My 2009 Hyundai Sonata quit accelerating while driving in town. The ESC and check engine light came on. I was able to turn the car off and back on and the ESC light went off and acceleration worked...
This may not be your problem but it does bring the vehicle in fail safe you may have a warranty
Date AUGUST, 2009
2001-ELANTRA, SANTA FE & XG
AUTOMATIC TRANSAXLE DIAGNOSTIC TROUBLE CODES P0715, P0716, P0717, P0720, P0721 & P0722
An improperly functioning input speed sensor or output speed sensor may result in the following conditions:
"Check Engine" light on
Harsh P-R or P-D engagement shock
Transaxle in 3rd gear fail-safe
Diagnostic trouble codes
1. Using a GDS, check for DTCs in both the "Engine" and "Automatic Transaxle" menus. Record the DTC and description.
2. From the GDS, select:
"Auto Transaxle" menu
"Input speed sensor" and "output speed sensor". Drive the vehicle and monitor the input and output speed sensors. If the sensors show:
Continuous output, the wiring currently has no open/shorts. Go to Step 6.
No output, go to Step 3
3. Check the wiring harness visually for an open circuit or short circuit to ground. Check for a pinched harness at the PCM/TCM attachment bolts.
4. Disconnect the connectors at the input and output speed sensor and PCM/TCM. Check for bent pins or pins not fully inserted into the connector.
5. If a harness open/short is found, repair or replace the ECM control harness between the PCM/TCM and transaxle and go to Step 8. If not, go to Step 6.
Aug 22, 2011 |
Hyundai Sonata Cars & Trucks