17-1 Perform EEC or 4EAT Quick Test

^ Perform the appropriate Quick Test.

- EEC Quick Test if the MIL is on while driving.

- 4EAT Quick Test if the Overdrive "Off" Lamp (O/D OFF) is "On" or flashing while driving (other than Overdrive "Off" driving). See Transmission Control Systems

^ Are diagnostic trouble codes obtained or are any other conditions noticed?

YES -- Service as necessary.

NO -- Return to the Diagnostic Routine Index and check for other concerns.