2017 R.H.D

Towbar wiring

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Op. No.: 36423 36401

The trailer module manages the electrical connection between the vehicle and trailer regarding:

  • Direction indicators

  • Brake lights

  • Position lights

  • Back up light

  • Fog lights, rear (Does not apply to 4/7-pin)

  • +12 V voltage


Part. No.Description
3141485913-pinInstallation Instruction
+ Trailer module
Part. No.
31407107Installation Instruction
+ Application1
Part. No.Description

Facts and advantages

  • Especially designed for your Volvo

  • Compatible for trailers equipped with both LED lighting and bulbs

  • The trailer module stores any diagnostic trouble codes (DTCs)

  • Provides driver information in event of broken indicators and brake light on the trailer.

Technical data

Accessory weight:

4/7-pin + Trailer module:

approx. 1.0 kg

13-pin + Trailer module:

approx. 0.7 kg

Trailer Stability Assist (TSA)

TSA is activated automatically upon installation of the trailer module.

The purpose of TSA is to stabilize undamped self-oscillations, which can occur when driving with a trailer. TSA works together with the vehicle's DSTC (Dynamic Stability and Traction Control) system, and stabilization is achieved through braking on one or more of the vehicle's wheels and through reduction of engine torque.

  1. Ordered according to separate procedures and downloaded using VIDA.
Last updated: 4/28/2022