Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Transmission and Drivetrain » Automatic Transmission/Transaxle » Testing and Inspection » Reading and Clearing Diagnostic Trouble Codes » Displaying & Reading Trouble Codes » With Manufacturer's Scan Tool (WDS or NGS Tester) » Quick Tests » Quick Test 3.0 - Key On, Engine Off (KOEO)  
 
 
  Quick Test 3.0 - Key On, Engine Off (KOEO)  
 

CAUTION: Do not install new parts based on a Diagnostic Trouble Code (DTC) ; carry out pinpoint tests first to avoid replacing unnecessary parts and reduce costs.

Some special considerations for Key On, Engine Off (KOEO) Quick Test include the following:

  • The KOEO Quick Test provides DTCs present at the time of testing.
  • Always diagnose DTCs before any repair or replacement of components or circuits. Carry out visual inspection and vehicle preparation as required; refer to Quick Test 1.0 for visual inspection and Quick Test 2.0 for vehicle and scan tool set up.
  • Select VEHICLE AND ENGINE SELECTION menu.
  • Select year, engine, or model with the appropriate qualifier if needed.
  • Select DIAGNOSTIC DATA LINK menu.
  • Select DIAGNOSTIC TEST MODE menu.
  • Select KOEO ON-DEMAND SELF-TEST.
  • Follow operating instructions from the scan tool menu screen.
  • Record all DTCs displayed.
  • Diagnose non-transmission DTCs first because they can directly affect the operation of the transmission. Road test the vehicle and repeat Quick Test 3.0 to verify the results.