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you may need to get it flashed for tire size.... here is the code info
Circuit DescriptionThe traction control switch is a momentary-contact, normally-open switch that can be used to disable the traction control system (TCS) . Each time the traction control switch is pressed, the TCS enabled/disabled status changes. When TCS is disabled, the electronic brake control module (EBCM) illuminates the traction off indicator by opening the service traction control signal circuit.Conditions for Running the DTC
Conditions for Setting the DTCThe EBCM detects low voltage on the traction control switch signal circuit for 10 seconds.Action Taken When the DTC SetsIf equipped, the following actions occur:
Conditions for Clearing the DTCThe conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.Diagnostic AidsThoroughly inspect connections or circuitry that may cause an intermittent malfunction.Test DescriptionThe number below refers to the step number on the diagnostic table.
is the switch defective ..it was used