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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Parking Assistance Systems) >> Diagnostic Information and Procedures >> DTC B0954-B0961, B096C, or B096D >> Circuit/System Testing

Circuit/System Testing

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  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the appropriate electrical connector:
    • B306A Parking Assist Sensor - Front Left Outer
    • B306B Parking Assist Sensor - Front Left Middle
    • B306C Parking Assist Sensor - Front Right Middle
    • B306D Parking Assist Sensor - Front Right Outer
    • B306E Parking Assist Sensor - Rear Left Outer
    • B306F Parking Assist Sensor - Rear Left Middle
    • B306G Parking Assist Sensor - Rear Right Middle
    • B306H Parking Assist Sensor - Rear Right Outer
    • B306K Parking Assist Sensor - Side Left Front
    • B306L Parking Assist Sensor - Side Right Front
  3. Test for less than 10 ohms between the test points:Low Reference circuit terminal 3 & Ground
    • If 10 ohms or greater 
    1. Disconnect the electrical connector:X2 & X3@K182 Parking Assist Control Module
    2. Test for less than 2 ohms between the test points:Low Reference circuit terminal 3@Component harness & The other end of the circuit@K182 Parking Assist Control Module
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K182 Parking Assist Control Module
    • Go to next step: If less than 10 ohms 
  4. Ignition - On / Vehicle - In Service Mode
  5. Test for 7 to 12 V between the test points: V Reference circuit terminal <p02> & Ground
    • If greater than 12 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 & X3@K182 Parking Assist Control Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points: V Reference circuit terminal <p02>@Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component:K182 Parking Assist Control Module
    • If less than 7 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 & X3@K182 Parking Assist Control Module
    3. Test for infinite resistance between the test points: V Reference circuit terminal <p02>@Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    4. Test for less than 2 ohms between the test points: V Reference circuit terminal <p02>@Component harness & The other end of the circuit@K182 Parking Assist Control Module
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K182 Parking Assist Control Module
    • Go to next step: If between 7 and 12 VIf less than 1 V 
  6. Test for 4 to 12 V between the test points:Signal circuit terminal 2 & Ground
    • If greater than 12 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 & X3@K182 Parking Assist Control Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points:Signal circuit terminal 2@Component harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component:K182 Parking Assist Control Module
    • If less than 7 V 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector:X2 & X3@K182 Parking Assist Control Module
    3. Test for infinite resistance between the test points:Signal circuit terminal 2@Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    4. Test for less than 2 ohms between the test points:Signal circuit terminal 2@Component harness & The other end of the circuit@K182 Parking Assist Control Module
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component:K182 Parking Assist Control Module
    • Go to next step: If between 7 and 12 VIf less than 1 V 
  7. Replace the component for which the DTC was set.
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