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Code Recording Procedure

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Main Function Switch CODE Position
    GM1212346Courtesy of GENERAL MOTORS COMPANY
  1. Turn the main function switch to the CODE position.
    2. NOTE:
    • If power is interrupted prior to the recording of the seven-character code, the code will be lost and the flow rate test will need to be repeated.
    • The flow test must run for a minimum of 8 - 10 seconds and be above 0.5 GPM for a code to be generated.
  2. Record TESTED flow rate, temperature, cycle and seven-character flow code information on repair order.
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