FixVault
Home › Buick › 2022 › Encore AWD › Repair and Diagnosis › External Pages › Different car › Section 41 (Driver Assistance Systems) › Diagnostic Information and Procedures › Side Blind Zone Alert System Malfunction › Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2022 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

Test 1

  1. Ignition OFF, disconnect the X1 connector at the S79D Front Side Door Window Control Switch - Driver, ignition ON.
  2. Verify the P43D Side Object Detection Indicator - Driver is not illuminated.
    • If the P43D Side Object Detection Indicator - Driver is illuminated 

      Repair the short to voltage on circuit 1760.

    • Go to next step: If the P43D Side Object Detection Indicator - Driver is not illuminated 
  3. Connect a 3 A fused jumper wire between control terminal 8 and B+.
  4. Verify the P43D Side Object Detection Indicator - Driver is illuminated.
    • If the P43D Side Object Detection Indicator - Driver is not illuminated 
    1. Test circuit 1550 for an open/high resistance.
      • If an open/high resistance is found, repair the fault on the circuit or ground connection.
      • Go to next step: If an open/high resistance is not found
    2. Test circuit 1760 for a short to ground.
      • If a short to ground is found, repair the fault on the circuit.
      • Go to next step: If a short to ground is not found
    3. Test circuit 1760 for an open/high resistance.
      • If an open/high resistance is found, repair the fault on the circuit.
      • Go to next step: If an open/high resistance is not found
    4. Replace the E17D Outside Rearview Mirror Glass - Driver.
    • Go to next step: If the P43D Side Object Detection Indicator - Driver is illuminated 
  5. Replace the S79P Front Side Door Window Switch - Passenger.

Test 2

  1. Ignition OFF, disconnect the X1 connector at the S79P Front Side Door Window Switch - Passenger, ignition ON.
  2. Verify the P43P Side Object Detection Indicator - Passenger is not illuminated.
    • If the P43P Side Object Detection Indicator - Passenger is illuminated 

      Repair the short to voltage on circuit 1761.

    • Go to next step: If the P43P Side Object Detection Indicator - Passenger is not illuminated 
  3. Connect a 3 A fused jumper wire between control terminal 8 and B+.
  4. Verify the P43D Side Object Detection Indicator - Driver is illuminated.
    • If the P43P Side Object Detection Indicator - Passenger is not illuminated 
    1. Test circuit 2050 for an open/high resistance.
      • If an open/high resistance is found, repair the fault on the circuit or ground connection.
      • Go to next step: If an open/high resistance is not found
    2. Test circuit 1761 for a short to ground.
      • If a short to ground is found, repair the fault on the circuit.
      • Go to next step: If a short to ground is not found
    3. Test circuit 1761 for an open/high resistance.
      • If an open/high resistance is found, repair the fault on the circuit.
      • Go to next step: If an open/high resistance is not found
    4. Replace the E17P Outside Rearview Mirror Glass - Passenger.
    • Go to next step: If the P43P Side Object Detection Indicator - Passenger is illuminated 
  5. Replace the S79P Front Side Door Window Switch - Passenger.
About FixVault