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Home >> Chevrolet >> 2014 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B356A: Vehicle Direction Warning Switch >> Component Test

Component Test

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Static Test

  1. Ignition OFF, disconnect the harness connector at the S48A Multifunction Switch - Instrument Panel.
  2. Test for infinite resistance between the control circuit terminal 10 and ground circuit terminal 2.
    • If less than infinite resistance 

      Replace the S48A Multifunction Switch - Instrument Panel.

    • If infinite resistance 
  3. Test for less than 10 Ω between the control circuit terminal 10 and ground circuit terminal 2 while pressing the lane departure warning switch.
    • If 10 Ω or greater 

      Replace the S48A Multifunction Switch - Instrument Panel.

    • If less than 10 Ω 
  4. All OK.
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