Auto Shutdown (ASD) Sense

Power Distribution Center:

PURPOSE
The relay is used to connect the oxygen sensor heater element, ignition coil, generator field winding and fuel injectors to 12 volt + power supply.

DESCRIPTION
A 12 volt signal at this input indicates to the PCM that the ASD has been activated.



OPERATION
This input is used only to sense that the ASD relay is energized. If the powertrain control module (PCM) does not see 12 volts at this input when the ASD should be activated, it will set a diagnostic trouble code (DTC).

LOCATION
The ASD relay is located in the Power Distribution Center (PDC). Refer to label on PDC cover for relay location.