Circuit/System Verification

Verify DTC P182E or P1915 was not set by reviewing the scan tool Freeze Frame/Failure Records.
WARNING: Refer to Parking Brake and Drive Wheels Warning .

NOTE: The engine may have to be started to move the shift lever out of the Park position. Once out of the Park position, the engine can be turned OFF.
- If DTC P182E or P1915 was set
  Refer to DTC P182E or P1915 .
- If DTC P182E or P1915 was not set
Ignition ON, engine OFF.
Verify the scan tool Driver Shift Control Mode parameter displays None or Inactive with the shift lever in the Park, Reverse, Neutral and Drive positions and Active when the shift lever is left of the Drive position.
- If the parameter does not display the correct values
  Refer to Circuit/System Testing .
- If the parameter displays the correct value
Shift lever left of the D position.
Verify the scan tool Driver Shift Request parameter changes from None or Inactive to Upshift when the shift lever is pressed forward and from None or Inactive to Downshift when the gear shift lever is pressed rearward.
- If the parameter does not display the correct values
  Refer to Circuit/System Testing .
- If the parameter displays the correct value
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 .
- If the DTC does not set
All OK.