Cellular Phone Antenna Circuit Malfunction
Table of contents
B2470 GMC Possible Causes
- Faulty Cellular Phone Antenna
- Cellular Phone Antenna harness is open or shorted
- Cellular Phone Antenna circuit poor electrical connection
- Faulty Telematics Communication Interface Control Module
How do I fix code B2470 GMC?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- B2470 02 Cellular Phone Antenna Circuit Malfunction Short to Ground
- B2470 04 Cellular Phone Antenna Circuit Malfunction Open Circuit
Cost of diagnosing the B2470 GMC code
The cost of diagnosing the B2470 GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2470 GMC Description
The cellular phone and navigation antenna is connected to the Telematics Communication Interface Control Module. This module supplies 5 V to the cellular phone and navigation antenna to power the internal amplifier. When the vehicle is equipped with the optional navigation radio, a navigation antenna signal splitter is installed to distribute the GPS signal to both the telematics communication interface control module and the navigation radio. The navigation radio supplies 5 V through the GPS antenna coaxial cable to the navigation antenna signal splitter to power the internal navigation radio signal amplifier.