| Pin | Signal | Direction | Purpose | |-----|--------|-----------|---------| | 1 | +5V regulated (from display) | Vehicle → TomTom | Powers the TomTom module | | 2 | GND | – | Ground | | 3 | USB D+ | Bidirectional | For TomTom HOME PC connection (via glovebox USB) | | 4 | USB D- | Bidirectional | – | | 5 | Audio Out L | TomTom → Vehicle | Navigation voice prompts | | 6 | Audio Out R | TomTom → Vehicle | – | | 7 | Mute Signal | TomTom → Head unit | Lowers radio volume during prompts | | 8 | Cradle Detect | Vehicle → TomTom | Indicates module is docked |
| Pin (Quadlock B) | Signal | From | |-----------------|--------|------| | B4 | Tel Mute | TomTom mute pin 7 (via display) | | B5 | Aux L | Display pin 6 | | B6 | Aux R | Display pin 14 | | B7 | Aux GND | Display pin 7 or 15 combined | renault carminat tomtom wiring diagram
Introduction The Renault Carminat TomTom system, introduced in the late 2000s, represents a unique hybrid in automotive infotainment. Unlike fully integrated factory systems (like Renault’s own Carminat DVD), the Carminat TomTom combines a removable TomTom navigation unit with a permanent in-dash display and control interface. Understanding its wiring diagram is essential for troubleshooting, retrofitting, repairing damaged connectors, or integrating aftermarket equipment (e.g., backup cameras, amplifiers). | Pin | Signal | Direction | Purpose
Always obtain the exact wiring diagram for your vehicle’s year and trim (e.g., Megane III Phase 1 vs Phase 2 have different pin assignments). Use a multimeter before cutting wires, and when in doubt, consult Renault’s Visu or Sedre software for official schematics. Always obtain the exact wiring diagram for your
[TomTom Module] -- (USB) --> [Glovebox USB port] | (8-pin cradle) | |-- +5V, GND |-- Audio L/R ----> [Display Unit] ---> [Radio Quadlock B5/B6] |-- Mute ---------> [Display Unit] ---> [Radio Quadlock B4] | [Display Unit] <-- CAN Comfort (pins 4,5) --> [BCM / Steering Wheel] | |-- CAN Infotainment (pins 10,11) --> [Radio Unit] | +-- Reverse signal (pin 8) <--- [Reverse switch / BCM] The Renault Carminat TomTom wiring diagram is more than a list of pin colors; it is a map of a complex, bus-driven infotainment ecosystem. Whether you are repairing broken wires, adding a backup camera, or retrofitting the system, respect the CAN bus integrity and the unique mute/audio routing.
Multimeter, Renault CLIP diagnostic interface, 120-ohm terminating resistors (for CAN testing), and a pinout probe set. This article is for informational and educational purposes. Modifying vehicle wiring may affect safety systems or warranty. Proceed at your own risk.
| Pin | Wire Color (Typical) | Signal | Description | |-----|----------------------|--------|--------------| | 1 | Yellow | Battery +12V (permanent) | Display memory, TomTom cradle power | | 2 | Black | Ground | Chassis ground | | 3 | Orange | Ignition +12V (switched) | Turns display on/off with ignition | | 4 | Green | CAN Low (Comfort) | Steering wheel controls, vehicle speed | | 5 | White | CAN High (Comfort) | – | | 6 | Grey | Audio Left + | Aux audio from TomTom to head unit | | 7 | Grey/Brown | Audio Left - | – | | 8 | Blue | Reverse Gear Signal (+12V when reverse engaged) | Activates rear camera input (if equipped) | | 9 | Brown/Orange | Parking Brake Signal | Video input lockout (some markets) | | 10 | Purple | CAN Low (Infotainment) | Communication with radio unit | | 11 | Violet/Red | CAN High (Infotainment) | – | | 12 | Green/White | Microphone + | For hands-free (Bluetooth TomTom) | | 13 | Green/Brown | Microphone - | – | | 14 | Red | Audio Right + | Aux audio from TomTom | | 15 | Red/Brown | Audio Right - | – | | 16 | Shield | Drain wire | Ground for audio shielding | Pins 4-5 (Comfort CAN) carry speed pulse, reverse gear, and lighting information. Pins 10-11 (Infotainment CAN) handle audio source switching and display commands. 2.2 TomTom Cradle Connector (inside dashboard, often 8-pin Mini-ISO) This connects the removable TomTom unit to the vehicle.