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.
Components And Components Location: Components
2015 Kia Optima SXSECTION Components
WARNING: This page is about a different variant/trim than selected.
CONNECTOR PIN INFORMATION
| No. | Connector A (24 pin) | Connector B (20 pin) | Connector C (24 pin) | |
| 1 | Battery (+) | Head lamp low beam switch | Room lamp | |
| 2 | IGN 1 | Head lamp high beam switch | AV tail signal | |
| 3 | IGN 2 | Front fog switch | Buzzer (PAS) | |
| 4 | ACC | Safety power window Enable | Mirror unfolding relay | |
| 5 | Mist switch | K-Line | Rear left seat belt reminder indicator | |
| 6 | Tail lamp switch | Auto light power | - | |
| 7 | Key In switch | - | RPAS OFF indicator | |
| 8 | Key interlock switch | LIN (PAS) | Front washer relay | |
| 9 | Rear defogger switch | - | Head lamp low beam signal | |
| 10 | Crash unlock input | Auto light switch | Front wiper relay | |
| 11 | - | Front wiper intermitter volume switch | Mirror folding relay | |
| 12 | PAS option | Door unlock output | Foot lamp | |
| 13 | Sunroof open switch | - | ATM solenoid | |
| 14 | Auto folding switch | CAN high | Key solenoid | |
| 15 | Front washer switch | CAN low | Assistant seat belt indicator | |
| 16 | Front intermittent wiper | Auto light ground | Ground | |
| 17 | R position input | Auto light signal | Rear right seat belt reminder indicator | |
| 18 | Brake switch | - | Rear center seat belt reminder indicator | |
| 19 | Rear right seat belt reminder switch | PAS OFF indicator | Pocket lamp | |
| 20 | Rear center seat belt reminder switch | - | Security indicator | |
| 21 | Rear left seat belt reminder switch | Key hole illumination | ||
| 22 | RPAS, PAS switch | - | ||
| 23 | DRL option switch | - | ||
| 24 | Ground | - | ||
BCM INPUT TERMINAL VOLTAGE LIST
| Pin name | Description | Interface |
| V_B+ | ECU power supply | 12V (Battery voltage) |
| L_IGN1 | High side switch | ON=12V |
| L_IGN2 | High side switch | ON=12V |
| A_ACC | High side switch | ON=12V |
| L_MIST SW | High side switch | ON=12V |
| L_TAIL LAMP SW | High side switch | ON=GND |
| L_KEY IN SW | Low side switch | ON=GND |
| L_KEY INTER LOCK SW | Low side switch | ON=GND |
| L_REAR DEFOGGER SW | Low side switch | ON=GND |
| L_REAR FOG LAMP SW | Low side switch | ON=GND |
| L_PAS OPT | Low side switch | ON=GND |
| L_SUNROOFOPEN SW | Low side switch | ON=GND |
| L_AUTOFOLDING SW | Low side switch | GND = Folding, Open = Unfolding |
| L_FRONT WASHER SW | High side switch | ON=12V |
| L_FRONT INT WIPER SW | High side switch | ON=12V |
| L_INH'R' | High side switch | ON=12V |
| L_BRAKE SW | High side switch | ON=12V |
| L_RR SBR SW | Low side switch | ON=GND |
| L_RC SBR SW | Low side switch | ON=GND |
| L_RL SBR SW | Low side switch | ON=GND |
| L_RPAS OFF SW / L_PAS_SW | Low side switch | ON=GND |
| L_Dedicated_DRL OPT | Low side switch | ON=GND |
| L_HEAD LAMP LOW SW | Low side switch | ON=GND |
| L_HEAD LAMP HI SW | Low side switch | ON=GND |
| L_FRONT FOG LAMP SW | Low side switch | ON=GND |
| L_AUTO LIGHT SW | Low side switch | ON=GND |
| L_TMU Rx | Low side switch | ON=GND |
| A_FRONT WIPER INT VOLUME SW | Analog input | H=5V, L=0V |
| A_AUTO LIGHT SIGNAL | Analog input | H=5V, L=0V |
| P_CRASH UNLOCK INPUT | PWM input | H=12 L=0V |
| V_AutoLightPwr | Power output | 5V |
| GND (AUTO LIGHT) | Ground output | 0V |
| V_RPASPwr (reserved) | Power output | 8.5V |
| GND (RPAS) | Ground output | 0V |
| DIAGNOSIS (K-LINE) | Diagnostic Communication (K-line) | - |
| CAN_H | CAN high signal | - |
| CAN_L | CAN low signal | - |
| GND1 (BCM) | Power ground 1 (BCM) | - |
| GND2 (BCM) | Power ground 2 (BCM) | - |
BCM OUTPUT DESCRIPTION AND SPECIFICATION
| Pin Name | Description | Load | Power |
| O_SAFETY PWDW ENABLE | Safety power window enable output | Signal | |
| O_DRUnlockOut | Door unlock output (AV unlock) | Signal | |
| O_ROOM LAMP | Room lamp output | DC 12V 40W (Lamp) | B+ |
| O_AV TAIL SIGNAL | AV tail lamp signal output | Signal | |
| O_BUZZER | PAS/RPAS buzzer output | DC 12V (Buzzer) | IGN1 |
| O_HORN RELAY | Horn relay output | DC 12V 200mA | B+ |
| O_POCKET LAMP | Pocket lamp output | DC 12V 1.2W (LED) | B+ |
| O_RPAS OFF IND | RPAS OFF indicator output | DC 12V 1.2W (LED) | IGN1 |
| O_HEAD LAMP WASHER RELAY | Head lamp washer relay output | DC 12V 200mA | IGN2 |
| O_HEAD LAMP LOW SIGNAL | Head lamp low output stuts signal | Signal | |
| O_FRONT WIPER RELAY | Front wiper relay output | DC 12V 200mA | IGN2 |
| O_Mirror Folding RELAY | Auto folding mirror relay output | DC 12V 200mA | B+ |
| O_FOOT LAMP | Foot lamp output | DC 12V 10W (Lamp) | B+ |
| O_ATM SOLENOID | ATM shift lock solenoid output | DC 12V 500mA (Solenoid) | B+ |
| O_KEY SOLENOID | Key solenoid output | DC 12V 500mA (Solenoid) | B+ |
| O_AST SEAT BELT IND | Assistant seat belt indicator output | DC 12V 1.2W (LED) | IGN1 |
| O_RR SBR IND | Rear right seat belt reminder indicator output | DC 12V 1.2W (LED) | IGN1 |
| O_RC SBR IND | Rear center seat belt reminder indicator output | DC 12V 1.2W (LED) | IGN1 |
| O_RL SBR IND | Rear left seat belt reminder indicator output | DC 12V 1.2W (LED) | IGN1 |
| O_SECURITY IND | Security LED indicator output | DC 12V 1.2W (LED) | B+ |
| O_KEY HOLE ILLUMINATION LAMP | Key hole illumination lamp output | DC 12V 2W (Lamp) | B+ |
| O_Mirror_Unfolding RELAY | Auto folding mirror relay output | DC 12V 200mA | B+ |
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.