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Home >> GMC >> 2017 >> Terrain SL, Gas >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC B3567: Info Display Select Switch Circuit >> Circuit/System Testing

Circuit/System Testing

NOTE:

Circuit/System Verification must be performed before proceeding with Circuit/System Testing.

  1. Ignition OFF, disconnect the harness connector at the A20 radio/HVAC controls.
  2. Ignition ON, test for greater than 4.8 V between the harness connector signal circuit terminal 5 and ground.
    • If less than the specified range, test the signal circuit for a short to ground. If the circuit tests normal replace the P16 instrument cluster.
  3. Test for greater than 11 V between the signal A20 radio/HVAC controls signal circuit terminal 18 and ground.
    • If not within the specified range, test the signal for an open/high resistance or a short to ground. If the circuit tests normal replace the P16 instrument cluster.
  4. Install a 5 A fused jumper wire between the signal A20 radio/HVAC controls signal circuit terminal 18 and the low reference circuit terminal 6. Verify the scan tool Driver Information Center Switch parameter displays 0 V.
    • If not the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal replace the P16 instrument cluster.
  5. If all circuits tests normal, replace the A20 radio/HVAC controls.
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