Cellular Phone Select Service Switch
Table of contents
B2476 CADILLAC Possible Causes
- Faulty Cellular Phone Select Service Switch
- Cellular Phone Select Service Switch harness is open or shorted
- Cellular Phone Select Service Switch circuit poor electrical connection
- Faulty Telematics Communication Interface Control Module
How do I fix code B2476 CADILLAC?
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
- B2476 04 Cellular Phone Select Service Switch Open
- B2476 59 Cellular Phone Select Service Switch Protection Time-out
Cost of diagnosing the B2476 CADILLAC code
The cost of diagnosing the B2476 CADILLAC 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)
B2476 CADILLAC Description
The OnStar® button assembly consists of 3 buttons: Call/Answer, OnStar® Call Center, and OnStar® Emergency. The Telematics Communication Interface Control Module supplies the OnStar® button assembly with 10 V via the 10 V reference circuit. Each of the buttons, when pressed, completes the circuit across a resistor or set of resistors allowing a specific voltage to be returned to the Telematics Communication Interface Control Module over the signal circuit. Depending upon the voltage range returned, the Telematics Communication Interface Control Module is able to identify which button has been pressed.