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Home >> Saab >> 2010 >> 9-5 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio System With Navigation >> Fault Diagnosis, Fault Codes >> DTC B1287 01: Amplifier Control Signal Circuit Short to Battery; DTC B1287 02: Amplifier Control Signal Circuit Short to Ground; DTC B1287 04: Amplifier Control Signal Circuit Open >> Circuit/System Testing >> RPO Code UQA

RPO Code UQA

  1. Ignition OFF, disconnect the X1 harness connector at the A11 Radio.
  2. Ignition ON, test for less than 1 V between the radio audio mute signal terminal 37 and ground.
  3. If greater than the specified value, test the circuit for a short to voltage. If the circuit tests normal, replace the T3 Audio Amplifier.
  4. Ignition OFF, test for greater than 20 Ω between the radio audio mute signal terminal 37 and ground.
  5. If less than the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the T3 Audio Amplifier.
  6. Ignition OFF, disconnect the X3 harness connector at the T3 Audio Amplifier.
  7. Test for less than 5 Ω between the signal circuit terminal 37 X1 at the A11 Radio harness connector and terminal 6 X3 at the T3 Audio Amplifier harness connector.
  8. If greater than specified range, test the circuit for an open circuit/high resistance.
  9. If all circuits test normal, replace the A11 Radio.
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