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Home >> Cadillac >> 2021 >> CT4 V, RWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B13DF >> Component Testing

Component Testing

  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector: A23LR Rear Side Door Latch - Left or A23RR Rear Side Door Latch - Right
  3. Connect a 25 A fused jumper wire between the test points: Control 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:
    • A23LR Rear Side Door Latch - Left: Control terminal 9 & Ground
    • A23RR Rear Side Door Latch - Right: Control terminal 7 & 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: A23LR Rear Side Door Latch - Left or A23RR Rear Side Door Latch - Right

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