Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
A/T - Fail Safe Mode/Erratic/Hard Shifting/DTC's Set
1999 Hyundai Elantra Wagon L4-2.0LSECTION A/T - Fail Safe Mode/Erratic/Hard Shifting/DTC's Set
Group
40 - TRANSAXLE
Number
03-40-022
Date
12-2003
Model
ACCENT 1996-2004,
ELANTRA 1996-2000 AND
TIBURON 1997-2001
Subject
AUTOMATIC TRANSAXLE PULSE GENERATOR DIAGNOSTIC TROUBLE CODES P0717 & 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:
^ 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 dates shown.
2. Check for DTC in both the "Engine" and "Automatic Transaxle" menus. If you have the DTC, perform the repair procedure.
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.
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.
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.
PARTS INFORMATION
WARRANTY INFORMATION
40 - TRANSAXLE
Number
03-40-022
Date
12-2003
Model
ACCENT 1996-2004,
ELANTRA 1996-2000 AND
TIBURON 1997-2001
Subject
AUTOMATIC TRANSAXLE PULSE GENERATOR DIAGNOSTIC TROUBLE CODES P0717 & 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:
^ 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 dates shown.
2. Check for DTC in both the "Engine" and "Automatic Transaxle" menus. If you have the DTC, perform the repair procedure.
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.
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.
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.
PARTS INFORMATION
WARRANTY INFORMATION
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.