LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2007 >> CTS Base, 2.8 T, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 337 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B2470 >> Component Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Testing

WARNING: This page is about a different car, the 2007 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The vehicle may be equipped with sectioned coax. Test each section and replace only the faulty section, not the entire length of coax.
  1. Disconnect the harness connector at the cellular antenna.
  2. Test for infinite resistance between the center conductor and the outer metal shield of the cellular antenna coax cable.
    • If meter does not read infinite, replace the cellular antenna coax cable.
  3. Test for less than 1 ohm of resistance at the cellular antenna coax connector from end to end.
    • If greater than specified value, replace the cellular antenna coax cable.
  4. If coax cable tests normal, test or replace the VCIM.