2004 Saab 9-3 Linear, AutomaticFACTORY OEM SERVICE PROCEDURE

Main function

Fig 1: Identifying Communication Flow - Signal Detector
G03718634Courtesy of SAAB-SCANIA OF AMERICA, INC.

The main function of the signal detector is to detect when the closest tire PRESSURE SENSOR (754)Β  is transmitting and to send this information to tire Pressure Monitoring Module (753).

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.