LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2007 >> STS Base, 4.6 A, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B1283-B1286 >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. With the TV function OFF, disconnect the 4 TV coaxial cables at the TV antenna amplifier.
  2. With the TV function ON wait 20 seconds, test for greater than 1 volt at each of the 4 TV coax cable center conductors.
    • If 1TV coaxial cable center connector is less than 1 volt, replace the suspect TV antenna coaxial cable.
    • If all 4 TV coaxial cable center connectors are less than 1 volt, see Component Testing (Coaxial Cables - TV Antenna Module to TV Antenna Amplifier).
  3. With the TV function OFF, reconnect the 4 TV coaxial cables to the TV antenna amplifier.
  4. Disconnect the 4 TV coaxial cables at the TV antenna.
  5. With the TV function ON wait 20 seconds, test for greater than 1 volt at each of the 4 TV coax cable center conductors.
    • If all 4 TV coaxial cable center connectors are less than 1 volt, see Component Testing (Coaxial Cables - TV Antenna Amplifier to TV Antenna).
  6. If all 4 TV coaxial cable center connectors are greater than 1 volt replace the rear glass (TV antenna).
    • If 1TV coaxial cable center connector is less than 1 volt, replace the suspect TV antenna coaxial cable.
scientia non olet · About LEMON Manuals