System Overview: Signals

2011 Volvo C30 R-Design, AutomaticSECTION Signals

The table below summarizes the input signals to and output signals from the traffic message channel module (TMC). The signal types are divided into directly connected signals and MOST communication. The illustration below displays the same information with the Volvo component designations.

Input signals Output signals
Directly connected:  Directly connected: 
  • Antenna amplifier (16/16)
  • The AM/FM tuner module (AFM) (16/94) (applies to vehicles with structure week up to and including 200445)
  • The Integrated Audio Module (IAM) (16/1) (applies to vehicles with structure week from and including 200446)
Via MOST communication:  Via MOST communication: 
  • Infotainment control module (ICM) (16/1)
  • Multimedia module (MMM) (16/108).
  • Infotainment control module (ICM) (16/1)
  • Multimedia module (MMM) (16/108).
Fig 1: Identifying Signals
GLL151735Courtesy of VOLVO CARS CORPORATION
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

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

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