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.
2000 Hyundai Tiburon L4-2.0LFACTORY OEM SERVICE PROCEDURE
Transmission Position Sensor/Switch: Testing and Inspection
When the ignition switch is in the ST position, the battery voltage is applied through the ignition switch and inhibitor switch to the ECM. If the selector lever is not in P or N position, the battery voltage will not reach the ECM.
Based on this signal, the ECM determines the automatic transaxle load and drives the idle speed control actuator to maintain optimum idle speed.
Circuit Diagram:
Harness Inspection (Step 1 - 2):
TROUBLESHOOTING HINTS
If the park/neutral position switch harness check is normal but the park/neutral position switch output is abnormal, check the control cable adjustment.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.