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Home >> Cadillac >> 2016 >> ELR >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> 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. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the ground circuit.
      • If less than 2 Ω, replace the K132 Pedestrian Alert Sound Control Module.
    • If less than 10 Ω 
  3. Test for 3.5-5.5 V between signal circuit terminal 1 and terminal 2 and low reference.
    • If less than 3.5 V 
    1. Ignition OFF, disconnect the 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 5.5 V 
    1. Ignition OFF, disconnect the 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 3.5-5.5 V 
  4. Test or replace the P48 Pedestrian Alert Sound Speaker.


  1. Ignition OFF, disconnect the harness connector at the P48 Pedestrian Alert Sound Speaker. Ignition ON,
  2. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the ground circuit.
      • If less than 2 Ω, replace the K132 Pedestrian Alert Sound Control Module.
    • If less than 10 Ω 
  3. Test for 3.5-5.5 V between signal circuit terminal 1 and terminal 2 and low reference.
    • If less than 3.5 V 
    1. Ignition OFF, disconnect the 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 5.5 V 
    1. Ignition OFF, disconnect the 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 3.5-5.5 V 
  4. Test or replace the P48 Pedestrian Alert Sound Speaker.
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