Rear access door ajar

Open the door all the way and look for the wiring harness going into the door, if you split that wire loom open you will see a bunch of broken wires match them by color code then splice them back together. It's a tight place to work so take your time. I hope this helps. Take Care.

Body Control Module (BCM)
Below the left side of the I/P to the left of the steering column.
Has three connectors.connector #1 52-Way F AMP Hybrid (BK) Body Control Module (BCM) C1 Pin
Wire Color
Circuit No.
Function
1
TN
860
Front Windshield Wiper Switch High Signal
2
WH
1459
Security System Sensor Supply Voltage
3
PK
1439
Ignition 1 Voltage
4
TN
28
Horn Relay Control
5
OG
300
Run Relay Control
6
TN
707
RAP Relay Coil Control
7
TN/WH
1969
Headlamp High Beam Relay Control
8
--
--
Not Used
9
PK/WH
1970
Headlamp Low Beam Relay Control
10
WH
1080
Park Lamp Relay Control
11
YE
749
Security Indicator Control
12
GY
91
Windshield Wiper Switch Signal 2
13
YE
196
Windshield Wiper Motor Park Switch Signal
14
TN
1835
Low Reference
15
L-GN/BK
1137
DRL Ambient Light Sensor Signal
16
YE
5066
Brake Pedal Position Sensor Signal
17
BK/WH
1651
Ground
18
--
--
Not Used
19
BK/WH
151
Ground
20
BK/WH
1651
Ground
21
YE
5
Crank Voltage
22
PK
1239
Ignition 1 Voltage
23
BN
1141
Accessory Voltage
24
--
--
Not Used
25
WH/BK
644
12-Volt Reference
26
PK/BK
109
Hood Ajar Switch Signal
27
OG
5688
10-Volt Reference
28
GY/BK
5689
Low Reference
29
BN/WH
230
Low Reference
30
PK
1444
I/P Dimming Control
31
OG/WH
812
I/P Dimming Voltage
32
--
--
Not Used
33
BN
5077
Low Reference
34
BN/WH
1571
Traction Control Switch Signal
35
GY/BK
1598
Courtesy Lamps Switch Off Signal
36
PK/BK
1597
Courtesy Lamps Switch On Signal
37
TN/WH
1455
Keyless Entry Signal
38
L-GN
1037
Class 2 Serial Data
39
L-GN
526
Stop Lamp Supply Voltage
40
L-GN
80
Key In Ignition Switch Signal
41
L-BU/WH
1314
Left Front Turn Signal Lamp Supply Voltage
42
D-BU/WH
1315
Right Front Turn Signal Lamp Supply Voltage
43
GY/BK
690
Courtesy Lamp High Control
44
OG
1732
Inadvertent Power Courtesy Lamp
45
--
--
Not Used
46
RD/WH
340
Battery Positive Voltage
47
OG
228
Windshield Washer Pump Control
48
GY
8
Instrument Panel Lamp Supply Voltage
49
D-GN/WH
1135
A/T Shift Lock Control Solenoid Control (w/o AQW)
GN/WH
1135
A/T Shift Lock Control Solenoid Control (AQW)
50
RD/WH
240
Battery Positive Voltage
51
RD/WH
2440
Battery Positive Voltage
52
RD/WH
1240
Battery Positive Voltage
Connector #2 52-Way F Receptacle 0.64, 2.8 (BK) Release Tool/Test Probe: 12094429/J-35616-4A
Body Control Module (BCM) C2 Pin
Wire Color
Circuit No.
Function
1
--
--
Not Used
2
OG/BK
780
Driver Door Lock Switch Lock Signal
3
D-GN
5512
Liftgate Open Switch Signal
4
D-BU
245
Passenger Door Lock Switch Unlock Signal
5
L-GN/BK
748
Right Rear Door Ajar Switch Signal
6
YE/BK
1181
Right Rear Door Open Switch Signal
7
L-BU/BK
747
Left Rear Door Ajar Switch Signal
8
L-GN
1177
Right Front Door Open Switch Signal
9
L-BU
1134
Park Brake Switch Signal
10
L-BU
2380
Rear Parking Assist Chime Signal (UD7)
11
OG/BK
781
Driver Door Lock Switch Unlock Signal
12-15
--
--
Not Used
16
WH
193
Rear Defog Relay Control
17
TN/WH
746
Right Front Door Ajar Switch Signal
18
D-BU/WH
1179
Left Rear Door Open Switch Signal
19-21
--
--
Not Used
22
L-GN
1123
Door Lock Key Switch Lock Signal
23
WH
5075
Current Sensor Signal
24
PU
1124
Door Lock Key Switch Unlock Signal
25
TN
126
Left Front Door Open Switch Signal
26
GY/BK
745
Left Front Door Ajar Switch Signal
27-29
--
--
Not Used
30
WH
17
Stop Lamp Supply Voltage
31
L-BU
244
Passenger Door Lock Switch Lock Signal
32-33
--
--
Not Used
34
PK/BK
1303
Liftgate Ajar Switch Signal (Early Production)
35
YE
2080
Low Reference
36
PK
2435
Low Reference
37
YE/BK
2079
Driver Heated Seat Cushion Temperature Sensor Signal
38
GY
2434
Passenger Heated Seat Cushion Temperature Sensor Signal
39
TN/WH
2430
Passenger Heated Seat Relay Control
40
PU
2477
Driver Heated Seat Relay Control
41
--
--
Not Used
42
L-GN
24
Backup Lamp Supply Voltage
43
YE
18
Left Rear Stop/Turn Lamp Supply Voltage
YE
18
Left Rear Stop/Turn Lamp Supply Voltage
44
GY
8
Instrument Panel Lamp Supply Voltage
45
L-GN
275
Park/Neutral Position Park Signal (E58 w/o AQW)
L-GN
275
Park/Neutral Position Park Signal (E59 w/o AQW)
L-GN
275
Park/Neutral Position Park Signal (AQW)
46
TN
694
Driver Door Lock Actuator Unlock Control
47
--
--
Not Used
48
D-GN
19
Right Rear Stop/Turn Lamp Supply Voltage
D-GN
19
Right Rear Stop/Turn Lamp Supply Voltage
49
RD/WH
440
Battery Positive Voltage
50
BK
550
Ground
51
TN
294
Door Lock Actuator Unlock Control
52
GY
295
Door Lock Actuator Lock Control

