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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Power Door Lock System) >> Diagnostic Information and Procedures >> DTC B3125, B3130, or B3135 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector:
    • A23D Door Latch Assembly - Driver
    • A23P Door Latch Assembly - Passenger
    • A23LR Door Latch Assembly - Left Rear
    • A23RR Door Latch Assembly - Right Rear
  3. Connect a 25 A fused jumper wire between the test points:
    • A23D Door Latch Assembly - DriverControl terminal 7 & B+
    • A23P Door Latch Assembly - PassengerControl terminal 8 & B+
    • A23LR Door Latch Assembly - Left RearControl terminal 7 & B+
    • A23RR Door Latch Assembly - Right RearControl terminal 8 & B+
    4. CAUTION:

    Complete the testing as quickly as possible in order to prevent overheating and damaging the component.

  4. Momentarily connect a jumper wire between the test points:
    • A23D Door Latch Assembly - DriverControl terminal 8 & Ground
    • A23P Door Latch Assembly - PassengerControl terminal 9 & Ground
    • A23LR Door Latch Assembly - Left RearControl terminal 8 & Ground
    • A23RR Door Latch Assembly - Right RearControl terminal 9 & Ground
  5. Reverse the jumper wires 2 times between the terminals.

    Verify the component works as specified: A23 Door Latch Assembly = Lock & Unlock

    • If not the specified state 

      Replace the component:A23 Door Latch Assembly

    • Go to next step: If the specified state 
  6. All OK.
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