Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition - On / Vehicle - In Service Mode
Verify DTC P0121, P0122, P0123, P0222, P0223, P0562, P0621, P0622, P16A0-P16A2, P2135 is not set.
- If any of the DTCs are set
  Refer to : Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step : If none of the DTCs are set
Verify the scan tool parameter : Throttle Body Idle Air Flow Compensation = Less than 90%
- If 90% or greater
  Refer to : Throttle Body Cleaning
- Go to next step : If less than 90%
Perform the following action : Clear the DTCs.
Ignition/Vehicle - Off
Ignition - On / Vehicle - In Service Mode
Perform the scan tool control function : Throttle Sweep - Start
Verify the scan tool parameter : TAC Motor = Enabled
- If not the specified state
  Refer to : Circuit/System Testing
- Go to next step : If the specified state
Verify the scan tool parameter : TAC Motor = Enabled
Perform the action while monitoring the parameter :
- Wiggle the harness and connector : Q38 Throttle Body
- Wiggle the harness and connector : X2 @ K20 Engine Control Module
- If not the specified state
  Repair as necessary - Wiring / Terminal(s) / Electrical Connector(s)
- Go to next step : If the specified state
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify the DTC does not set.
- If the DTC sets
  Refer to : Circuit/System Testing
- Go to next step : If the DTC does not set
All OK.