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Home >> GMC >> 2018 >> Canyon SL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.5L (LCV) - Repair Instructions >> Repair Instructions >> Throttle Body Idle Air Flow Compensation Reset >> With Scan Tool

With Scan Tool

  1. Ignition - On / Vehicle - In Service Mode
  2. Select:Module Diagnostics
  3. Select:Engine Control Module
  4. Select:Configuration/Reset Functions
  5. Select:Reset Functions
  6. Select:Throttle Body Idle Air Flow Compensation Reset
  7. Follow the instructions on the scan tool.
  8. Verify the scan tool parameter:Throttle Body Idle Air Flow Compensation =0%
    • If greater than 0 

      Repeat step 1

    • Go to next step: If 0 
  9. Engine - Idling - At normal operating temperature
  10. Verify the scan tool parameter:Engine Speed=-100 to +200 RPM of the Desired Idle Speed
    • {Test failed 1 time (s)}If not in the specified range 
    1. Engine idling. - For greater than 3 min
    2. Ignition/Vehicle - Off - For greater than 1 min
    3. Engine idling. - For greater than 3 min
    4. Repeat step 9
    • {Test failed 2 time (s)}If not in the specified range 
    1. Perform the following action:Road test the vehicle.
    2. Vehicle Speed - Greater than 70 km (44 mi)
    3. Decelerate - For 2 s
    4. Repeat step 10.2 - 3 times
    5. Engine idling. - For greater than 3 min
    6. Repeat step 9
    • Go to next step: If in the specified range 
  11. All OK.
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