Hyundai Tucson: Automatic Transaxle Control System / Inhibitor Switch Troubleshooting
| Fault Diagnosis |
| Fault Diagnosis for Symptom |
| Major Symptom | Expected Cause | Items to Check and Measures |
| Shift lever not operating Gear not marked on cluster Shock occurs while shifting lever Warning lamp ON Engine OFF while vehicle is parked | Inhibitor switch circuit abnormal Inhibitor switch function abnormal | Check the inspection FLOW and replace the inhibitor switch |
| Inhibitor switch "N" setting faulty | Adjust "N" setting using "N" setting jig (refer to automatic transmission system - "inhibitor switch") | |
| Shift cable separation faulty | Adjust shift cable separation (refer to automatic transmission system - "inhibitor switch") | |
| Poor ground condition on reversing light circuit | Check the ground condition on reversing light and retighten it | |
| Inhibitor switch vehicle side circuit abnormal | Check the connection of junction box power terminal, fuse (TCU2) terminal and replace the junction box or adjust the gap | |
| Check inside the inhibitor switch connector for foreign substance and whether terminal is bent | ||
| Poor ground condition on inhibitor switch wire | Check the ground condition of wire and retighten it | |
| Poor inhibitor unit (disconnection/short-circuit) | Replace inhibitor switch (refer to inhibitor switch inspection) |
Inhibitor Switch Schematic Diagrams
Circuit Diagram
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Inhibitor Switch Repair procedures
Inspection
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Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Inspection flow
Items to ch ...
Other information:
Hyundai Tucson (LM) 2010-2015 Service Manual: Transaxle Control Module (TCM) Description and Operation
Description
Transaxle Control Module (TCM) is the automatic
transmission's brain. The module receives and processes signals from
various sensors and implements a wide range of transmission controls to
ensure optimal driving conditions for the driver.
TCM is programmed for optim ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Specifications
Specifications
DescriptionSpecificationsLimitGeneralTypeIn-line, DOHCxNumber of cylinders4xBore81.0 mm (3.1890 in.)xStroke97.0 mm (3.8189 in.)xTotal displacement1999 cc (121.99 cu.in.)xCompression ratio11.5±0.2 : 1xFiring order1-3-4-2xValve timingIntake valveOpenATDC 10° ~ BTDC 40°xCloseABDC ...