Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Traffic Message Channel Module (TMC) (2006-2007): Design: Antenna
On the S40 a combined AM/FM (main and sub) and TMC-antenna is used. The antenna is integrated in the rear windshield.
There is a combined AM/FM main antenna integrated in the right door window. There is also an antenna for FMsub, which s a combined FMsub/TMC antenna integrated in the rear window.
On the C70 there are two antennas. A combined AM/FM rod antenna, which is integrated on the rear right-hand side. An FMsub antenna, which is a combined FMsub/TMC antenna and is behind the bumper.
The frequency range of the antenna is 87.5 - 108.0 MHz.
The signals from the antenna are amplified or adjusted by an antenna amplifier.
The antenna amplifier transmits TMC/FM sub-signals on to the Traffic message channel module (TMC). The FM sub-signals are then transmitted to the AM/FM tuner module (AFM) (applies to vehicles with structure week up to and including 200445) or Integrated Audio Module (IAM) (applies to vehicles with structure week from and including 200446).
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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