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.
Cellular Telephone, Two-Way Radios, Notes
Cellular Phones and Portable Two-Way Radios with Separate External Antenna
- Radio-based remotes (e.g. for garage door openers) and wireless peripherals (e.g. keyboard or PC mouse) may only be used in vehicle when transmission output of device has a maximum of 100 mW.
- Please follow exactly the operating instructions and installation instructions of the manufacturer of mobile telephones, radio-based devices, and antennas.
- The devices' optimal range will only be reached with an exterior antenna.
- When telephone and two-way radio systems are installed properly there is no danger to safety system e.g. ABS or airbag. A prerequisite is however that there has been no intervention in their installations. Parallel wiring to such systems must be avoided.
- Excessively high electromagnetic fields can arise if mobile telephones and radio devices, with or without an incorrectly installed exterior antenna, are used.
In such a case, damage to health and interference with vehicle electronics cannot be ruled out.
Radios/Telephones with a Transmitted Output Above 10 Watts, Prerequisites
- The transmitting power at the antenna base may not exceed the applicable maximum values. See manufacturer's data
- You may not use antenna locations other than those shown in the table.
For transmitting power and antenna locations, refer to TRANSMITTED OUTPUT, POSSIBLE INSTALLATION LOCATIONS .
Performing Repairs
Before starting repair work, batteries must be disconnected! Refer to [For transmission(s) 0A4, 02E, 09G, 02Q] [For engine(s) BGP, BPY, BGQ, CBTA, CBUA, CCTA, CBFA] Removal and Installation
Use valid current wiring diagram. Refer to SYSTEM WIRING DIAGRAM.
Observe manufacturers operating and installation instructions for cellular telephones, two-way radios and antennas.
Secure wiring harnesses to cable ties. Wrap connectors with foam to avoid rattling noises.
NO RELATED
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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.