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Home >> Buick >> 2012 >> Regal Turbo, Standard Trans >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Driver Information Center Switch Malfunction - DTC B3567 >> Component Testing

Component Testing

  1. Ignition OFF, disconnect the harness connectors at the S78 turn signal/multifunction switch.
  2. Test for 8.8-9.0k Ω between the signal terminal 12 and the low reference circuit terminal 6.
    • If not within the specified range, replace the S78 turn signal/multifunction switch.
  3. Test for 550-650 Ω between the signal terminal 12 and the low reference circuit terminal 6 while pressing the Up switch.
    • If not within the specified value, replace the S78 turn signal/multifunction switch.
  4. Test for 1.5-1.7k Ω between the signal terminal 12 and the low reference circuit terminal 6 while pressing the Down switch.
    • If not within the specified value, replace the S78 turn signal/multifunction switch.
  5. Test for 3.3-3.7k Ω between the signal terminal 12 and the low reference circuit terminal 6 while pressing the Set/Clr switch.
    • If not within the specified value, replace the S78 turn signal/multifunction switch.
  6. Test for less than 30 Ω between the signal terminal 5 and the ground circuit terminal 3 while pressing the Menu switch.
    • If greater than the specified value, replace the S78 turn signal/multifunction switch.
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