It shouldn't be a big deal. It's a clip connector, on later models it clips right at the sensor, I don't know about you car. Let me try to find a picture of one...

 

AUTOMATIC TRANSAXLE PULSE GENERATOR DIAGNOSTIC TROUBLE CODES P0717 And P0722

This TSB supersedes TSB 01-40-006-1 to update the repair procedure.
DESCRIPTION:

An improperly functioning pulse generator on a 1996-2000 Elantra, 1997-2001 Tiburon or 1996-2004 Accent may result in the following conditions:
NOTE
These conditions may be intermittent and difficult to duplicate:

*
Diagnostic Trouble Codes:
o
P0717 - No pulse generator-A signal

P0722 - No pulse generator-B signal

P1624 - MIL-On request from TCM
*
Third-gear "Fail-Safe" condition and/or "Check Engine" light on
*
Harsh, delayed or erratic 1-2 upshift
*
Harsh or erratic 2-1 downshift during light acceleration
*
Vehicle "bucking" and/or hesitation

REPAIR PROCEDURE:

1.
Follow the procedure shown below according to vehicle and production date:
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2.
Check for DTC in both the "Engine" and "Automatic Transaxle" menus. If you have the following DTC, perform the repair procedure:
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3.
Clean both ends of the pulse generator connectors and the connectors to the TCM with aerosol electrical contact cleaner such as:
*
NAPA Electronic Cleaner, P/N 765-1843 or

MOPAR MP-50 Electrical Contact Cleaner, P/N 04549626 or equivalent
4.
Reconnect the pulse generator connector. For 1996-2000 MY Elantra vehicles only, remove the connector from the transaxle bracket. Leave the connector loose on the transaxle case to prevent any tension on the harness.
[Click for zoom window]
5.
Test drive the vehicle for at least two key-on to key-off driving cycles (including 1-2-3-4 upshifts and 4-3-2-1 downshifts):
*
If P0722 recurs, go to Step 6.

If P0717 recurs, go to Step 7.
6.
For 1996-2000 MY Elantra vehicles or 1996-2000 MY Accent vehicles, replace the reed switch on the speedometer. For 1997-2001 MY Tiburon vehicles, replace the vehicle speed sensor on the transaxle. Test drive the vehicle for at least two key-on to key-off driving cycles (including 1-2- 3-4 upshifts and 4-3-2-1 downshifts):
*
If P0717 or P0722 recur, go to Step 7.
[Click for zoom window]
7.
Replace the TCM. Test drive the vehicle for at least two key-on to key-off driving cycles (including 1-2-3-4 upshifts and 4-3-2-1 downshifts):
*
If P0717 or P0722 recur, go to Step 8.
8.
Replace the wiring harness between the TCM and pulse generators:
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PARTS INFORMATION:
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WARRANTY INFORMATION:
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By reading that it sounds to me that it must disconnect at the PGB area. See #8. If I get to #8 then I would replace the wires. I can not get this off unless I remove the wires and remove the PGA part. Sorry that I am having such troubles. It must slide or something that I have not tried. Any more help would be great. I go back and keep pulling on it to get it apart. It must be simple and I am not seeing how to do it.
Thanks,
Got any pictures to help?

 

It's easier than it sounds. Look at the pictures in my previous post, disconnect the connector, and remove the sensor. The replacement sensor should be identical.

 

I got the part from the dealer. Cost about $80. It is a three part unit. PGA wire connector wire PGB. Like a Y shape. So I do need to jack up the car to get the PGA off. I will try to do it tomorrow. I just hope it makes the car better!

 

Alright I replaced the PGB, connector and PGA units. The car runs great except..... I check engine light comes back on after a mile or so. In the above information in #6 it says to change the reed switch on the speedometer. Is this someting I can do? If so how?
Before I get into this could I be missing something on the PGA that I changed?
Thanks for your help.
WMM

 

Did you erase the codes and reset the system? You do that by removing the battery cable for 15 minutes.

 

I just want to thank you for all of your help. Two days of driving the car and no troubles. I could not of gotten it done without your help.
Thanks so much,
WMM

 

Glad it worked out for you.

 

How hard is it to change the reed switch on the speedometer? I have a 2001 accent with the same issue as above. I changed the pga/pgb and had my mechanic reset the OBD. There is no MIL but I still get the p0722 code. The directions above state that the next step would be replacing the reed switch on the speedo. How do you do that?