KIA Niro: DCT (Dual Clutch Transmission) System - Troubleshooting

Trouble symptom:

 

Warning lamp ""E"" is illuminated(Driving is only possible with 1/R gear)

 

Probable cause †’ Remedy

 

DCT learning not performed †’ Perform the DCT manual learning procedure.

 

Trouble symptom:

 

Driving impossible at odd gear

 

Probable cause †’ Remedy

 

Clutch actuator (Clutch motor 1 or position sensor 1 is faulty) †’Replace the clutch actuator assembly.

Gear actuator (Shift motor 1, position sensor 1, select solenoid 1 or position sensor 1 is faulty) †’Replace the gear actuator assembly

Input speed sensor 1 is faulty †’Replace the input speed sensor.

Faulty gears (1, 3, 5) †’Replace the gear.

Faulty clutch 1 †’Replace the dual clutch
assembly.

Faulty clutch engagement bearing 1 †’ Replace the clutch engagement
bearing

Trouble symptom:

 

Driving impossible at even gear

 

Probable cause †’ Remedy

 

Clutch actuator (Clutch motor 2 or position sensor 2 is faulty)  †’Replace the clutch actuator assembly.

Gear actuator (Shift motor 2, position sensor 2, select solenoid 2 or position sensor 2 is faulty)  †’ Replace the gear actuator assembly.

Input speed sensor 2 is faulty  †’ Replace the input speed sensor.

Faulty gears (2, 4, 6, R)  †’Replace the gear.

Faulty clutch 2  †’Replace the dual clutch
assembly.

Faulty clutch engagement bearing 2 †’ Replace the clutch engagement
bearing

Trouble symptom:

 

Driving impossible

 

Probable cause †’ Remedy

 

Faulty TCM †’Replace the TCM.

 

Simultaneous failure of odd & even systems †’Replace the dual clutch assembly or gear.

 

Simultaneous failure of inhibitor switch & shift lever sensor †’Replace the inhibitor switch.

 

Trouble symptom:

 

Manual mode disabled

 

Probable cause †’ Remedy

 

Faulty inhibitor switch †’Replace the inhibitor switch.

 

Faulty shift lever sensor †’Replace the shift lever.

 

Trouble symptom:

 

Noise

 

Probable cause †’ Remedy

 

Oil level (Low) †’ Refill the transmission with oil after inspecting the parts (oil, seal, drain plug, and filler plug).

 

Oil (Wrong type)†’ Replace the oil.

 

Synchronizer ring (Worn or damaged) †’ Replace the synchronizer ring.

 

Gear (Worn or damaged) †’ Replace the gear.

 

Bearing (Worn or damaged) †’ Replace the bearing.

 

Trouble symptom:

 

Oil leakage

 

Probable cause †’ Remedy

 

Oil level (High) †’ Inspect the oil level.

 

Gasket (Damaged) †’ Replace the gasket.

 

Oil seal (Worn or damaged) †’ Replace the oil seal.

 

Trouble symptom:

 

Hard shifting or impossible to shift

 

Probable cause †’ Remedy

 

Oil (Wrong type) †’ Replace the oil.

 

Shift fork (Worn) †’ Replace the shift fork.

 

Synchronizer ring (Worn or damaged) †’ Replace the synchronizer ring.

 

Gear (Worn or damaged) †’ Replace the gear.

 

Hub sleeve (Worn or damaged) †’ Replace the hub sleeve.

 

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