How to access rear wiper motor

I know this question is old, but I am responding so others with the same problem can see. I wired the Rear Window Motor Park Signal wire and the Rear Window Motor Speed Signal wire together and it completely bypassed the rear wiper motor. Now the window goes up and down. This doesn't fix the rear wiper motor, but you will be able to have access to it now that the window is out of the way

I made and album to show.

http://imgur.com/a/q3vww

No. Remove Interior trim panel on the gate door and you will see the wiper motor. Need tool to slide under trim edge and pop fasteners that hold trim in place.

FIRST TURN OFF RADIO THEN DISCONNECT NEGATIVE BATTERY. MARK POSITIONS OF WIPER ARM ON THE LIFT GATE GLASS,THEN REMOVE WIPER ARM COVER AND NUT AT THE PUTSIDE OF THE LIFT GATE, THEN THE BEZEL, DONT SCRATCH PAINT ON THE LIFT GATE, REMOVE THE UPPER AND LOWER LIFTGATE INTERIOR TRIM PANELS, DISCONNECT THE ELECTRICAL CONNECTOR AT THE REAR WIPER MOTOR, THEN REMOVE THE TWO BOLTS SUPPORT WIPER MOTOR HOLD WIPER MOTOR IN PLACE WHILE REMOVING MOUNTING BOLTS THEN INSTALL NEW WIPER MOTOR THEN PUT EVERYTHING BACK VISA VERSA.

MARK THE POSITIONS OF THE WIPER ARM ON THE LIFT GATE GLASS,THEN REMOVE WIPER ARM COVER AND NUT AT THE OUT SIDE LIFT GATE, THEN THE BEZEL.BECAREFUL DONT DAMAGE PAINT.ON THE LIFT GATE.AND REMOVE THE UPPER AND LOWER LIFT GATE TRIM PANELS.DISCONNECT THE ELECTRICAL CONNECTOR AT THE REAR WIPER MOTOR, THEN REMOVE THE TWO MOUNTING BOLTS SUPPORT WIPER MOTOR WHILE REMOVING BOLTS.THEN INSTALL NEW WIPER MOTOR AND PUT EVERY THING BACK IN PLACE VISA VERSA.

Remove wiper arm, then wiper shaft nut, then washer and seal from wiper shaft. Remove lift gate trim panel, disconect electrical, remove motor attachment screws. reverse for instalation.

They are not related ...
The lift gate locking mechanism can be accessed by removing the interir trim pannel on the gate ... and locating the locking actuator and replacing it...
The same can be done for the power window motor ... remove the interior trim panel and replace the power window motor...

Hope I helped !!

most likely the wiper motor is bad the second wire sould be a ground if you set meter to ohms you sould be able to get a low resistance to any good ground on the vehicle if the hot wire is hot any time key is on the bcm is controling the ground to operate moter and you should have a steady continuity on the ground side with switch on the fast postion an it will read on and off in the intermitant postion if both wires test good motor is bad when you replace motor let it cycle and shut it off before installing the arm on it . To remove the motor the procedure is as follows:-- REMOVAL
Disconnect and isolate the battery negative cable.
Remove the rear wiper arm from the rear wiper motor output shaft.
From the outside of the liftgate, remove the rear wiper motor output shaft nut (Rear Wiper Module Remove/Install).
Pull the rear wiper motor output shaft bezel and rubber gasket away from the liftgate far enough to access and disconnect the washer supply hose from the barbed nipple on the back side of the bezel.
Remove the bezel and rubber gasket from the wiper motor output shaft.
Remove the trim panel from the inside of the lift-gate.
Disconnect the liftgate wire harness connector for the rear wiper module from the module connector receptacle.
Remove the two screws that secure the rear wiper module mounting bracket to the liftgate inner panel.
Remove the rear wiper module and mounting bracket from the liftgate as a unit. This will help. Thanks please keep updated.please please do rate the solution positively .thank you for using fixya

look closely/carefully for recessed screws. Most are usually pop on/ pop off types. Pull/ pry gently.

remove lift gate panel to gain access

Hello
The sensor your looking for is on the latch for the lift gate
you will need to remove the lift gate panel to access this it has a single wire switch
RD