Kia Optima: SRSCM / Front Impact Sensor (FIS)

Kia Optima DL3 2019-2021 Service and Repair Manual / Restraint / SRSCM / Front Impact Sensor (FIS)

Description and operation
Description

The front impact sensor (FIS) is installed in the Front End Module (FEM). They are remote sensors that detect acceleration due to a collision at its mounting location. The primary purpose of the Front Impact Sensor (FIS) is to provide an indication of a collision. The Front Impact Sensor (FIS) sends acceleration data to the SRSCM.

Components and components location
Components Location

1. Front impact sensor (FIS)


Repair procedures
Removal
1.

Disconnect the negative battery terminal.

  

After disconnecting the cables, wait at least 3 minutes.

2.

Remove the front impact sensor (A) by loosening the bolt after disconnecting the connector (B).

Tightening torque :

8.8 - 10.8 N·m (0.9 - 1.0 kgf·m, 6.5 - 7.2 lb·ft)

[LH]

[RH]

Installation
  

Do not turn the ignition switch ON and do not connect the battery cable while replacing the front impact sensor.

1.

Install a new front impact sensor.

2.

Tighten the front impact sensor mounting bolt.

Tightening torque :

8.8 - 10.8 N.m (0.9 - 1.0 kgf.m, 6.5 - 7.2 lb-ft)

3.

Connect the front impact sensor connector.

4.

Install the radiator assembly.

5.

Reconnect the battery negative cable.

6.

After installing the front impact sensor, confirm proper system operation :

Turn the ignition switch ON; the SRS indicator light should turn on for about six seconds and then go off.

SRS Control Module (SRSCM)
Description and operation Description The primary purpose of the SRSCM (Supplemental Restraints System Control Module) is to discriminate between an event that warrants restraint syste ...

Side Impact Sensor (SIS)
Description and operation Description The Side Impact Sensor (SIS) system consists of two kinds of side impact sensor which are installed at each center of the front door module (left ...

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