Scan Tool Testing and Procedures

1985
1. Place system in diagnostic test mode and wait for code 55 to appear on display screen.
2. Press ATM button on tool to activate display. To obtain specific ATM test, hold ATM button down until desired test code appears. Computer will continue to turn selected circuit on and off for as long as 5 minutes or until either ATM button is pressed again or ignition switch is turned off.
3. Actuator test codes are as follows: Code 01, spark activation; code 02, injector activation; code 03, AIS activation; code 04, radiator fan activation; code 05, A/C cutout relay activation; code 06, ASD relay activation; code 07 purge solenoid activation.