Auto Shutdown (ASD) Relay Check
NOTE:
If ASD relay is suspected of causing a fuel or ignition system malfunction, it will be necessary to use Diagnostic Readout Box (DRB-II) to diagnose ASD relay. See appropriate G - TESTS W/ CODES article.
When distributor signal is not present with ignition switch in RUN position, ASD relay turns off power to electric fuel pump, fuel injectors, ignition coil and O2 sensor heating element.