Technical Service Bulletins

Hyundai Neutral Start Adjustment

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Hyundai Neutral Start Adjustment

This bulletin applies to 2009 and later Hyundai Genesis models equipped with a 3.8L V6 engine. An improperly adjusted neutral start switch (inhibitor switch) may result in a no-start condition in neutral or park, along with DTCs P0707 (transmission range sensor circuit low input) or P0708 (transmission range sensor circuit high input).

1. Move the shift lever to the “N” position.

2. Attach GDS and select vehicle, “A/T,” “Current data” and “Select Lever Switch.”

3. Insert a 5 mm bolt to align the select lever. If the bolt fits, go to Step 4 and check the neutral start switch connector for a loose/bent pin or open cirt in the harness. If OK, replace the neutral start switch and torque the manual sift bolt to 4-6 ft.-lbs. If the bolt does not fit, loosen the adjusting nut on the shift cable and install the 5 mm bolt. Go to Step 4.

4. Loosen the adjusting bolt to the neutral start switch.

5. Install the adjustment tool P/N AISIN 09452-3M400.

6. Rotate the neutral start switch to align the marks on the tool and the switch.

7. Tighten the adjusting bolt to 7-12 ft.-lbs.

8. Remove the adjusting tool.

9. Tighten the nut on the shift cable.

10. Attach GDS and select vehicle, “A/T,” “Current data” and “Select Lever Switch.”

11. Move the shift lever to P, R, N and D. Monitor “Select Lever Switch” and confirm that GDS reads correctly.

12. Test drive the vehicle for two key-on/key-off drive cycles. If DTC P0707 or P0708 do not re-occur, the repair is complete.

The 5 mm temporary bolt is installed at the lever top as shown.

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