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Home >> Chevrolet >> 2015 >> Traverse LS, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Steering Wheel And Steering Column >> Diagnostic Information and Procedures >> DTC B2850, B2855, B2870, or B2875: Steering Column Position Switch >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the tilt/telescope switch.
  2. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 1 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Verify the scan tool tilt switch and telescope switch parameters are Inactive.
    • If not the specified value, test the signal circuits listed below for a short to voltage. If the circuit tests normal, replace the MSM.
    • Tilt Up Switch terminal 2
    • Tilt Down Switch terminal 6
    • Telescope Forward Switch terminal 3
    • Telescope Rearward Switch terminal 5
  4. Install a 3A fused jumper wire between the signal circuits listed below and the B+ circuit terminal 1 . Verify the scan tool tilt switch and telescope switch parameters are Active.
    • Tilt Up Switch terminal 2
    • Tilt Down Switch terminal 6
    • Telescope Forward Switch terminal 3
    • Telescope Rearward Switch terminal 5
    • If not the specified value, test the appropriate signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the MSM.
  5. If all circuit test normal, test or replace the tilt/telescope switch.
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