Hyundai Sonata LF: DCT (Dual Clutch Transmission) System / Troubleshooting
| Troubleshooting |
| Trouble symptom | Probable cause | Remedy |
| Displayed the warning lamp "E" (Driving is only possible with 1/ R gear) | Not performed DCT learning | Perform the DCT manual learning procedure. |
| Impossible to driving with odd gear | Clutch actuator (Clutch motor 1 or position sensor 1 failure) | Replace the clutch actuator assembly. |
| Gear actuator (Shift motor 1 or position sensor 1 failure, select solenoid 1 or position sensor 1 failure) | Replace the gear actuator assembly. | |
| Input speed sensor 1 failure | Replace the input speed sensor. | |
| Faulty gears (2, 4, 6) | Replace the gear. | |
| Faulty clutch 1 | Replace the dual clutch assembly. | |
| Faulty engagement bearing 1 | Replace the Engagement Bearing Assembly | |
| Impossible to driving with even gear | Clutch actuator (Clutch motor 2 or position sensor 2 failure) | Replace the clutch actuator assembly. |
| Gear actuator (Shift motor 2 or position sensor 2 failure, select solenoid 2 or position sensor 2 failure) | Replace the gear actuator assembly. | |
| Input speed sensor 2 failure | Replace the input speed sensor. | |
| Faulty gears (1, 3, 5, 7, R) | Replace the gear. | |
| Faulty clutch 2 | Replace the dual clutch assembly. | |
| Faulty engagement bearing 1 | Replace the Engagement Bearing Assembly | |
| Impossible to driving | TCM failure | Replace the TCM. |
| Odd / even system simultaneous failure | Replace the dual clutch assembly or gear. | |
| Inhibitor switch / shift lever sensor simultaneous failure | Replace the inhibitor switch. | |
| Impossible to manual mode | Inhibitor switch failure | Replace the inhibitor switch. |
| Shift lever sensor failure | Replace the shift lever. | |
| Manual mod switch failure | Replace the manual mod switch housing. | |
| noise | Oil level (Low) | Refill the oil with transmission after inspecting the parts (Oil seal, Drain plug, Filler plug). |
| Oil (Wrong) | 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. | |
| Oil leak | Oil level (High) | Inspect the oil level. |
| Gasket (Damaged) | Replace the gasket. | |
| Oil seal (Worn or damaged) | Replace the oil seal. | |
| Hard shifting or impossible to shift | Oil (Wrong) | 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. |
Special Service Tools
Special Service Tools Tool(Number and Name)IllustrationUse09200-3N000Engine support fixture(Beam)Removal and installation of the transaxle.Use this beam (SST No...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: DCT Control Module (TCM) Schematic Diagrams
1. TCM Connector and Terminal Function 2. TCM Terminal Function Connector [A] PinDescriptionPinDescription1Clutch Actuator (Clutch Motor 1 (ODD)_Phase V)17-2Clutch actuator (Clutch Motor 2 (EVEN) Phase V)18Clutch Actuator (Clutch Motor 1 (ODD)_HALL 1)3Select Actuator (Shift Solenoid 2 (EVEN)_Ground)19Clutch Actuator (Clutch Motor 1 (ODD)_Supply)4Select Actuator (Shift Solenoid 1 (ODD) Push)20Select Actuator (Shift Solenoid 1 (ODD)_Sensor Supply)5Clutch Actuator (Clutch Motor 1 (ODD)_Phase U)21Select Actuator (Shift Solenoid 2 (EVEN)_Sensor Supply)6Clutch Actuator (Clutch Motor 2 (EVEN)_Phase U)22Select Actuator (Shift Solenoid 2 (EVEN)_Sensor Ouput)7Select Actuator (Shift Solenoid 1 (ODD)_Ground)23Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 2)8Select Actuator (Shift Solenoid 2 (EVEN)_ Pull)24Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 3)9Clutch Actuator (Clutch Motor1 (ODD)_Phase W)25Clutch Actuator (Clutch Motor 2 (EVEN)_Ground)10Clutch Actuator (Clutch Motor 2 (EVEN)_Phase W)26Select Actuator (Shift Solenoid 1 (ODD)_Sensor Output)11Select Actuator (Shift Solenoid 1 (ODD) Pull)27-12Select Actuator (Shift Solenoid 2 (EVEN) Push)28Clutch Actuator (Clutch Motor 2 (EVEN)_HALL 1)13Clutch Actuator (Clutch Motor 1 (ODD)_HALL 2)29Clutch Actuator (Clutch Motor 2 (EVEN)_Supply)14Clutch Actuator (Clutch Motor (ODD)_HALL 3)30Select Actuator (Select Solenoid 1 (ODD)_Sensor Ground)15Clutch Actuator (Clutch Motor 1 (ODD)_Ground)31Select Actuator (Select Solenoid 2 (EVEN)_Sensor Ground)16-32- Connector [B] PinDescriptionPinDescription1-35-2-36-3ON / START Input37-4Paddle Shift (Up) Switch signal38-5Inhibitor Switch "P" Input signal39-6Inhibitor Switch "R" Input signal40-7Inhibitor Switch "D" Input signal41Shift Actuator (Shift Motor 2 (EVEN) _HALL 2)8Sports mode "Down" shift42Shift Actuator (Shift Motor 2 (EVEN) _HALL 3)9Clutch Speed Sensor (EVEN) Ground43Inhibitor Switch "M" Input signal10-44CAN1 Communication Port1 High11-45CAN1 Communication Port1 Low12-46-13Shift Actuator (Shift Motor 1 (ODD) _HALL 2)47-14Shift Actuator (Shift Motor 1 (ODD) _HALL 3)48Flex ray High (BP)15-49Input Speed Supply 1 (ODD)16-50Input Speed Signal 1 (ODD)17Battery Power Low VBD 51-18Paddle Shift Down signal52-19Shift Lever Select Switch53-20Inhibitor Switch "N" Input signal54Shift Actuator (Shift Motor 2 (EVEN) _Supply)21Sports mode "Up" shift55Shift Actuator (Shift Motor 2 (EVEN) _HALL 1)22-56Shift Actuator (Shift Motor 2 (EVEN) _Sensor Ground)23Input Speed Supply 2 (EVEN)57Power Ground 1 for High Current Modules245V spare supply output58Power Ground 2 for High Current Modules25-59Shift Actuator (Shift Motor 2 (EVEN)_Phase W)26Shift Solenoid 1 Position Sensor Output60Shift Actuator (Shift Motor 1 (ODD)_Phase W)27Select Actuator (Shift Motor 1 (ODD)_HALL 1)61 Power Ground 3 for High Current Modules28Select Actuator (Shift Motor 1 (ODD)_Sensor Ground)62-29-63Shift Actuator (Shift Motor 2 (EVEN)_Phase V)30CAN2 Communication Port2 High64Shift Actuator (Shift Motor 1 (ODD)_Phase V)31CAN2 Communication Port2 Low65Motor Supply Voltage 1 from Direct Battery32-66Motor Supply Voltage 2 from Direct Battery33-67Shift Actuator (Shift Motor 2 (EVEN)_Phase U)34Flex ray bus, BM68Shift Actuator (Shift Motor 1 (ODD)_Phase U) 3...
Hyundai Sonata LF 2014-2019 Service Manual: Seat Heater Repair procedures
Inspection Front Seat Heater 1. Check for continuity and measure the resistance between terminals No 3 and No 6. Standard value Driver / Assists (cushion + back) : 1.58±10% 2. Operate the seat heater after connecting the connector, and then check the thermostat by measuring the temperature of seat surface...
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