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Home >> Cadillac >> 2014 >> ELR >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Object Detection System And Pedestrian Protection System >> Diagnostic Information and Procedures >> DTC B010E: Pedestrian Friendly Alert Audio Output Circuit >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the P48 Pedestrian Alert Sound Speaker. Ignition ON,.
  2. Command Pedestrian Alert Sound When Driving Forward parameter On with a scan tool.
  3. Test for 5-7 V between each audio signal circuit terminal 1 and terminal 2 and ground.
    • If less than 5 V 
    1. Ignition OFF, disconnect the X1 harness connector at the K132 Pedestrian Alert Sound Control Module.
    2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance
    3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K132 Pedestrian Alert Sound Control Module.
    • If greater than 7 V 
    1. Ignition OFF, disconnect the X1 harness connector at the K132 Pedestrian Alert Sound Control Module. Ignition ON.
    2. Test for less than 1 V between the signal circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K132 Pedestrian Alert Sound Control Module.
    • If between 5-7 V 
  4. Test for 49-51 Hz AC between each signal circuit terminal 1 and terminal 2 and ground.
    • If not between 49-51 Hz AC 

      Replace the K132 Pedestrian Alert Sound Control Module.

    • If between 49-51 Hz AC 
  5. Test or replace the P48 Pedestrian Alert Sound Speaker.
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