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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B195B or B195C >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Operate the component: S13D Door Lock Switch - Driver - Lock Switch & Unlock Switch

    Verify the component works as specified: Door Lock Switch Indicator = On and Off

    • If not the specified state 

      Refer to Circuit/System Testing - Test 1

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

    Verify the component works as specified: Door Lock Switch Indicator = On and Off

    • If not the specified state 

      Refer to Circuit/System Testing - Test 2

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