courtesy light switch , is door ajar switch an it's part of the door lock actuator . Light on coming on ? Not going off ? The ajar switch is a input to the GEM module , fords BCM - body control module . The GEM will energize a relay to turn on the lights .
The GEM will illuminate the interior lamps when any door is open or ajar. The interior lamps are; the dome lamp, the rear cargo lamp, the door courtesy lamp and the side rail lamps. The courtesy lamps will shut off when the doors are closed and the illuminated entry feature is not active or when the vehicle speed is greater than 5 mph (8 km/h). The interior lamps will not be reactivated until the vehicle speed is less than 3 mph (5 km/h) and a new door open warning lamp switch is received.
The GEM controls the interior lamps illuminated entry function by activating the interior lamp relay.
Mite be a good idea to have it check for DTC'S - diagnostic trouble codes .

B1322 Driver Door Ajar Circuit Short to Ground GEM GO to Pinpoint Test B . B1323 Door Ajar Lamp Circuit Failure GEM REFER to Section 413-01 . B1325 Door Ajar Lamp Circuit Short to Battery GEM REFER to Section 413-01 . B1330 Passenger Door Ajar Circuit Short to Ground GEM REFER to Section 417-02 . B1334 Decklid Ajar Rear Door Circuit Short to Ground GEM GO to Pinpoint Test C . B1338 Door Ajar RR Circuit Short to Ground

Unless you have electrical diagnostic skills , I suggest you take this to the dealer ! The lift gate can be opened by operating the switch on the instrument panel. Battery voltage is supplied to the liftgate actuator through the body control module (BCM). The BCM will pulse the lift gate actuator when a release input is received through the key fob, or the instrument panel switch.
The body control module (BCM) receives an input from the liftgate ajar assembly. The ajar assembly is normally open when the liftgate is fully closed. When the liftgate is opened, the ajar assembly contacts close providing a path to ground. The driver information center (DIC) illuminates the rear access open message when the gate is open. The instrument panel cluster (IPC) receives a serial data message from the BCM indicating the liftgate ajar status. If this message is displayed and the vehicle speed is greater than 8 km/h (5 mph), a chime will sound.
It could be ajar switch is bad .

