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Home >> Buick >> 2010 >> Lucerne Super >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Object Detection System >> Diagnostic Information and Procedures >> DTC B356A >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for infinite resistance between the signal circuit terminal 9 and the ground circuit terminal 8 with the switch in the open position.
    • If the specified value, replace the headlamp switch.
  3. Test for less than 2 ohms between the signal circuit terminal 9 and the ground circuit terminal 8 with the switch in the closed position.
    • If greater than the specified range, replace the headlamp switch.
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