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.
2010 Hyundai Genesis 3.8FACTORY OEM SERVICE PROCEDURE
Terminal of TCU
CONNECTOR TERMINAL REFERENCE
| Terminal | Signal | Name | Terminal | Signal | Name |
|---|---|---|---|---|---|
| 1 | +B | Battery voltage (+) | 28 | R | Neutral start switch "R" |
| 2 | GND | TCU Ground (-) | 29-40 | - | - |
| 3 | - | - | 41 | S4 | Shift solenoid S4 |
| 4 | IG | Ignition switch | 42 | SR | Shift solenoid SR |
| 5 | IG | Ignition switch | 43 | SL2 | Clutch pressure control solenoid No. 2 (+) |
| 6 | SPG | Output speed sensor (-) | 44 | NT | Input speed sensor (+) |
| 7 | TIP DOWN | Manual shift switch (Down) | 45 | SG1 | Output speed sensor ground |
| 8 | TIP UP | Manual shift switch (Up) | 46 | - | - |
| 9 | P | Neutral start switch "P" | 47 | N | Neutral start switch "N" |
| 10-12 | - | - | 48-52 | - | - |
| 13 | CANH | CAN communication (CAN-H) | 53 | OT | Oil temperature sensor (+) |
| 14 | CANL | CAN communication (CAN-L) | 54-60 | - | - |
| 15-16 | - | - | 61 | S1 | Shift solenoid S1 |
| 17 | SL1G | Clutch pressure control solenoid No. 1 (-) | 62 | S2 | Shift solenoid S2 |
| 18 | SL2G | Clutch pressure control solenoid No. 2 (-) | 63 | NTG | Input speed sensor (-) |
| 19 | SLTG | Line pressure control solenoid (-) | 64 | SG2 | Input speed sensor Ground |
| 20 | SLUG | Lock-up control solenoid (-) | 65-66 | - | - |
| 21 | GND | TCU Ground (-) | 67 | D | Neutral start switch "D" |
| 22 | SLT | Line pressure control solenoid (+) | 68-71 | - | - |
| 23 | SLU | Lock-up control solenoid (+) | 72 | OTG | Oil temperature sensor (-) |
| 24 | SL1 | Clutch pressure control solenoid No. 1 (+) | 73-78 | - | - |
| 25 | SP | Output speed sensor (+) | 79 | SFL | Shift lock solenoid |
| 26 | - | - | 80 | - | - |
| 27 | TIPM | Manual shift operation switch (M) | 81 | S3 | Shift solenoid S3 |
Factory Service Tools
Use the Manual With the Right Hardware
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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.