There is no reprogramming for the door modules and sorry you dislike the dealer so much ! I work at a GM dealer ,have for over twenty years . No one knows your GM vehicle better . Your messing with something you have no clue about . The dealer is exactly the place you should be taking it to . Do you know the doors all have computers inside ? door modules , and can set DTC'S .Do you know what they are ? diagnostic trouble codes ! Do you know what serial data communications are ?
DTC B1562, B1567, B1572, or B1577
DTC B1582, B1583, B1592, B1593, B1612, B1613, B1622, or B1623
DTC B3142, B3147, B3152, or B3157
DTC B3172, B3177, B3182, B3187, B3192, B3197, B3282, B3287, or B3292
DTC B3377, B3382, B3387, B3392, B3397, B3452, B3457, B3462, B3467, B3472, B3477, B3482, B3517, or B3522
DTC B3527
DTC U1161-U1163 or U1170
The power door lock system consists of the following components:
• Driver door lock switch
• Passenger door lock switch
• Driver door switch assembly (DDSA)
• Driver door module (DDM)
• Passenger door module (PDM)
• Left rear door module (LRDM)
• Right rear door module (RRDM)
• Driver door lock actuator
• Passenger door lock actuator
• Left rear door lock actuator
• Right rear door lock actuator
• Driver door cylinder unlock switch
• Class 2 serial data circuit
• Power door serial data circuit
• DRVMDL Fuse (10 amp)
Driver Door Switch Assembly and Driver Door Module logic, Driver Door Module internal driver operation
• PASS MDL Fuse (10 amp)
Front Passenger Door Module logic and internal driver operation
• RRDR MDL Fuse (10 amp)
Left Rear Door Module and Right Rear Door Module logic and internal driver operation

For Doors not getting open with remote or key problem,there are help links provided below.Click the link below to go through its procedure and troubleshoot the problem:----
drivers side front door will not open from inside or outside?

http://technoanswers.blogspot.com/2012/01/ford-f-350-crew-cab-drivers-side-front.html

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Car door will not close?
http://howtobyme.blogspot.com/2011/11/car-door-will-not-close.html

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All power door locks not working ?
http://howtobyme.blogspot.com/2011/11/all-power-door-locks-not-working-on_14.html

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Repairing car Door lock Actuator?
http://howtobyme.blogspot.com/2011/11/repairing-car-door-lock-actuator.html
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How to Access car door panel?
http://howtobyme.blogspot.com/2011/11/how-to-access-car-door-panel.html

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Vehicle door panel components?

http://howtobyme.blogspot.com/2011/11/vehicle-door-panel-components.html

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Truck Door will not close?

http://schematicsdiagram.blogspot.com/2011/12/ford-truck-door-will-not-close.html

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Where is Cars Door control Module located?

http://schematicsdiagram.blogspot.com/2011/12/where-is-cars-door-control-module.html

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Power door locks not working?

http://schematicsdiagram.blogspot.com/2011/12/power-door-locks-not-working.html

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Door ajar light stays on?

http://technoanswers.blogspot.com/2012/01/door-ajar-light-stays-on.html

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Door locks not working?

http://technoanswers.blogspot.com/2012/01/door-locks-not-working-on-ford-explorer.html

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Front Door dis-assembly diagram?

http://repairhelpcenter.blogspot.in/2012/02/front-door-dis-assembly-diagram-for.html

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Rear Door dis-assembly diagram?

http://repairhelpcenter.blogspot.in/2012/02/rear-door-dis-assembly-diagram-for.html

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How to test Power door locks?

http://repairhelpcenter.blogspot.in/2012/02/how-to-test-power-door-locks.html

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Doors will not open with Remote?

http://schematicsdiagram.blogspot.in/2012/02/lexus-doors-will-not-open-with-remote.html

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How to replace Door Hatch ?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-hatch-on-acura-integra.html

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How to remove Doors?

http://repairhelpcenter.blogspot.com/2011/11/how-to-remove-doors-on-acura-integra.html

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How to Replace Doors?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-doors-on-audi-a4-and-vw.html

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Remote will not unlock Rear door?
http://schematicsdiagram.blogspot.com/2011/12/remote-will-not-unlock-rear-door-on-gmc.html

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Door locks or windows not working on car?
http://schematicsdiagram.blogspot.com/2011/07/door-locks-or-windows-not-working-on.html

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This will help.

Thanks.

There is a push switch or the door jam that is push in when the door is closed if its visible broken replace it. If there is nothing visibly wrong. From the outside you will have to remove the switch some can removed from the outside but most require removing interior trim pieces to access the back side check the wires for damage or loose connnection to the switch if the wiring appears good replace the switch( you can check if the switch is bad by placing the two wires together if that turns off the door ajar then its the switch if it doesn't then the problem is further up the wirring harness and can be a pain to find. Also if you are to cheap to replace the switch hard wiring the two switch wires together will permanently disable the door ajar warning for that door) if none of that fixes your problem your computer is screwing up and good luck

