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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Parking Assistance Systems) >> Diagnostic Information and Procedures >> DTC B0954-B0961, B096C, or B096D >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF and all vehicle systems OFF, disconnect the harness at the appropriate B306 Parking Assist Sensor. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 15 Ω between the low reference circuit terminal 3 and ground.
    • If 15 Ω or greater 
    1. Ignition OFF, disconnect the appropriate 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.
    • Go to next step: If less than 15 Ω 
  3. Ignition ON.
  4. Test for at least 6 V between the 12 V reference circuit terminal 1 and ground.
    • If less than 6 V 
    1. Ignition OFF, disconnect the appropriate 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.
      • Go to next step: If infinite resistance
    3. Test for less than 2 Ω in the 8 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.
    • Go to next step: If 6 V or greater 
  5. Test for 4.0 - 12.0 V between the signal circuit terminal 2 and ground.
    • If less than 4.0 V 
    1. Ignition OFF, disconnect the appropriate 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.
      • Go to next step: 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 12.0 V 
    1. Ignition OFF, disconnect the appropriate 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.
    • Go to next step: If between 4.0 - 12.0 V 
  6. Test or replace the B306 Parking Assist Sensor.
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