A/T - Input/Output Speed Sensor DTC Diagnosis
NUMBER12-AT-007
GROUP
AUTOMATIC
TRANSMISSION
MODEL
Elantra Sedan Elantra Touring
DATE
FEBRUARY 2012
SUBJECT:
INPUT AND OUPUT SPEED SENSOR DIAGNOSIS-
DTC P0715, P0717, P0720, P0721 AND P0722
PART NUMBER CLARIFICATION
This TSB supersedes TSB 08-AT-014 to include Elantra Touring.
Description:
The 2007~10 Elantra Sedan and 2010~12 Elantra Touring use two individual sensors to detect the rotational speed of the transaxle's input and output shafts. The part descriptions as "Input" and "Output" are based upon their use in other Hyundai models; however, the sensor applications are reversed for the 2007~10 Elantra Sedan and 2009~12 Elantra Touring.
Applicable Vehicles:
2007~10 Elantra Sedan and 2009~12 Elantra Touring
DTC LIST:
Parts Information:
Warranty Information:
Service Procedure:
1. Attach a GDS and select vehicle, "A/T menu, "Current Data" and "Input speed sensor" and "Output speed sensor".
^ If the sensors show continuous and changing output, the wiring currently has no open/shorts during the test condition. Go to Step 4.
^ If the sensors do not show continuous and changing output, go to Step 2.
2. Check the wiring harness visually for an open circuit or short circuit to ground.
3. Disconnect the connectors at the input and output speed sensor and PCM. Check for bent pins or pins not fully inserted into the connector. Check the pin tension using the J-35616-C Pin Tension Tester.
^ If a harness open/short is found, repair or replace the ECM control harness.
^ If a harness open/short is not found, go to Step 4 or 5.
4. For the following DTC, replace the output speed sensor, P/N 42621-39200:
^ P0715, Input speed sensor malfunction
^ P0717, Input speed sensor - no signal
5. For the following DTC, replace the input speed sensor, P/N 42620-39200:
^ P0720, Output speed sensor malfunction
^ P0721, Output speed sensor - range
P0722, Output speed sensor - no signal
6. Attach a GDS and clear the codes. Drive the vehicle for two key-on to key-off cycles. If:
^ The DTC do not set again, return the vehicle to the customer.
^ The DTC set again, repair or replace the ECM control harness, if this was not done in Step 3.
7. If the DTC set again, replace the PGM.