Jaguar 2000-06 - Locks & Lock Systems
Power Door Locks - Removal & Installation

Door Lock Switch
Door Lock Diagnosis & Testing

1. Visually inspect the following:
   Misaligned door(s), hood or luggage compartment lid Door latches Actuating rod Exterior door handle Interior door handle Door lock cylinder Cable Luggage compartment lid exterior release switch Fuse(s) Wiring harness Electrical connector Door lock actuator Remote transmitter batteries Vehicle battery Remote transmitter Door lock switch Front electronic module
2. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

Door Lock Motor
Coupe And Convertible

1. Turn ignition key to position II.
2. Motor door glass to fully raised position.
3. Turn ignition key to position O.
4. Disconnect the negative battery cable.
5. Remove door casing for access.
6. Remove door water shedder.
7. Position PVC secondary water shedder for access.
8. Slacken and remove the door glass rear runner lower securing screws.
9. Reposition door glass rear runner. Mark the position of the glass rear runner upper securing screw.
10. Slacken and remove the upper securing screw and move the runner away from the glass.
11. Disconnect door handle and lock barrel (driver door only) operating rods from latch links.
12. Slacken and remove the three latch assembly securing screws and position latch for access.
13. Remove latch motor harness multiplug from mounting bracket and disconnect multiplug.
14. Release operating cable from door handle. Move inner door handle to the locked position. Remove operating cable outer abutment from support bracket. Disconnect cable inner from door inner handle.
15. Remove lock motor assembly from door.
16. To install, reverse removal procedure.
    
    
    

    Fig. Removing door lock actuator
    

Sedan

1. Remove the door window glass
2. Detach the interior door handle.
3. Detach the actuator remote cable from the interior door handle.
4. Remove the interior door handle.
5. Detach the door window glass run.
6. Remove the exterior door handle retaining screws.
7. Remove the front door actuator retaining screws.
8. Reposition the front door actuator and exterior handle.
9. Remove the front door actuator and exterior handle.
10. Disconnect the front door actuator remote cable.
11. Detach the door lock cylinder connecting rod (1).
12. Detach the exterior door handle connecting rod (2).
13. Remove the front door actuator (3).
14. To install, reverse removal procedure.
    
    
    

    Fig. Removing door lock motor-Sedan
    

Hope this helps.

Who looked at it ? Dealer ? Did the place's you had look at the vehicle hook up a factory scan tool an view data to door module's an the BCM ? Door ajar is a fuction of the door modules an the BCM - body control module . One of these modules is seeing an input that makes it think door is open .
The door ajar indicator system consists of the following components:
• The driver door module (DDM)
• The passenger front door module (PDM)
• The body control module (BCM)
• The instrument panel cluster (IPC)
• The driver information center (DIC)
• The driver door ajar switch
• The passenger door ajar switch
• The left rear door ajar switch
• The right rear door ajar switch
• The liftgate ajar switch

Driver Door Ajar And Passenger Door Ajar
The DDM and PDM receive a discrete input from the respective door ajar switch to indicate the status of the door. The DDM or PDM then communicates this status to the IPC via class 2 message. The IPC, upon receipt of this class 2 message, will illuminate the appropriate door ajar message in the DIC and also send a class 2 message to the radio to activate the door ajar audible warning when the following conditions are met:
• The transmission is removed from PARK
• The vehicle speed is greater then 8.05 km/h (5 mph)
Left Rear Door Ajar And Right Rear Door Ajar
The BCM receives a discrete inputs from both the left and right rear door and liftgate ajar switches to indicate the status of the doors and liftgate. The BCM then communicates this status to the IPC via class 2 message. The IPC, upon receipt of this class 2 message, will illuminate the appropriate door ajar message in the DIC and also send a class 2 message to the radio to activate the door ajar audible warning when the following conditions are met:
• The transmission is removed from PARK
• The vehicle speed is greater then 8.05 km/h (5 mph)

Could have DTC'S - diagnostic trouble codes . Looking at data paramiters on the scan tool tool would show what switch is faulty or what part is .

Remove "Door Ajar" switch. Clean the switch and use a graphite type lubricant (I recommend "Dry-Slide") to lubricate the actuator on the switch. Reassemble the switch.

The switches are located inside the door panels, attached to the catch mechanism.

1) Remove interior door panel.

2) Using a T-27 Torx driver, remove the 3 bolts holding the catch in the door.
2a) The door ajar switch is the only part on the mechanism with the 2-wire harness.
2b) The switch is located at the rear catch for the sliding door.

3) Using a small flat screwdriver, gently lift the black tab on the catch mechanism and rotate the switch to remove it from the catch assembly.

4) Using a rag, clean the small round actuator and apply a small amount of graphite lubricant to the actuator and work the switch so it moves freely.

5) Reassemble the catch and the door.