Auto Shutdown (ASD) Relay Check: 3.3L
When there is no cam or crankshaft sensor signal with ignition switch in RUN position, ASD relay turns off power to electric fuel pump, fuel injectors, ignition coil and O2 sensor heating element.
When there is no cam or crankshaft sensor signal with ignition switch in RUN position, ASD relay turns off power to electric fuel pump, fuel injectors, ignition coil and O2 sensor heating element.