Subaru Crosstrek Service Manual: Dtc u0100 lost communication with ecm/pcm a

Detected when CAN data from the engine control module (ECM) does not arrive.

NOTE:

Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PROCEDURE">

Diagnostic procedure with diagnostic trouble code (dtc)

Dtc u0073 control module communication bus off

Other materials:

Starting and stopping the engine (models without push-button start system)
CAUTION When operating the Subaru Ascent starter motor, never crank the engine continuously for more than 10 seconds. If the engine of the Subaru Ascent does not start within 5 to 10 seconds, stop cranking and wait at least 10 seconds before attempting again. This pause helps prevent overh ...

Wiring diagram
ENTERTAINMENT > Audio SystemWIRING DIAGRAM1. AUDIORefer to “Audio System” in the wiring diagram.• 6.2 inch display: Audio System > WIRING DIAGRAM">• 7 inch display (model without telematics): Audio System > WIRING DIAGRAM">• 7 inch display (mo ...

Date and time settings
The items in the date and time settings can be set. To change the items, operate the " " or " " switch. NOTE The "Time/Date" item must be set to display the "Birthday", "Anniversary" and notifications for vehicle maintenance. The "Birthday" and "Anniversary" items can be entered ...