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Home >> Pontiac >> 2009 >> Torrent Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B1025, B1035, B1045, or B1055 >> Circuit/System Testing >> DTC Set By The Radio

DTC Set By The Radio

WARNING: This page is about a different car, the 2008 Pontiac Torrent and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X3 harness connector at the audio amplifier.
  2. Ignition ON, radio ON, test for 5.0-7.5 volts between the appropriate speaker output positive (+) circuit and ground.
    • If less than the specified range, test the output circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
    • If greater than the specified range, test the output circuit for a short to voltage. If the circuit tests normal, replace the radio.
  3. Ignition ON, radio ON, test for 5.0-7.5 volts between the appropriate speaker output negative (-) circuit and ground.
    • If less than the specified range, test the output circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the radio.
    • If greater than the specified range, test the output circuit for a short to voltage. If the circuit tests normal, replace the radio.
  4. If all circuits test normal, replace the audio amplifier.
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