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.
2009 Hyundai Tucson GLS, AutomaticFACTORY OEM SERVICE PROCEDURE
Component Inspection
- Ignition "ON" & Engine "OFF".
- Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode.
- Using a scantool, Clear DTC.
- Using a "SCAN TOOL", Operate "LEARNING" Reset,
- Perform the "LEARNING"
- IG OFF ↔ IG ON (Repeat 2~3times), and then Monitor the "DTC"
- Is DTC Redisplayed?
YES
- Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and then Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was repaired and TCM (PCM) memory was not cleared. And Go to COMPONENT INSPECTION procedure.
METHOD OF LEARNING RESET
* IT IS NECESSARY TO LEARNING RESET, AFTER REPLACED TRANSMISSION
- ERASING CONDITION
- SELECT LEVER POSITION IS "P" OR "N"
- VEHICLE SPEED = 0 km/h
- IGNITION "ON", ENGINE "OFF"
- USING A SCAN TOOL, OPERATE "LEARNING" RESET
- IG "ON" ↔ IG "OFF" (2~3 TIMES), AFTER RESET
Factory Service Tools
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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.