Hyundai Tucson: Wiring Precautions

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Restraint / General Information / Wiring Precautions

SRS wiring can be identified by special yellow outer covering Observe the instructions described in this section.

  • Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage in SRS wiring, replace the harness.

  • Be sure to install the harness wires so that they are not pinched, or interfere with other parts.

  • Make sure all SRS ground locations are clean, and grounds are securely fastened for optimum metal-to-metal contact. Poor grounding can cause intermittent problems that are difficult to diagnose.

Precautions for Electrical Inspections

  • When using electrical test equipment, insert the probe of the tester into the wire side of the connector.

    Do not insert the probe of the tester into the terminal side of the connector, and do not tamper with the connector.

  • Use a u-shaped probe. Do not insert the probe forcibly.
  • Use specified service connectors for troubleshooting.

Using improper tools could cause an error in inspection due to poor metal contact.

Spring-loaded Lock Connector

Some SRS system connectors have a spring-loaded lock.

Airbag Connector


To release the lock, pull the spring-loaded sleeve (A) and the slider (B), while holding the opposite half of the connector.

Pull the connector halves apart. Be sure to pull on the sleeve and not on the connector half.



Hold both connector halves and press firmly until the projection(C) of the sleeve-side connector clicks to lock.

Warning Lamp


     Warning Lamp Activation

    Warning Lamp Behavior after Ignition On As soon as the operating voltage is applied to the SRSCM ignition input, the SRSCM activates the warning lamp for a LED lamp check. The lamp shall turn on for 6 seconds during the initialization phase an


    Components Location Supplemental Restraint System Control Module (SRSC'M) Gravity Side Impact Sensor (G-SIS) _ C pillar Gravity Side Impact Sensor (G-SIS) _ B pillar Front Impact Sensor (FIS) RH Front Impact Sensor (FIS) LH Pres

     Supplemental Restraint System Control Module (SRSCM)

    Components Location Supplemental Restraint System Control Module (SRSCM) Supplemental Restraint System Control Module (SRSCM) Removal Disconnect the battery negative terminal. WARNING After disconnecting the cables


      Evaporative Emission Control System - Description

    Description The Evaporative Emission Control System prevents fuel vapor stored in fuel tank from vaporizing into the atmosphere. When the fuel evaporates in the fuel tank, the vapor passes through vent hoses or tubes to a canister filled with

     Fuel filler door

    Opening the fuel filler door Turn the engine off. Ensure Driver's door is unlocked. Press the rear center edge of the fuel filler door. Pull the fuel filler door (1) outward to access the fuel tank cap.  To remove the