Pontiac Repair: Sliding sunroof, 1997 pontiac sunfire, pontiac sunfire

Question
My sisters 1997 pontiac sunfire 2.4 sunroof will not close sprayed WD40 on tracts nothing blocking.Switch work fine opening but nothing when closing tried tapping motor while holding switch to close nothing.
Any help would be greatly appreciated
Stuck open
James

Answer
Hi
Heres the GM SI for sunroof diagnosis.

1
Did you perform the Power Sunroof System Check?
--
Go to Step 2


2
Turn the ignition switch to the RUN position.
Measure the voltage between the sunroof control module connector C2 terminal B and ground.
Leave the DMM connected after taking the measurement.
Does the voltage measure at the specified value?
VAlue = B+
yes = Go to Step 3
no = Go to Step 17

3
With the meter still connected, operate the sunroof switch.

Does the voltage measure at the specified value?
B+
yes =  Go to Step 4
no = Go to Step 17

4
Measure the voltage between the sunroof control module connector C2 terminal D and ground.
Operate the sunroof switch.
Is the voltage within the specified range?
Less than 300 mV
yes = Go to Step 5
no = Go to Step 18

5
Measure the voltage between the sunroof control module connector C2 terminal B and terminal D.
Operate the sunroof switch.
Does the voltage measure at the specified value?
B+
yes =  Go to Step 6
no = Go to Step 18

6
Measure the voltage between the sunroof switch connector terminal C and ground.

Is the voltage within the specified range?
4-6 V
yes = Go to Step 7
no = Go to Step 15

7
Measure the voltage between the sunroof switch connector terminal C and terminal F.

Is the voltage within the specified range?
4-6 V
yes = Go to Step 8
no = Go to Step 19

8
Measure the voltage between the sunroof switch connector terminal C and terminal F while operating the switch to the OPEN position.

Is the voltage within the specified range?
Less than 300 mV
yes = Go to Step 9
no = Go to Step 20

9
Measure the voltage between the sunroof switch connector terminal B and terminal F.

Is the voltage within the specified range?
4-6 V
yes = Go to Step 10
no = Go to Step 15

10
Measure the voltage between the sunroof switch connector terminal B and terminal F while operating the switch to the CLOSED position.

Is the voltage within the specified range?
Less than 300 mV
yes = Go to Step 11
no = Go to Step 20

11
Measure the voltage between the sunroof control module connector C2 terminal C and terminal D while operating the switch to the OPEN position.

Does the voltage measure at the specified value?
B+
yes =  Go to Step 12
no = Go to Step 13

12
Measure the voltage between the sunroof control module connector C2 terminal C and terminal D while operating the switch to the OPEN position.

Does the voltage measure at the specified value?
B+
yes = Go to Step 22
no = Go to Step 21

13
Measure the voltage between the sunroof control module connector C2 terminal A and terminal D while operating the switch to the CLOSED position.

Does the voltage measure at the specified value?
B+
yes = Go to Step 14
no = Go to Step 21

14
Measure the voltage between the sunroof control module connector C2 terminal A and terminal C while operating the switch to the CLOSED position.
Leave the DMM in place after making the measurement.
Does the voltage measure at the specified value?
B+
yes = Go to Step 22
no = Go to Step 21

15
Disconnect the sunroof switch.
With the DMM in place, measure the voltage again.
Is the voltage within the specified range?
4-6 V
yes = Go to Step 20
no = Go to Step 16

16
Leave the sunroof switch disconnected.
Disconnect the sunroof control module connector C1.
Measure the voltage between the control module terminal 6 and terminal 7.
Is the voltage within the specified range?
4-6 V
yes = Go to Step 24
no = Go to Step 21

17
Repair an open or a high resistance in CKT 141. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?
--
Go to Power Sunroof System Check
--

18
Repair an open or a high resistance in CKT 150. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?
--
Go to Power Sunroof System Check
--

19
Repair an open or a high resistance between the sunroof switch terminal F and the sunroof control module connector C1 terminal 5. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?
--
yes = Go to Power Sunroof System Check
no = Go to Step 21

20
Replace the sunroof switch. Refer to Sunroof Switch Replacement .

Did you complete the repair?
--
Go to Power Sunroof System Check
--

21
Replace the sunroof control module. Refer to Power Sunroof Module Replacement .

Did you complete the repair?
--
Go to Power Sunroof System Check
--

22
Repair an open or a high resistance between terminal A and terminal B of the sunroof motor assembly and the control module connector C1 terminal A and terminal C. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?
--
yes = Go to Power Sunroof System Check
no = Go to Step 23

23
Replace the power sunroof motor assembly. Refer to Power Sunroof Motor Replacement .

Did you complete the repair?
--
Go to Power Sunroof System Check
--

24
Repair an open or a high resistance in either of the following locations:

Between the sunroof control module connector C1 terminal 7 and the sunroof switch terminal B
Between the sunroof control module connector C1 terminal 6 and the sunroof switch terminal C
Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?
--
Go to Power Sunroof System Check
--

If you follow these steps and let me know what you come up with I'll send along the repair procedures for the part needed to repalce.

I Hope this helps.
PLease let me know if I can help anyother way.
Good Luck
Pawl