2010 Cadillac CTS Sedan AWD V6-3.6L Page 485

2010 Cadillac CTS Sedan AWD V6-3.6L Page 485

瀚慖f less than the specified value, replace the antenna coax

5. Test for infinite resistance between the antenna coax outer shield and ground.

瀚慖f less than the specified value, replace the antenna coax

6. Test for less than 5 Ohms at the cellular antenna coax center terminal from end to end.

瀚慖f greater than specified value, replace the cellular antenna coax cable.

7. Test for less than 5 Ohms at the cellular antenna coax outer shield from end to end.

瀚慖f greater than specified value, replace the cellular antenna coax cable.

8. Test for infinite resistance between the antenna coax center terminal and the outer shield.

瀚慖f less than specified value, replace the cellular antenna coax cable.

9. If coax cable tests normal, replace the cellular antenna.

10. Clear the DTCs and operate the vehicle within the conditions for running the DTC. Verify DTC B2470 does not set.

瀚慖f the DTC sets, replace the CIM.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Digital Radio, Mobile Telephone, and Vehicle Location Base Replacement (See: Accessories and Optional Equipment/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for CIM replacement, setup, and programming

B2476

DTC B2476 or B2482

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC B2476 04

- Cellular Phone Select Service Switch Open Circuit

DTC B2476 59

- Cellular Phone Select Service Switch Stuck Button

DTC B2482 00

- Cellular Phone Select Service Switch Range/Performance

Diagnostic Fault Information