Hyundai Tucson: SRSCM

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Restraint / SRSCM

Components Location

  1. Supplemental Restraint System Control Module (SRSC'M)
  2. Gravity Side Impact Sensor (G-SIS) _ C pillar
  3. Gravity Side Impact Sensor (G-SIS) _ B pillar
  4. Front Impact Sensor (FIS) RH
  5. Front Impact Sensor (FIS) LH
  6. Pressure Side Impact Sensor (P-SIS)


The primary purpose of the SRSCM (Supplemental Restraints System Control Module) is to discriminate between an event that warrants restraint system deployment and an event that does not.

The SRSCM must decide whether to deploy the restraint system or not. After determining that pretensioners and/or airbag deployment is required, the SRSCM must supply sufficient power to the pretensioners and airbag igniters to initiate deployment.The SRSCM determines that an impact may require deployment of the pretensioners and airbags from data obtained from impact sensors and other components in conjunction with a safing function.

The SRSCM will not be ready to detect a crash or to activate the restraint system devices until the signals in the SRSCM circuitry is stabilized. It is possible that the SRSCM could activate the safety restraint devices in approximately 2 seconds but is guaranteed to fully function after prove-out is completed.

The SRSCM must perform a diagnostic routine and light a system readiness indicator when the ignition switch is in the ON position. The system must perform a continuous diagnostic routine and provide fault notice through a warning lamp indicator in the event of fault detection. A serial diagnostic communication interface will be used to facilitate servicing of the restraint control system.


 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

 SRSCM - Installation

Installation Install in the reverse of the removal. After installing the SRSCM, confirm proper system operation. WARNING SIf the Switch ON the ignition, the SRS indicator light should turn on for about six seconds and then off. Variant

 Pressure Side Impact Sensor (P-SIS)

Disconnect the batteiy negative terminal. WARNING After disconnecting the cables, wait at least 3 minutes. Remove the front door trim. (Refer to Body - "Front Door Trim") Disconnect the connector (A) from the pressure side im


 Accelerator Position Sensor (APS)

Description Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the tw

 Ignition Lock & Clutch Switch - Description

Description Clutch operation is detected through clutch switch signal. This signal enables ECM to cope with instant change of load condition. Clutch switch signal is used to detect engaged gear with vehicle speed and engine speed. Co