Technical Service Bulletins

Hyundai no-start or funky shifts

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Hyundai no-start or funky shifts

An improperly adjusted or improperly operating inhibitor switch (range switch) may result in the following conditions on 2010-2013 Hyundai vehicles (Santa Fe, Tucson, Sonata, Elantra, Azera, Accent and Veloster Turbo):

-          Impossible engine start in Park or Neutral

-          MIL illuminated

-          P0705 range switch sensor circuit

-          P0707 range switch open circuit

-          P0706 range switch range/performance

-          P0708 range switch short circuit or multiple inputs

    1. Turn the ignition switch to the ON position or push the Start/Stop button two times.
    2. Using GDS, check for DTC in the “Automatic Transaxle” menu. Record the DTC and description, and then delete the DTC.
    3. Select the following parameters. Move the shift lever through all gears and monitor the sensors:

-          Vehicle and A/T menu

-          Current Data

-          Shift lever switch

    1. If the shift lever switch shows the correct shift lever position, the wiring currently has no open/short circuits. Go to Step 6. If this does not show the correct shift lever position, go to Step 5.
    2. Visually check the wiring harness between the PCM and inhibitor switch for a damaged wire or open/short to ground. Check for a damaged pin not fully inserted into the connector. If damage exists, repair or replace as needed and drive the vehicle to confirm the repair. If no damage or open/short is found, go to Step 6.
    3. Place the shift lever to the “N” position. Turn the ignition switch to the OFF position.
    4. remove the air duct and air cleaner in order to access the inhibitor switch.
    5. Also remove the battery, if needed, for access. Remember to record any preset radio stations.
    6. If the battery was removed, remove the two bolts at the air cleaner, remove the four bolts at the battery tray and remove the battery tray for improved access.
    7. Disconnect the inhibitor switch connector. Remove the shift cable mounting nut. Remove the nut and washer and remove the manual control lever.
    8. Remove the two mounting bolts and remove the inhibitor switch. Install a new inhibitor switch assembly to the transaxle and tighten the mounting bolts to 7-9 ft.-lbs.
    9. Install the manual control lever, washer and nut to the new inhibitor switch and tighten the nut to 13-18 ft.-lbs. CAUTION: Insert a 5mm bolt or screwdriver in the alignment hole before tightening the nut.
    10. Install the shift cable mounting nut and tighten to 6-9 ft.-lbs. Remove the bolt or screwdriver from the alignment hole.
    11. Re-install all removed parts in reverse order.
    12. Clear all DTCs and test drive the vehicle for two drive cycles. If the problem reoccurs, repair or replace the control wiring between the PCM and inhibitor switch. If the DTC occurs again, replace the PCM/TCM.


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