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.
TCM Terminal Input/Output Signal
2015 Kia Optima LimitedSECTION TCM Terminal Input/Output Signal
WARNING: This page is about a different variant/trim than selected.
TCM Terminal Input/Output Signal
| Pin | Description | Condition | Input/output value | |
|---|---|---|---|---|
| Type | Level | |||
| 3 | Line pressure control solenoid valve (LINE_VFS) | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
|
| 4 | Engine clutch control solenoid valve (EC_VFS) | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
|
| 5 | 35R clutch control solenoid valve (35R/C_VFS) | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
|
| 6 | Input speed sensor power | ON | Power | 0V/7.5V |
| OFF | ||||
| 7 | Output speed sensor power | ON | Power | 0V/7.5V |
| OFF | ||||
| 8 | Input speed sensor signal | High | Input | 0.7V/1.4V |
| Low | ||||
| 9 | Output speed sensor signal | High | Input | 0.7V/1.4V |
| Low | ||||
| 17 | Underdrive brake control solenoid valve (UD/B_VFS) | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V Power supply: V_SOL2 |
|
| 18 | 26 brake control solenoid valve (26/B_VFS) | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V Power supply: V_SOL2 |
|
| 19 | Shift lock solenoid | High | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 20 | Overdrive clutch control solenoid valve (OD/C_VFS) | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V Power supply: V_SOL1 |
|
| 22 | Rear lamp relay | R ON | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Other | ||||
| 25 | Inhibitor switch signal "S2" | High | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 26 | Inhibitor switch signal "S3" | High | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 27 | Inhibitor switch signal "S4" | High | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 32 | ON/OFF solenoid valve B (SS-B) | High | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 33 | ON/OFF solenoid valve A (SS-A) | High | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 34 | Ground (Power 1) | Ground | 0V | |
| 35 | Ground (Power 2) | Ground | 0V | |
| 36 | Sports mode down switch | Down ON | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Other | ||||
| 37 | Sports mode up switch | Up ON | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| 38 | Sports mode select switch | Sport mode | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Other | ||||
| 40 | Inhibitor switch signal "S1" | High | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| Low | ||||
| 47 | Solenoid supply power 1 | ON | Power | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| OFF | ||||
| 48 | Solenoid supply power 2 | ON | Power | 0V/Battery voltage level 9V < Battery voltage level < 16V |
| OFF | ||||
| 49 | TCM Input power 1 (For solenoid) |
Power | Battery voltage level 9V < Battery voltage level < 16V |
|
| 50 | TCM Input power 2 (For solenoid) |
Power | Battery voltage level 9V < Battery voltage level < 16V |
|
| 51 | PWM_command | Output | 0V/Battery voltage level 9V < Battery voltage level < 16V |
|
| 52 | Status_OPU | Input | 0V/Battery voltage level 9V < Battery voltage level < 16V |
|
| 53 | Oil temperature sensor (-) | Ground | 0V | |
| 54 | Oil temperature sensor (+) | ON | Input | 0V/3.3V |
| OFF | ||||
| 55 | CAN communication line (HIGH) | High | Command | |
| Low | ||||
| 56 | CAN communication line (Low) | High | Command | |
| Low | ||||
RENDER: 1.0x
NO RELATED
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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.