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Home >> Buick >> 2017 >> Envision Preferred, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Object Detection System And Pedestrian Protection System >> Diagnostic Information and Procedures >> DTC B095D or B095E: Parking Assist Rear Sensor Left/Right Side Circuit >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF and all vehicle systems OFF, disconnect the harness at the appropriate B94 Side Object Sensor - Rear. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 Ω between the low reference circuit terminal 3 and ground.
    • If 10 Ω or greater 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
    2. Test for less than 2 Ω in the low reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω replace the K182 Parking Assist Control Module.
    • If less than 10 Ω 
  3. Ignition ON.
  4. Test for greater than 9.7 V between the 12 V reference circuit terminal 1 and ground.
    • If less than 9.7 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.
    2. Test for infinite resistance between the 12 V reference 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 9 V reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K182 Parking Assist Control Module.
    • If greater than 9.7 V 
  5. Test for 10 - 12.0 V between the signal circuit terminal 2 and ground.
    • If less than 10 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist 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 K182 Parking Assist Control Module.
    • If greater than 12 V 
    1. Ignition OFF, disconnect the X2 harness connector at the K182 Parking Assist 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 K182 Parking Assist Control Module.
    • If between 10 - 12.0 V 
  6. Test or replace the B94 Side Object Sensor - Rear.
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