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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 B3140, B3145, B3150, or B3155 >> Circuit/System Verification

Circuit/System Verification

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 - On / Vehicle - In Service Mode
  2. Verify the scan tool parameter:Driver Door Lock Switch = Inactive
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the specified state 
  3. Operate the component:S13D Door Lock Switch - Driver - Lock Switch & Unlock Switch

    Verify the scan tool parameter:Driver Door Lock Switch = Lock & Unlock

    • If not the specified state 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If the specified state 
  4. Verify the scan tool parameter:Passenger Door Lock Switch = Inactive
    • If not the specified state 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If the specified state 
  5. Operate the component:S13P Door Lock Switch - Passenger - Lock Switch & Unlock Switch

    Verify the scan tool parameter:Passenger Door Lock Switch = Lock & Unlock

    • If not the specified state 

      Refer to: Circuit/System Testing - Test 2

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