Hyundai Kona: Dual Clutch Transmission Control System / Inhibitor Switch Troubleshooting

Hyundai Kona (OS) 2018-2026 Service Manual / DCT (Dual Clutch Transmission) System / Dual Clutch Transmission 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 abnomal	Check the inspection FLOW and replace the inhibitor switch
	Inhibitor switch "N" setting faulty	Adjust "N" setting using "N" setting jig (Refer to Dual Clutch Transmission Control System - "Inhibitor Switch")
	Shift cable separation faulty	Adjust shift cable separation (Refer to Dual Clutch Transmission Control 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 (TCU) terminal and replace the junction box or adjust the gap
	Inhibitor switch vehicle side circuit abnormal	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 ...

Inhibitor Switch Repair procedures

Inspection Inspection Flow Items to check 1. Inspect DTC code. 2. Inspect whether N setting matches. – ...

Other information:

Hyundai Kona (OS) 2018-2026 Owners Manual: Mechanical key
If the remote key does not operate normally, you can lock or unlock the door by using the mechanical key. To unfold the key, press the release button then the key will unfold automatically. To fold the key, fold the key manually while pressing the release button. NOTICE Do not fold the key without ...

Hyundai Kona (OS) 2018-2026 Owners Manual: Immobilizer system
The immobilizer system protects your vehicle from theft. If an improperly coded key (or other device) is used, the engine’s fuel system is disabled. When the ignition switch is placed in the ON position, the immobilizer system indicator should come on briefly, then go off. If the indicator start ...