positive and negative polarity.