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.
2016 Hyundai Equus SignatureFACTORY OEM SERVICE PROCEDURE
Components and Components Location: Components
CONNECTOR PIN REFERENCE
| No. | Connector A | Connector B | Connector C |
|---|---|---|---|
| 1 | V_BAT load | C_CAN Low | SSB illumination ground |
| 2 | - | C_CAN High | - |
| 3 | Power ground 1 | - | SSB LED OFF |
| 4 | IGN1 | - | Interior antenna #2 power |
| 5 | IGN1 relay | Brake switch | Interior antenna #1 power |
| 6 | ACC | Immobilizer antenna power | - |
| 7 | IGN2 | - | Interior antenna #3 (hat shelf) |
| 8 | SSB switch 2 | Wheel speed | Interior antenna #4 (Trunk) |
| 9 | RDRV toggle button | Driver toggle button | Bumper antenna power |
| 10 | RF COM | - | Passenger side antenna power |
| 11 | - | - | Driver side antenna power |
| 12 | B_CAN High | P position/Clutch switch | SSB LED IGN |
| 13 | B_CAN Low | Start feedback | SSB illumination power |
| 14 | V_BAT CPU | Immobilizer antenna ground | - |
| 15 | - | - | Interior antenna #2 ground |
| 16 | Power ground 2 | SSB LED ACC | Interior antenna #1 ground |
| 17 | Starter relay | - | |
| 18 | IGN2 relay | Interior antenna #3 (hat shelf) power | |
| 19 | ACC relay | Interior antenna #3 (Trunk) power | |
| 20 | - | Bumper antenna ground | |
| 21 | - | Passenger side antenna ground | |
| 22 | RAST toggle button | Driver side antenna ground | |
| 23 | RPM | ||
| 24 | EMS COM | ||
| 25 | SSB switch 1 | ||
| 26 | Assistant toggle button |
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.