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Home >> Chevrolet >> 2019 >> Sonic LS, Automatic Trans >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> Traction Control/Stability Control Indicator Malfunction >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON
  2. Verify the Instrument Cluster Traction Control indicator turns ON and OFF when commanding the Instrument Cluster All Indicators ON and OFF with a scan tool.
    • If the indicator does not turn ON and OFF 

      Replace the P16 Instrument Cluster.

    • Go to next step: If the indicator turns ON and OFF 
  3. Verify the scan tool electronic brake control module Traction Control Switch parameter changes between Active and Inactive while pressing and releasing the traction control switch.
    • If the parameter does not change 

      Refer to Circuit/System Testing.

    • Go to next step: If the parameter changes 
  4. All OK.
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