Hyundai Tucson Quiz
Body Electrical System

Smart Key

In this manual: Body Electrical System
General Information — 17Engine Mechanical System — 51Engine Electrical System — 26Emission Control System — 23Engine/Fuel Control System — 44Clutch System — 12MANUAL TRANSMISSION SYSTEM — 12AUTOMATIC TRANSMISSION SYSTEM — 42Four-Wheel Drive (4WD) System — 14Drive Shaft and Axle — 22Suspension System — 30Steering System — 16Restraint — 21Braking System — 47Body Work (Interior and Exterior) — 145Body Electrical System — 162Heating, Ventilation and Air Conditioning — 39
46steps
~276min
4/5difficulty
Done 0 of 46

Components and Component Location

COMPONENTS

No. CONNECTOR A CONNECTOR B C-CONNECTOR
1 BATT (+) ALL2 Relay Output Immobilizer Antenna Power
2 BATT (+) ALL1 Relay Output Wheel Speed Sensor Input
3 Internal Antenna 1_GND - SSB1 Switch Signal_Input
4 Bumper Antenna GND - -
5 Internal Antenna 2_GND ESCL Communication ESCL Unlock Switch
6 Auxiliary Door Antenna_GND EMS Communication Input Signal "P"
7 - B-CAN (High) Brake Switch Input
8 Driver Door Antenna Ground B-CAN (Low) IGN2 signal_input
9 - - IGN1 Signal_Input
10 SSB Illumination (-) - Starter Relay Output
11 Exterior Buzzer - Immobilizer Antenna GND
12 ESCL Power Supply ACC Relay Output RPM_Input
13 - - SSB2 Switch Signal_Input
14 Interior Antenna 1 Power MASS Driver Door Switch Signal_Input
15 Bumper Antenna Power KEY OUT Indicator Passenger Door Switch Signal Input
16 Interior Antenna 2 Power SSB LED (ACC) Start Signal Feedback_Input
17 Auxiliary Door Antenna_Power SSB LED (Ignition) Stop Lamp Fuse signal_input
18 - - ACC signal_input
19 Driver Door Antenna Power SSB LED (OFF) -
20 - SSB Illumination (-) MASS
21 ESCL Activation Immobilizer Indicator
22 ESCL GND -

Circuit Diagrams

Wiring Diagram

Repair Procedures

DEPOSIT

Smart Key
  1. Disconnect the negative (-) battery terminal.
  2. Remove the lower airbag panel. (Refer to Body - "Lower Instrument Panel")
  3. Disconnect the antenna cable (A) and connectors from the SMK unit (B).
  4. Remove the SMK unit (A) after loosening the mounting screws.
Room Antenna 1
  1. Disconnect the negative (-) battery terminal.
  2. Remove the front floor console tray. (Refer to Body group - Floor Console)
  3. Remove Interior Antenna 1 (B) by unscrewing the mounting nuts, and disconnect the connector (A).
  4. Disconnect the negative (-) battery terminal.
  5. Remove the rear floor carpet. (Refer to Body - "Carpets")
  6. Remove the room antenna 2 (B) by unscrewing the mounting nuts, and disconnect the connector (A).
  7. Disconnect the negative (-) battery terminal.
  8. Remove the rear bumper cover. (Refer to Body - Rear Bumper Cover)
  9. Remove the rear bumper antenna (A) by loosening the mounting screws.
  10. Disconnect the negative (-) battery terminal.
  11. Remove the guide from the front left wheel. (Refer to Body - "Front Fender")
  12. Remove the buzzer (A) after disconnecting the connector.
  13. Disconnect the negative (-) battery terminal.
  14. Remove the front door outside handle. (Refer to Body - Front Door Outside Handle)
  15. Disconnect the negative (-) battery terminal.
  16. Remove the rear door trim panel. (Refer to Body - "Rear Door Trim")
  17. Remove the rear panel of the rear door. (Refer to Body - "Rear Door Rear Panel")
  18. Remove the luggage compartment door opener switch (A) after loosening the mounting screws.
Interior Antenna 2, Rear Bumper Antenna, Buzzer, Outside Door Handle, Tailgate Open Switch

Inspection

Smart Key (See Smart Key System - Smart Key Diagnosis), Smart Key Switch (See Smart Key System - Smart Key Diagnosis), ANTENNA (See Smart Key System - Smart Key Diagnosis), Outside Door Handle
  1. Disconnect the front door outside handle connector (A).
  2. Check the continuity of the circuit between terminals No. 3 and No. 6.
    NO Description
    1 Door Antenna (-)
    2 Flashlight LED (-)
    3 Door Lock/Unlock Button
    4 Door Antenna (-)
    5 Flashlight LED (-)
    6 Door lock/unlock button switch ground

  3. Check the continuity of the circuit between the terminals of the luggage compartment door lock.
  4. If continuity is not specified, inspect the switch.
Trunk Opener Switch

REMEDY

Smart Key
  1. Install the smart key unit.
  2. Install the Smart Key unit mounting bolts and connect the connector.
  3. Install the glove box.
  4. Connect the negative (-) battery terminal and check the Smart Key system.
  5. Install the room antenna 1.
  6. Install the front console tray onto the floor.
  7. Connect the negative (-) battery terminal and check the Smart Key system.
  8. Install the room antenna 2.
  9. Install the rear mat.
  10. Connect the negative (-) battery terminal and check the Smart Key system.
  11. Install the rear bumper antenna.
  12. Install the rear bumper cover.
  13. Connect the negative (-) battery terminal and check the Smart Key system.
  14. Install the outside handle.
  15. Install the front door outside handle.
  16. Connect the negative (-) battery terminal and check the Smart Key system.
  17. Install the luggage compartment door opener switch.
  18. Install the rear door trim panel.
  19. Install the rear panel of the rear door.
  20. Connect the negative (-) battery terminal and check the Smart Key system.
Interior Antenna 1, Interior Antenna 2, Rear Bumper Antenna, Outside Door Handle, Tailgate Open Switch

Test yourself

A quick Hyundai Tucson quiz: every answer comes with an explanation and a link to the manual page.